We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation. Learn more.

The 10 Best Protein Powders for Men of 2024, Researched and Tested

Dietitian approved powders to boost your protein intake

By
Isabel Vasquez RD LDN
Isabel Vasquez

Isabel Vasquez is a freelance writer and bilingual registered dietitian practicing from an intuitive eating, culturally sensitive framework. 

Learn about our editorial process
Updated on September 05, 2023
Medically reviewed
Verywell Fit articles are reviewed by board-certified physicians and nutrition and exercise healthcare professionals. Medical Reviewers confirm the content is thorough and accurate, reflecting the latest evidence-based research. Content is reviewed before publication and upon substantial updates. Learn more.
by
Jonathan Valdez, RDN, CDCES, CPT
Jonathan Valdez
Medically reviewed by Jonathan Valdez, RDN, CDCES, CPT

Jonathan Valdez, RDN, CDCES, CPT is a New York City-based telehealth registered dietitian nutritionist and nutrition communications expert.

Learn about our Medical Review Board
Fact checked
Verywell Fit content is rigorously reviewed by a team of qualified and experienced fact checkers. Fact checkers review articles for factual accuracy, relevance, and timeliness. We rely on the most current and reputable sources, which are cited in the text and listed at the bottom of each article. Content is fact checked after it has been edited and before publication. Learn more.
by
Rich Scherr
Rich Scherr
Fact checked by Rich Scherr

Rich Scherr is a seasoned journalist who has covered technology, finance, sports, and lifestyle.

Learn about our editorial process
Optimum Nutrition Gold Standard 100% Whey Protein Powder in a scoop next to the jar and blender bottle

Verywell Fit / Jhett Thompson

Protein powder can be a helpful supplement if you struggle to meet your protein needs from food alone. While many people can meet their protein needs without supplementation, some people, such as athletes, vegans, or those with a high muscle mass, may struggle to get enough protein. Athletes or highly active individuals can have over double the protein needs of sedentary individuals, which can make it difficult to meet protein needs through food alone. Men’s protein needs tend to be higher than women's due to gender related metabolic and body composition differences, with men typically having a higher muscle mass percentage.

Protein powders may consist of protein alone, from either animal or plant-based sources, or they may contain other ingredients such as added sweeteners, flavorings, or micronutrients. For those who are looking to build muscle, protein powder can help to repair and strengthen muscles that have been broken down during the workout, particularly when taken in the 2-hour post-recovery period. Enjely Mora, MS, RDN, LDN, sports dietitian at Metrowest Nutrition, says, “Protein powder can certainly support the process of building muscle. Muscle growth does require a training program specifically focused on muscle growth plus adequate protein.”

To compile our list of top protein powders for men, our dietitians analyzed research, interviewed experts, and evaluated protein powders based on quality of ingredients, third-party testing, and nutritional composition, including the protein source and amino acid composition. We also tested 25 top ranked powders in our lab by mixing a serving of each powder with water in a shaker bottle, and rated them for taste, texture, smell. We combined those results with third-party testing, nutrition, and value scores to select our top picks.

Editor's Note

Our team of registered dietitians reviews and evaluates every single supplement we recommend according to our dietary supplement methodology. From there, a registered dietitian on our Expert Review Board reviews each article for scientific accuracy.

Always speak with a healthcare professional before adding a supplement to your routine to ensure that the supplement is appropriate for your individual needs, and to find out what dosage to take.

Pros
  • Informed Sport Certified

  • Two ingredients

  • Ideal amino acid profile for muscle repair and synthesis

Cons
  • Not suitable for vegan diets or for those with dairy allergies

Now Foods is a trusted brand in protein powders, as they are Informed Sport certified—a third party organization that tests every batch for prohibited substances and ensures products are manufactured to high-quality standards. This is our best overall pick because it is a trusted brand with a simple product containing only whey protein isolate and sunflower lecithin. 

This pick is unflavored, making it easy to add to a variety of sweet or savory ways. We also chose this as our best overall pick because protein used is whey protein isolate. Whey protein is a high quality source of protein with high bioavailability and an impressive amino acid profile, including high amounts of Branch Chain Amino Acids (BCAAs), which play an important role in muscle repair and synthesis.

This protein powder contains 25 grams of protein per serving and 10% Daily Value of calcium. It is made with non-GMO ingredients and free from many common allergens. The isolated whey protein means the lactose content is minimal, so it may be tolerated by those with lactose intolerance. 

Key Specs:
Protein source:
whey protein isolate | Serving size: 1/3 cup | Protein per serving: 25 grams | Other ingredients: sunflower lecithin

Optimum Nutrition Gold Standard 100% Whey Protein Powder

Amazon

Our Ratings
  • Flavor
    4/5
  • Texture
    5/5
  • Nutrition
    4/5
  • Third-Party Testing
    5/5
Pros
  • Informed Choice Certified

  • Ideal amino acid profile for muscle repair and synthesis

  • More affordable option

Cons
  • Contains artificial flavors and sweeteners

  • Not suitable for vegan diets or those with soy or dairy allergies

If you’re looking for an affordable, trustworthy, flavored protein powder, we recommend Optimum Nutrition Gold Standard 100% Whey Protein. This powder is made with a whey protein blend with whey protein isolate, concentrate, and hydrolyzed whey protein. Each serving of this protein powder has 24 grams of protein and provides 10% Daily Value of calcium.

A blended whey protein can be a more affordable whey option without sacrificing any quality. A whey blend will have small amounts of fat and carbohydrate that will be higher than those of a powder that is made just from whey isolate. Because it is not solely whey protein isolate, it does contain some lactose (an amount comparable to an ounce of cheddar cheese). If you are very sensitive to lactose, this might not be the best choice. It is also not suitable for a milk or soy allergy. 

We like that this powder is Informed Choice certified, meaning it is regularly tested for banned substances. We also like that this product dissolves easily in water, with no grainy texture. However, it does not thicken the liquid at all, so if you want a creamier result, try mixing it with a milk base of your choice or blended into a smoothie. It has a mild chocolate flavor, and no unpleasant aftertaste, and also comes in a variety of flavors including banana cream, chocolate coconut, cookies and cream, strawberry, vanilla, and more.

The chocolate flavor in this product comes from cocoa powder, artificial, and natural flavors, and it is sweetened with acesulfame potassium, an FDA-approved artificial sweetener. Some may appreciate that it does not have added sugar, but some may also not want the artificial sweeteners and flavors in this protein powder. 

Key Specs:
Protein source:
whey protein isolate, whey protein concentrate, hydrolyzed whey protein | Serving size: 1 scoop | Protein per serving: 24 grams | Other ingredients: cocoa powder, sunflower and/or soy lecithin, natural and artificial flavor, acesulfame potassium

Transparent Labs Mass Gainer Weight Gainer Supplement

Transparent Labs

Our Ratings
  • Flavor
    4.5/5
  • Texture
    4.5/5
  • Nutrition
    4.5/5
  • Third-Party Testing
    5/5
Pros
  • Third-party tested with COAs available for review

  • High-calorie, concentrated formula ideal for weight and muscle gain goals

  • Grass-fed whey protein, high in BCAAs

Cons
  • Not suitable for vegan diets or those with dairy or tree nut allergies

  • May not suitable for those with impaired blood sugar control

Transparent Labs Mass Gainer Supplement, is formulated to support muscle building and weight gain, with 750 calories, 14 grams of fat, 110 grams of carbohydrates, and 53 grams of protein per 2 scoop serving. It also contains creatine, which can help to support muscle growth and weight gain. We like that Transparent Labs does third-party testing on all of their products, with Certificates of Analysis (COAs) available for each batch of product.

The protein source is grass-fed whey protein concentrate, with all essential amino acids including high amounts of BCAAs. The fat source is coconut milk powder and MCT (Medium Chain Triglyceride) Oil, which is an easily digestible and absorbable fat source. It does include a high amount of saturated fat with 12 grams for serving, as well as almost 600 milligrams of sodium, which may not be suitable for those on a heart healthy diet.

The carbohydrates are primarily from organic tapioca maltodextrin, which is rapidly absorbed and digested by the body and converted to glucose, the body's main source of energy. Because this powder contains 110 grams quick releasing carbohydrates, it may cause blood sugar spikes, so it may not be suitable for those with impaired blood glucose, such as those with diabetes. It does contain some carbohydrates as soluble fiber (6 grams per serving), which, combined with the protein and fat content, may help to reduce a blood sugar spike. However, we recommend speaking to a healthcare professional before taking this supplement if blood glucose levels are a concern.

We love the rich chocolate taste of the chocolate glaze donut flavor, but it also comes in sweet vanilla. This product did not dissolve completely when mixed with water in a shaker bottle, but it is pleasant to drink and does not have any chalkiness or aftertaste. It would also be a good choice to blend into a smoothie.

Key Specs:
Protein source:
whey protein concentrate | Serving size: 2 scoops | Protein per serving: 53 grams | Other ingredients: Maltodextrin, cocoa powder, coconut milk powder, MCT oil, creatine, soluble tapioca fiber, natural flavors, salt, oat flour, sweet potato flour, stevia extract  

Pros
  • Certified USDA Organic

  • Suitable for vegan diets

  • Contains additional vitamins and minerals from a powdered fruit and vegetable blend

Cons
  • Not third-party tested

  • Contains probiotics and digestive enzymes that may not be suitable for all

Nutiva’s Organic Plant Protein Powder can make for a good protein powder for men looking for an organic, plant-based option with an added nutrient boost. This protein powder contains a wide range of micronutrients, thanks to Nutiva’s powdered fruit and vegetable blend. In addition to 23 grams of protein per serving, it provides at least 25% Daily Value of vitamins A, C, D, E, and K, and many B vitamins. It also provides 15% Daily Value of iron.

The protein is from a blend of organic peas, sunflower, pumpkin, and hemp seeds, which combined, make this a complete protein source. However, it contains lower amounts of essential amino acids, including BCAAs, compared to whey protein varieties. Additionally, is that this product does not have third-party testing, and some might not want or need the added probiotic and digestive enzymes, which lack scientific backing.

This protein powder can fit most diets, as it is vegan, non-GMO, soy-free, and gluten-free. However, it does have coconut milk, so it is not recommended if you have a coconut allergy. It has no added sugar or stevia and is instead sweetened with monk fruit extract.

Key Specs:
Protein source:
pea, sunflower, pumpkin, hemp seed | Serving size: 1 scoop (31 grams) | Protein per serving: 23 grams | Other ingredients: organic creamer base, organic natural flavors, fruit and vegetable blend, himalayan sea salt, organic cinnamon, d-alpha tocopherol, bifidobacterium longum, digestive enzyme blend

Ritual Essential Protein Daily Shake 18+

Amazon

Our Ratings
  • Flavor
    5/5
  • Texture
    4.3/5
  • Aftertaste
    4.5/5
  • Smell
    5/5
  • Value
    5/5
Pros
  • Informed Sport and Informed Protein certified

  • Contains choline, calcium and iron

  • Transparent ingredient sourcing

Cons
  • Lower in BCAA amino acid content

Ritual’s Essential Protein Daily Shake is a vanilla-flavored, plant-based protein powder that has 20 grams of protein per serving. It uses pea protein and also has methionine added to provide a complete protein with all essential amino acids. We love that this product is Informed Sport certified, meaning that each batch is tested for banned substances. It is also Informed Protein certified, meaning that it is tested for protein amount, heavy metals, and pesticide levels. We also like that Ritual uses transparent sourcing practicing, providing sourcing information for each ingredient.

This protein powder uses monk fruit and stevia extracts for sweetness, keeping the added sugar amount to zero grams per serving. Other ingredients include natural vanilla flavor, organic medium-chain triglyceride (MCT) oil, xanthan gum, salt, sunflower lecithin, and mixed tocopherols to preserve freshness. While it does have a higher sodium level than other protein powders—13% daily value—this amount could be helpful for replacing lost electrolytes after long workouts.

This vegan protein is free from common allergens, making it suitable for various dietary needs. It is also a good source of fiber, with three grams per serving. Getting enough fiber in the diet is important for men, as it can promote digestive health, cholesterol management, and blood sugar stability.

Ritual offers a subscription service with some perks like free shipping, but you also have the option to purchase products without a subscription. 

Key Specs:
Protein source:
pea protein | Serving size: 1 scoop (30 grams) | Protein per serving: 20 grams | Other ingredients: organic coconut medium-chain triglyceride oil, xanthan gum, salt, sunflower lecithin, Reb-M, mixed tocopherols, organic monk fruit extract

Naked Whey Chocolate Protein Powder

Amazon

Our Ratings
  • Flavor
    5/5
  • Texture
    5/5
  • Nutrition
    5/5
  • Third-Party Testing
    5/5
Pros
  • Informed Choice certified

  • Only three ingredients

  • Sourced from grass-fed cows

  • Ideal amino acid profile for muscle repair and synthesis

Cons
  • Not suitable for vegan diets or those with dairy or tree nut allergies

If you’re looking for a delicious flavored protein powder without artificial or filler ingredients, we recommend Naked Whey Chocolate Protein Powder. It contains 25 grams of protein per serving from grass-fed, whey protein concentrate. It is Informed Choice certified, so you can feel secure that this product is tested for contamination with banned substances.

The only other ingredients are organic coconut sugar and organic cacao powder, giving it a slightly sweet, rich chocolate flavor, with only 5 grams of sugar per serving. Many flavored protein powders contain artificial sweeteners or other non-nutritive sweeteners like stevia or monk fruit, which can sometimes have an intense sweet flavor and unpleasant aftertaste. We like that this product provides a more mild sweetness and natural alternative. Also, consuming carbohydrates, including in the form of sugar, can help to replenish glycogen stores post-workout. We also like that this product is finely milled and dissolves well in liquids, with not gritty texture.

Key Specs:
Protein source:
whey protein concentrate | Serving size: 2 scoops (7.2 tablespoons) | Protein per serving: 25 grams | Other ingredients: organic coconut sugar, organic natural flavor

Dymatize Elite Casein Chocolate Protein Powder

Amazon

Our Ratings
  • Flavor
    5/5
  • Texture
    5/5
  • Nutrition
    4/5
  • Third-Party Testing
    5/5
Pros
  • Informed Choice Certified

  • High in calcium

  • Can help promote muscle recovery overnight

  • Dissolves quickly and completely

Cons
  • Contains artificial sweeteners

Casein is another dairy-based protein source containing all nine essential amino acids, and it contains more calcium than whey protein. It is digested and absorbed more slowly than whey, potentially helping to promote muscle recovery overnight if consumed after exercise and 30 minutes before sleep.

We recommend Dymatize’s Elite Casein Protein Powder, containing 45% Daily Value of calcium and 25 grams of protein per serving. It also contains 8% Daily Value of iron and potassium. We like that it is Informed Choice certified, so it is a good choice for athletes. Of note, it does contain artificial sweeteners, which may not be everybody’s preference.

We like that this product has a smooth texture, and dissolves quickly and completely in water, with no gritty texture. The vanilla flavor has a mild, pleasant taste, with no aftertaste, and it also comes in chocolate, cinnamon bun, and cookies and cream.

Key Specs:
Protein source:
micellar casein | Serving size: 2 scoops (36 grams) | Protein per serving: 25 grams | Other ingredients: sunflower creamer, cocoa powder, natural flavors, salt, sucralose, acesulfame potassium, potassium chloride, cellulose gum, xanthan gum, sunflower lecithin

Pros
  • Informed Sport Certified

  • A good source of iron

  • Budget-friendly

Cons
  • Lower in protein per serving

  • Lower in BCAAs compared to whey or casein

Pea protein is a vegan-friendly protein powder choice that contains all nine essential amino acids. We recommend NOW Sports Organic Pea Protein, as it is budget-friendly, Informed Sport Certified, certified organic, and non-GMO verified. It is also suitable for those looking for a vegan protein powder that is soy-free. NOW Sports also has extensive in-house testing for ingredient accuracy and for contaminants.

Note the protein content is slightly lower than other options at 15 grams per serving, but it provides an impressive 30% Daily Value of iron. We like that you can add this protein powder to a variety of options, since it is unflavored and free from sweeteners.

Key Specs:
Protein source:
organic yellow pea protein isolate | Serving size: 2 scoops (20 grams) | Protein per serving: 15 grams | Other ingredients: N/A

Pros
  • Third-party tested

  • Certified vegan

  • Good source of iron

  • Free of common food allergens

Cons
  • Contains a proprietary enzyme blend that lacks scientific backing

  • Might be too sweet for some

PlantFusion’s amino-acid infused protein blend offers 21 grams of plant-based protein per serving and is free of common food allergens. This combination of vegetables, legumes, and grains acts as complementary proteins, offering a vegan protein powder with all nine essential amino acids. It also contains 22% Daily Value of iron. We like that this protein powder is third-party tested for heavy metals, certified vegan, non-GMO, and free from common allergens.  

It is relatively high in sodium with almost 400 milligrams per serving, so be mindful if you have a condition that warrants limited sodium consumption. It also contains a proprietary digestive enzyme blend that lacks scientific backing for general use and may not be suitable for all.

This protein powder comes in vanilla, rich chocolate, red velvet cake, and cookies and cream flavors, sweetened with stevia and monk fruit extract, with no added sugar. We tested the vanilla flavor and found it to have a strong, artificially sweet vanilla taste and slightly unpleasant aftertaste, but it does dissolve well in water. We recommend trying this powder blended into a smoothie instead of just plain water for a more balanced flavor.

Key Specs:
Protein source:
pea protein isolate, artichoke powder, organic sprouted amaranth and quinoa powders, whole algae protein, added amino acids | Serving size: 1 scoop (30 grams) | Protein per serving: 21 grams | Other ingredients: enzyme blend, natural flavor, stevia extract powder, organic tapioca powder, silica, guar gum powder, lucuma powder, monk fruit extract powder, yacon powder

Pros
  • A good source of many micronutrients

  • High in fiber

  • Source of omega 3’s

Cons
  • Inulin fiber can cause GI discomfort in some people

Vega One’s All-in-One protein shake utilizes a combination of protein sources to offer all essential amino acids, with 20 grams of protein per serving. It includes more common vegan proteins like pea protein, flaxseed, and hemp protein, as well as sacha inchi—a plant that is rich in protein, fiber, and heart-healthy omega 3’s. This protein powder contains 6 grams of fiber per serving, which can help older men meet the recommended 30 grams of fiber per day, promoting digestive health and reducing risk for chronic diseases like type 2 diabetes and heart disease.

The dried fruit and vegetable blend in this powder provides other nutrients important for older men to consume, including calcium and vitamin D for bone health and potassium for heart health. It also contains a significant amount of many other micronutrients including iron, vitamin A, B vitamins, vitamin C, and vitamin K, as well as antioxidants to help reduce inflammation.

We love that this protein powder provides so many nutrients that may benefit men over 50. However, it’s important to consult a healthcare professional before taking this supplement if you have a preexisting medical condition or if you take other supplements or medications, to avoid over supplementation and potential drug-nutrient interactions.

Key Specs:
Protein source:
pea protein, flaxseed, hemp protein, sacha inchi protein | Serving size: 1 scoop (40 grams) | Protein per serving: 20 grams | Other ingredients: pea starch, organic acacia gum, natural flavor, organic gelatinized maca root, organic broccoli, inulin, organic spirulina, organic kale, organic marine algae, dried fruit & vegetable blend, chlorella vulgaris, papain, probiotics, stevia leaf extract, citric acid, dried antioxidant fruit blend

Is Protein Powder Beneficial for Men?

Protein powder can be beneficial for men with especially high protein needs, such as those who are athletes or otherwise very active. It can serve as an easy means of refueling after a strength-training workout to build muscle and support recovery. 

Men who can particularly benefit from protein powder include: 

  • Athletes. Endurance athletes’ protein needs are higher than those of an average sedentary adult, but strength-based athletes’ protein needs can be even higher. Therefore, especially as a strength-based athlete, you may benefit from a protein supplement. Endurance athletes may best benefit from focusing on a carbohydrate-based supplement instead of a protein powder. If you are not a competitive athlete but regularly lift weights, you may likely still benefit from a protein powder, especially if you exercise for longer than an hour most days of the week with a training plan that increases your reps, time, or lifting amount.
  • People following a plant-based diet. One common concern for people eating plant-based can be not getting enough or a variety of plant protein. Plant-based protein can be lower in digestibility and lower in leucine—one of the primary amino acids used for building muscle. While there are plenty of plant-based protein food options, such as beans, tofu, nuts, and seeds, if you do not eat enough of these foods, you may not be meeting your protein needs, especially if you are an athlete. Protein powder, specifically pea or soy protein powders, can be an easy, effective means of boosting your protein intake. 
  • People on-the-go. When you’re on-the-go, it can be hard to get complete meals in regularly. Protein powder can be a helpful resource if you need an easy, portable meal or snack. For example, you can have a well-balanced smoothie for breakfast using protein powder, milk, fruits, and veggies.

Who Might Not Benefit from Protein Powder?

  • People who consume a variety of food sources of protein. Over-consumption of protein can be unnecessary, and potentially taxing on the kidneys at very high levels. Getting too much protein could mean that you aren’t getting enough carbohydrates or fat, both important nutrients for your body. Therefore, if you consume a variety of food sources of protein, you can likely meet your protein needs without a supplement. 
  • People who are sedentary or minimally active. If you are generally healthy and inactive or moderately active, then your protein needs are likely achievable through food alone. 
  • People with kidney problems. Because over-consumption of protein can be taxing on the kidneys, you may want to be careful with protein powder intake if you have a kidney problem. Protein powder has high amounts of protein in a small volume, so it can be easier to exceed protein needs. Consult with your doctor before beginning a protein powder regimen.

How We Select Supplements

Our team works hard to be transparent about why we recommend certain supplements; you can read more about our dietary supplement methodology here. 

To help come up with this list, we consulted with experts Enjely Mora, MS, RDN, LDN, and Susana Meléndez, RDN, LD. Our dietitian Anne Cook Carroll, MS, RD, CDN is constantly reviewing new protein powders and keeping an eye on the latest research to make sure our recommendations are up-to-date.

We support supplements that are evidence-based and rooted in science. We value certain product attributes that we find to be associated with the highest-quality products.

It's important to note that the FDA does not review dietary supplements for safety and effectiveness before they go to market. Our team of experts has created a detailed, science-backed methodology to choose the supplements we recommend.

In addition to our research, we tested 25 of the top protein powders in the Verywell Testing Lab to rate each product for taste, texture, smell, and value. We tested the products by mixing a serving of each powder into cold water in a shaker bottle, noting how long it took to dissolve (and if it dissolved completely), and then tasted the product evaluating flavor, texture and smell. We then combined these ratings with a nutrition and third-party testing score from our nutrition editor to get an overall rating for each pick.

We Also Tested

While not a top pick for any category, we also tested these organic protein powders and think they are still worth highlighting.

GNC AMP Pure Isolate Whey Protein: We love the taste of the chocolate frosting flavor, which also dissolves well in liquid and has a smooth texture and no unpleasant aftertaste. It contains 25 grams of protein per serving from whey protein isolate, a preferred protein source for muscle repair and growth. It's also free of banned substances for sport, but it is not third-party tested for heavy metals or other potential contaminants. It also contains artificial flavoring and sweeteners.

Ascent Native Fuel Whey Protein Powder: This protein powder is Informed Sport Certified and contains a blend of whey protein isolate and concentrate, with 25 grams of protein per serving. We loved the taste of the chocolate peanut butter flavor, containing natural flavors, peanuts, and cocoa, and sweetened with stevia. While it dissolves well in liquids, it does have a slight powdery aftertaste.

Gnarly Grass-Fed Whey Protein: NSF Certified for Sport and sourced from antibiotic-free, non-rBGH grass-fed cow's milk, this is a quality whey protein powder option with 25 grams of protein per serving. We love that it is a finely ground powder that dissolves well in liquids with a smooth and creamy texture, even when mixed with plain water. The vanilla flavor has a clean vanilla taste, and is not overpowering or too sweet. However it does contain prebiotics, probiotics, and digestive enzymes that lack scientific backing for regular use.

What to Look For

Supplements that are third-party tested are sent to a lab, where they are tested to ensure they contain what they say they contain and are not contaminated with specific high-risk, common contaminants. However, it’s important to note:

  1. Third-party testing does not test to see whether a product is effective or safe for everyone, and it does not ensure that the supplement will not interact with other supplements or medications.
  2. Not all third-party testing is created equal. It is not uncommon for supplement companies to pay labs for certificates after conducting minimal to no testing. 
  3. The third-party certifications we trust are: ConsumerLab.com, NSF, and USP. However, these certifications are difficult to obtain and/or expensive for manufacturers, so many companies choose not to get their products tested by one of these three organizations. 
  4. Sometimes products tested by these three companies are more expensive, to try to offset the cost they pay for certification.
  5. Just because a supplement is not tested by one of these three companies, that does not mean it’s a bad product. We recommend doing some research on the reputability of the manufacturer, and calling up the manufacturer and their testing lab to determine their protocols and decide whether you feel comfortable consuming the supplement.

Protein powders may contain trace amounts of heavy metals, especially those that are plant-based, likely related to plants’ uptake of heavy metals through the air, water, and soil. However, the levels found in protein powders have not been found to be harmful when consumed in moderation. Purchasing third-party-tested products helps to ensure that they do not contain harmful levels of heavy metals.

Form

Protein powders come in a variety of forms. They can be plant-based, using pea, soy, hemp, nuts, or seeds; or they can be animal-based, using whey, casein, egg, or collagen. Pea, soy, casein, whey, and egg proteins are all complete sources of protein, meaning that they contain all nine essential amino acids that our bodies can’t produce on their own. 

According to the International Society of Sport Nutrition (ISSN), whey protein may be digested more rapidly and thereby promote optimal muscle protein synthesis for athletes. Dairy-based protein powders, including both whey and casein, are the preferred sources of protein powders to support muscle repair and synthesis due to their high bioavailability and essential amino acid content, including high amounts BCAAs, particularly leucine.

As far as plant-based protein forms, both pea and soy protein are a complete proteins and have been shown to promote muscle protein synthesis, particularly when consumed throughout the day, and especially around a workout.Additionally, some protein powders contain combinations of plant-based protein sources that together contain all essential amino acids, making it a complete protein source.

Protein powders can be found in isolated, concentrated, or hydrolysated form, each of which have a different content of macronutrients and different ease of absorption by our bodies. When it comes to whey protein, this also affects the lactose content. Meléndez says, “If you have lactose intolerance, you may experience some discomfort [with whey protein]. Some are sensitive to lactalbumin. If this is you, look to utilize hydrolyzed whey. This is pre-digested, so it has almost no lactose.”

Ingredients and Potential Interactions

It is essential to read the ingredient list and nutrition facts panel of a supplement carefully, to know which ingredients are present and how much of each ingredient is included, relative to the recommended daily value of each one. Please take the supplement label to a healthcare provider to review the different ingredients contained in the supplement and any potential interactions between these ingredients and other supplements and medications you are taking. 

Protein powders can contain added sweeteners, flavors, stabilizers, allergens, or performance enhancers. Reading the ingredient list and purchasing third-party-tested products whenever possible can help you avoid consuming a product that aggravates intolerances or contains ingredients you want to avoid. 

Dosage

Always speak with a healthcare professional before adding a supplement to your routine to ensure that the supplement is appropriate for your individual needs and to understand which dosage to take. 

The Dietary Guidelines for Americans recommend that sedentary adults consume 0.8 grams of protein per kilogram of body weight each day. For a 150-pound individual, that means 55 grams of protein, and for a 200-pound individual, it means 73 grams of protein. However, this can vary greatly, based on your physical activity level or whether you have other medical conditions that affect protein needs. For a competitive athlete, protein needs can reach 1.4 to 2 grams per kilogram of body weight, which is why protein powders can particularly be beneficial for athletes.

We recommend getting your nutrition—including protein—from a variety of food-based sources. While protein powder can contribute to meeting your protein needs, you want to incorporate a variety of protein foods regularly, as they provide many other important nutrients.

How Much Protein Powder Is Too Much?

While there is no tolerable upper limit (UL) for protein, research has shown that consuming over 2 grams per kilogram long-term can result in renal, vascular, and digestive abnormalities. Researchers have proposed an upper limit of 3.5 grams per kilogram of body weight. 

There are other risks of consuming too much protein powder, which include:

  • Digestive upset
  • Over-consumption of heavy metals
  • Inadequate consumption of carbohydrates and fats

Frequently Asked Questions

  • Do whey or soy protein powders affect male hormones?

    Despite some confusion, neither of these protein types has been shown to affect male hormones. Research has shown that soy isoflavones—components in soy that have estrogen-like properties— do not significantly alter testosterone production in men. 

    Soy protein isolate is considered safe for men to eat without experiencing feminizing effects. Meléndez even says, “Soy is actually one of the best protein sources out there, due to the leucine content.” The same is true for whey protein. Studies have shown no impact on testosterone in men who consume whey protein.

  • Does using protein powder help with weight loss?

    Weight is impacted by a combination of lifestyle, systemic, and genetic factors. It’s important to keep in mind—regardless of weight—how your food choices are impacting your overall health. 

    Research has shown that focusing on health-promoting behaviors, rather than weight, helps to improve health outcomes regardless of weight change. Protein powder can help you up your protein intake, promote satiety, and refuel after strength-training workouts.

  • Is it safe to drink protein powder every day?

    While drinking protein powder daily likely won’t pose any serious safety issues, there are some risks. If you are consuming a product that isn’t third-party tested, you may be unknowingly consuming harmful substances on a regular basis. 

    Even if you are consuming a product that is third-party tested, dietary variety is key. Mora says, “For those who opt to use protein powder, make sure most of your daily protein intake comes from real food.” Consuming a variety of whole foods is important for nutritional balance. Leaning too heavily on protein powder may result in inadequate consumption of fats, carbohydrates, and important micronutrients.

  • What is the best type of protein powder to use?

    The best type of protein powder to use depends on your goals and your lifestyle. There is no single protein powder choice that is best for everyone. We recommend choosing one that fits your health needs and dietary preferences and that tastes good to you!

22 Sources
Verywell Fit uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Thomas DT, Erdman KA, Burke LM. Position of the academy of nutrition and dietetics, dietitians of canada, and the american college of sports medicine: nutrition and athletic performanceJ Acad Nutr Diet. 2016;116(3):501-528. doi:10.1016/j.jand.2015.12.006

  2. Geer, E, Shen, W. Gender differences in insulin resistance, body composition, and energy balanceGender Medicine. 2009;6:60-75.

  3. Recovery after exercise: what is the current state of play? Current Opinion in Physiology. 2019;10:17-26. doi:10.1016/j.cophys.2019.03.007

  4. Frequently Asked Questions. Informed Sport.

  5. Thomas DT, Erdman KA, Burke LM. Position of the academy of nutrition and dietetics, dietitians of canada, and the american college of sports medicine: nutrition and athletic performanceJ Acad Nutr Diet. 2016;116(3):501-528. doi:10.1016/j.jand.2015.12.006

  6. Hoffman JR, Falvo MJ. Protein – which is best? J Sports Sci Med. 2004;3(3):118-130.

  7. Nutrition C for FS and A. Additional information about high-intensity sweeteners permitted for use in food in the united states. U.S. Food & Drug Administration.

  8. Kreider RB, Kalman DS, Antonio J, Ziegenfuss TN, Wildman R, Collins R…Lopez HL. International society of sports nutrition position stand: Safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017; 14:18.

  9. Barber TM, Kabisch S, Pfeiffer AFH, Weickert MO. The health benefits of dietary fibreNutrients. 2020;12(10):3209. doi:10.3390/nu12103209

  10. Wheeler ML, Dunbar SA, Jaacks LM, et al. Macronutrients, food groups, and eating patterns in the management of diabetesDiabetes Care. 2012;35(2):434-445. doi:10.2337/dc11-2216

  11. Kim J. Pre-sleep casein protein ingestion: new paradigm in post-exercise recovery nutritionPhys Act Nutr. 2020;24(2):6-10. doi:10.20463/pan.2020.0009

  12. Vitale K, Getzin A. Nutrition and supplement update for the endurance athlete: review and recommendationsNutrients. 2019;11(6):1289. doi:10.3390/nu11061289

  13. Jäger R, Kerksick CM, Campbell BI, et al. International society of sports nutrition position stand: protein and exerciseJournal of the International Society of Sports Nutrition. 2017;14(1):20. doi:10.1186/s12970-017-0177-8

  14. Berrazaga I, Micard V, Gueugneau M, Walrand S. The Role of the anabolic properties of plant- versus animal-based protein sources in supporting muscle mass maintenance: A critical reviewNutrients. 2019; 11(8):1825. doi:10.3390/nu11081825

  15. Questions and answers on dietary supplements. U.S. Food & Drug Administration.

  16. A human health risk assessment of heavy metal ingestion among consumers of protein powder supplementsToxicology Reports. 2020;7:1255-1262. doi:10.1016/j.toxrep.2020.08.001

  17. Thomas DT, Erdman KA, Burke LM. Position of the academy of nutrition and dietetics, dietitians of canada, and the american college of sports medicine: nutrition and athletic performanceJ Acad Nutr Diet. 2016;116(3):501-528. doi:10.1016/j.jand.2015.12.006

  18. Hevia-Larraín, V., Gualano, B., Longobardi, I. et al. High-protein plant-based diet versus a protein-matched omnivorous diet to support resistance training adaptations: A comparison between habitual vegans and omnivoresSports Med 51, 1317–1330 (2021). doi:10.1007/s40279-021-01434-9

  19. Wu G. Dietary protein intake and human healthFood Funct. 2016;7(3):1251-1265. doi:10.1039/C5FO01530H

  20. Neither soy nor isoflavone intake affects male reproductive hormones: An expanded and updated meta-analysis of clinical studiesReproductive Toxicology. 2021;100:60-67. doi:10.1016/j.reprotox.2020.12.019

  21. Rushdy DS, Kamel RM, Nasef SAS, Elsayed SEDB, Goda HM. Impact of resisted exercises and whey protein on growth hormones and testosterone in normal subjectsJ of Medical Sciences. 2017;18(1):27-33. doi:10.3923/jms.2018.27.33

  22. Eat Right. Academy of Nutrition and Dietetics.

Was this page helpful?
Thanks for your feedback!
What is your feedback?