Best whey protein 2025: a dietitian’s opinion (15 brands)

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Summary of my selection

#1: Best whey 🥇
> Whey Native Isolate – Nutripure

#2: Best alternative
> Whey Native Isolate – Nutri&Co

#3: Best value for money
> Whey Native Isolate – Nutrimuscle

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Whey is derived from the dairy industry, it comes from the milk serum, or whey. The serum is obtained during the coagulation of milk in the cheese-making process.

This serum mainly contains lactose and small soluble proteins rich in essential amino acids. Its biological value (the degree of absorption and the quality of amino acids) is 104 to 114, making it one of the best proteins.

It’s easier to understand why athletes have taken to consuming it to meet their protein needs and to increase their muscle mass.

But there are many types of whey, and even more brands: it’s increasingly complicated to navigate the labels and thus to make the right choice.

To make things clearer, I tested and compared 15 of the best-selling wheys on the Internet, I rated them based on 5 quality criteria, then selected the top 3 products.

Tested brands : AMFIT, BiotechUSA, Bulk, EAfit, Eiyolab, Foodspring, My Protein, NU3, Nutri&Co, Nutrimuscle, Nutripure, Optimum Nutrition, Protein Works, Pure AM Nutrition, Scitec Nutrition.

We independently evaluate all dietary supplements. If you click on one of the proposed links, a commission may be earned by us without affecting the price or ranking.

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My grading criteria

To create this comparison, I determined 5 quality criteria based on the characteristics of the products and on my test of each of the 15 whey proteins.

Each criterion is rated out of 5, and the average of the 5 criteria determined my ranking.

For each whey, I also considered the price per 100 g, to highlight the best value options

→ Access my complete comparative table here (Google Sheet)

1. Nutritional value

To compare the nutritional value of different wheys, I relied on two main criteria: their protein content and their richness in BCAA.

To ensure the fairest comparison possible, I checked the ingredients and nutritional contributions of the chocolate flavor versions, generally the most consumed.

In general, the richer a whey is in protein, the fewer carbohydrates and fats it contains — which is a good quality indicator.

Conversely, when the protein rate is lower, you often find more so-called “filler” ingredients.

The BCAA (branched-chain amino acids) content is also an essential criterion. The more BCAA a whey contains, the more effective it will be in supporting muscle building. It also reflects the quality of the milk used and a gentle extraction process that preserves the integrity of the proteins without denaturing them.

2. Safety

To rate the safety of different wheys I relied on 4 sub-criteria:

• The source of used milk and how the cows are fed
  Thus, pasture-fed or grass-fed cows produce better quality milk than cows raised intensively.

• Native or non-native quality
  When the whey is native, filtration is done cold, maintaining the full integrity of the proteins.

• The number of additives and texturizing agents
  Most texturizing agents used are not controversial, but their presence in large quantities is not ideal for the body. On a daily basis, it is better to consume products with the shortest recipe possible.

• The sweeteners used
  There are 3: sucralose, acesulfame K, and steviol glycoside. The first 2 are controversial, while steviol glycoside seems for now harmless.

3. Brand reputation

To assess the reputation of different whey brands, I looked at several data points:

• The age of the brand
  A brand present for several years (or decades) often has a proven track record. It has been able to retain its customers and maintain a certain level of quality. For me, this is a true guarantee of reliability.

• Presence on Instagram
  I also looked at the size of communities on Instagram. This is not the most determining criterion, but it gives an idea of the engagement around the brand and the relationship it maintains with its customers.

• Customer reviews
  I relied on feedback available on platforms like Amazon, Trustpilot, or Verified Reviews (depending on which is most used for each brand). I did not consider ratings of brands with less than 100 reviews, as that seems too little representative to me. Conversely, a large number of positive reviews is a true sign of customer satisfaction and thus a good indicator of trust.

4. Solubility

A whey that mixes well and doesn’t clump is a whey that’s pleasant to consume.

So I tested the solubility of 15 brands by mixing 30 g of whey for 250 ml of water in a shaker. Each whey was mixed for 10 seconds to ensure a fair comparison.

5. Taste

This part is more subjective, so I based it on my personal tastes !

I evaluated:

• The texture, favoring creamy textures 
• The strength of the sweet taste, favoring less sweet wheys.
• The naturalness of the taste, favoring natural tastes and penalizing overly chemical tastes

6. Price per 100 g

I always compared prices of “small” sizes, the sachets ranging from 750 g to 1 kg. Indeed, prices vary greatly depending on the quantity: the more we buy in large quantities, the lower the price per kilo.

When a reduction is applied permanently, it was included in the final price for the comparison.

The price per 100 g is not included in the final score calculation, but it providesa clear view of the value for money offered by each brand.

Best wheys: my opinion

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#1: BEST WHEY 🥇

Nutri&Co is a French brand created in 2017. It specializes in selling dietary supplements intended to improve health, beauty, and sports performance. Its goal is to bring the best possible quality with simple formulas and non-controversial ingredients, at a fair price.

Nutri&Co’s whey isolate and native chocolate flavor contains 83 g of protein per 100 g with 24.8 g of BCAA. This composition is very rare for a whey, indicating an exceptional quality of milk. It contains 5.3 g of carbohydrates, which is on the lower end in the comparison.

Nutri&Co whey is native, so it does not come from the industrial cheese whey but directly from the milk. The proteins are cold-extracted by micro-filtration, preserving their quality.

The milk from which the whey is derived comes from French pasture-fed cows, this is the best quality possible for a whey currently.

Nutri&Co whey contains only 2 additives: xanthan gum and sunflower lecithin. They are not controversial. The brand has chosen not to use chemical sweeteners: for the sweet flavor, only steviol glycoside (from stevia) is used.

The powder mixes well and does not clump, its chocolate taste is pleasant, without a chemical aftertaste.

Nutri&Co brand also enjoys an excellent rating of 4.5/5 on the Trustpilot site , with many positive reviews highlighting the quality of the products, the transparency of the brand, and the responsiveness of customer service.

This whey is among the most expensive on the market at 49.90€ per kg, but quality has a price !

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#2: BEST ALTERNATIVE

Nutripure is a French brand created in 2018 by two high-level athlete brothers. Their ambition is to create a brand of “perfect” dietary supplements, that is, without controversial substances and of optimal quality.

Nutripure Whey Isolate Native cocoa flavor contains 80 g of protein per 100 g with 17.9 g of BCAA per 100 g. It also contains 2.8 g of fat and 3.8 g of carbohydrates. The carbohydrates are provided by the presence of lean cocoa rather than lactose.

This whey is native, sourced from fresh French pasture milk. The proteins are isolated by cold micro-filtration. They thus remain intact and are not denatured by heat treatment.

Nutripure discards all controversial substances for flavor; the brand uses natural flavors and only one natural sweetener, steviol glycoside. Derived from stevia, this sweetener is the safest on the market.

The powder mixes very well, it does not clump and its taste is really good. The cocoa content of the product brings a touch of indulgence without artificial aftertaste, although I would have appreciated a slightly sweeter taste.

This whey is one of the most expensive in our comparison: 53.2 euros per kg, but the price is justified by the product’s quality.

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#3: BEST VALUE FOR MONEY

Nutrimuscle is a French brand founded in 1993, claiming to be the first French supplements brand dedicated to bodybuilding.

Its native whey isolate boasts a solid composition, with 81.2 g of protein per 100 g and 18.9 g of BCAA, rather high levels.

However, it contains 7.2 g of carbohydrates, which is relatively high for an isolate. This indicates a higher lactose content than that found in other whey isolates, which could be a drawback for lactose-intolerant individuals.

Fortunately, the formula includes lactase, an enzyme that aids in lactose digestion. This addition effectively compensates for the presence of lactose and ensures good digestive tolerance in the vast majority of cases.

This whey contains no glycomacropeptides (GMP), peptides characteristic of whey derived from cheese whey. Their absence confirms that this is indeed a true native whey, extracted directly from milk, which is a significant quality guarantee.

Nutrimuscle demonstrates great transparency by providing quality certificates (milk control, absence of contaminants…), but it is unfortunate that the exact origin of the milk is not specified, only indicated as coming from the European Union.

In terms of formulation, it also stands out for the presence of prebiotic fibers (inulin) and probiotics, which help improve digestive comfort.

The cocoa flavor is pleasant, well balanced, and the powder dissolves very well, offering a smooth and fluid texture without lumps.

The only downside for me is the presence of sucralose, an artificial sweetener whose safety is debated, especially regarding its potential impact on gut microbiota.

In terms of reputation, Nutrimuscle whey benefits from good visibility on social media, with over 90,000 followers on Instagram. It has a rating of 4.2/6 on Verified Reviews, based on over 27,000 customer reviews, which indicates rather solid overall satisfaction.

Offered at €42.90 per kilo, this whey presents an excellent quality/price ratio, especially given its quality and formulation.

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The other whey products in the comparison

Protein Works – Whey Protein 80

A concentrated whey at an attractive price, with a well-balanced chocolate taste and a creamy texture. It mixes easily and is very pleasant to drink. Its protein content is good for a concentrated whey.

Despite the presence of some additives, the lack of information on the source, and the lack of details on the amino acid profile, it is a convincing option for small budgets.

Foodspring – Whey Protein

A mix of concentrated and isolate whey, with a multitude of original flavors and a generally creamy texture, despite some potential lumps.

Sourced from grass-fed cows in New Zealand, it stands out for the low protein amount it offers, the lowest in our comparison. I also wonder about the relevance of such distant sourcing for a quality that remains improvable.

Optimum Nutrition – Gold Standard 100% Whey

Historical brand, this whey combines isolate, concentrate, and hydrolysate for rapid absorption. I appreciated the chocolate flavor for its balance, with a smooth texture and no lumps. The protein amount is decent for a blend, but the BCAA levels could be better.

This whey also contains controversial sweeteners. It is also a pity there is no information on the source of the ingredients: a bit more transparency would be welcome.

BiotechUSA – Iso Whey Zero

Very high in protein with added BCAA and glutamine, this whey stands out for its native quality. The chocolate flavor is not very sweet, the texture creamy, and the solubility impeccable. It clearly positions in the high-end, with a price accordingly.

However, the presence of 7 additives is excessive for a whey of this level, and the absence of source information is regrettable.

Eiyolab – Isolate HT

Very protein-rich whey isolate (86%), with an exemplary 20 g of BCAA. Its texture is quite liquid, well soluble, and without lumps.

The milk used comes from Europe, which is a good point, but it’s still a bit vague: I wish there were more information on traceability. Also, be careful with sensitive palates: the sweet taste is particularly pronounced.

My Protein – Impact Whey Protein

Ultra-popular concentrated whey, with a wide choice of flavors (36!). The chocolate flavor is very sweet but delicious. The texture is fluid, the solubility good, making it an ideal option for regular use at a low price.

The protein content is average, but the BCAA amount remains interesting. However, there is a real lack of traceability, which is a shame.

Bulk – Pure Whey Protein

This concentrated whey has a decent protein content but not optimal, and a rather low BCAA amount compared to other wheys on the market. I find it overall balanced, with a creamy texture, even though it can sometimes clump. The vanilla flavor is classic and well-proportioned. It’s sourced from pasture-raised cows, which is appreciated, especially at this price.

We know it comes from Europe, but I’d like more details for complete traceability.

NU3 – Performance Whey

This whey presents one of the lowest protein and BCAA contents in our comparison, limiting its nutritional appeal. Nevertheless, it remains pleasant to consume: sweet, creamy, with very good solubility.

The vanilla flavor is intense, even too much for me. It contains 3 non-controversial additives, which is rather reassuring, even though I regret the lack of traceability.

EAfit – Pure Whey

This whey is a blend of concentrate, isolate, and hydrolysate, enriched with vitamins and enzymes. It shows an average protein content (76%) and a BCAA amount also lagging compared to other references in the comparison. The double chocolate flavor is light and pleasant, the texture is fluid, and it dissolves very well.

I regret the presence of several controversial sweeteners, as well as an overall high number of additives, some of which raise questions. Another weak point: the total lack of information on the origin of the milk.

Scitec Nutrition – 100% Whey Protein Professional

This concentrated whey is enriched with enzymes, glutamine, and BCAA, but despite this, it contains few proteins and a low BCAA amount compared to other wheys in the comparison. It contains two controversial sweeteners, giving it a very sweet and highly flavored taste.

The texture is creamy, but I find the aftertaste a bit too persistent. In terms of solubility, nothing to complain about, it’s perfect. However, there is a real lack of transparency about the milk’s origin, and its price is clearly high given the quality offered.

AMFIT – Whey Protein

This simple and very economical whey is a blend of concentrate and isolate. The protein amount is not particularly high, and the absence of an amino acid profile does not allow knowing the actual BCAA content, which is a shame. Its texture is a bit rough, the strawberry flavor remains discreet, and some lumps may appear.

It remains correct for starters or as a backup, but I regret the lack of transparency about the milk’s origin and formulation. This clearly affects its low overall score.

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Complete ranking

Ratings out of 5	Overall score	Nutrition	Safety	Taste	Solubility	Brand
Nutri&co Whey Native Isolate	5,0	5	5	5	5	5
Nutripure Native Whey Isolate	4,8	5	5	4	5	5
Nutrimuscle Whey Native Isolate	4,6	5	4	5	5	4
Protein Works Whey Protein 80	4,4	4	3	5	5	5
Pure AM nutrition Pure Whey Isolate	4,4	5	4	5	4	4
Foodspring Whey Protein	4,2	4	4	5	4	4
Optimum Nutrition Gold Standard 100% whey	4,2	4	3	5	5	4
BiotechUSA Iso Whey Zero	4,0	4	3	5	5	3
Eiyolab Isolate HT	4,0	5	4	3	5	3
My Protein Impact Whey Protein	4,0	4	4	4	5	3
Bulk Pure Whey Protein	3,8	3	4	5	3	4
NU3 Performance Whey	3,8	3	3	4	5	4
EAfit Pure Whey	3,6	4	3	2	5	4
Scitec Nutrition 100% Whey Protein Pro	3,4	3	3	3	5	3
AMFIT Whey Protein	3,2	3	3	4	4	2

→ Access my complete comparative table here (Google Sheet)

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The different types of whey

Concentrated whey

Concentrated whey is the most commonly used and sold whey. It mainly comes from the cheese industry. 

During cheese production, casein (solid proteins used in cheese making) is separated from whey or lactoserum through high-temperature thermal treatment. This treatment denatures part of the proteins. The whey is then dehydrated to give concentrated whey. 

It contains about 80% protein, as well as fats and lactose. Its cost is relatively low, making it an interesting option for small budgets. However, it is less digestible for those sensitive to lactose.

Native whey

Native whey is a whey that does not come from the cheese industry, the lactoserum is separated from casein by cold filtration directly from milk. There is no denaturation of the proteins.

The purer whey is better assimilated and more digestible. It is often considered a high-quality whey. However, its more demanding manufacturing process makes it more expensive.

Whey isolate

Whey isolate is a concentrated whey that has undergone an additional filtration. It is stripped of most of its fats and lactose. 

It is particularly interesting for lactose intolerant individuals, or those looking to minimize calorie intake.  

Its nutritional richness is exceptional as it contains about 90% protein, but its production is more costly.

Note that a whey can be both native and isolate. It is the best quality available on the market.

📚 Also read | Best whey isolate: a dietitian’s selection

Hydrolyzed whey

La Hydrolyzed whey is a whey isolate that has undergone an additional enzymatic treatment. This process results in a sort of pre-digestion of proteins, which makes them even more rapidly absorbable by the body.

It is the most processed whey form, but also the most digestible. It is ideal for individuals with digestive disorders or for athletes requiring an immediate protein intake, such as very intense training sessions or competitions.

It is generally more expensive, and its taste is often more bitter., as hydrolysis releases peptides with a stronger taste. Even when flavored, hydrolyzed whey remains less pleasant to the taste than other forms. This criterion should be considered before adopting it.

Vegan whey

La vegan whey does not exist : by definition, whey comes from milk and therefore contains animal proteins.

However, there are many 100% plant-based alternatives in the form of protein powders.

These substitutes, suitable for vegan diets, are often composed of a blend of pea, rice, hemp, soy proteins, etc., to ensure a complete amino acid profile.

📚 Also read | Comparison of the best plant-based protein powders

Frequently Asked Questions (FAQ)

What is whey used for?

Whey is a fast and easily assimilable protein source, often used to meet increased protein needs, especially in cases of regular or intensive sports practice.

It contains all the essential amino acids, with a high content of BCAA, making it an excellent support for recovery and muscle growth. Thanks to its composition, whey is quickly digested, which allows muscles to quickly receive what they need after exertion.

In summary, whey is not a meal replacement, but a practical supplement to optimize protein intake, promote recovery, and support muscle building, especially after training.

How much whey should be consumed per day?

The amount of whey to consume depends on your overall protein needs, which vary according to your weight, your physical activity level, your goals (mass gain, maintenance, weight loss) and what you already consume through your diet.

If your diet already covers a good portion of your needs, whey can simply come as a supplement.
In general, I recommend about 20 to 30 g of whey after a workout to promote muscle recovery. This corresponds to a standard serving, easy to integrate into the day.

There is no need to consume it in excess: what matters is the balance of your total protein intake throughout the day, not the amount of whey itself.

How many times a day can you take whey?

Again, there is no universal rule. It all depends on your protein needs and what you already consume through your diet.

For example, a person who eats a lot of meat, fish, eggs, or dairy products probably won’t need more than one dose (or even none). Conversely, someone who follows a diet low in animal products or who has very high needs (intensive sports, mass gain) can take it twice a day.

What counts is not the number of doses but the total amount of protein throughout the day. Whey simply complements the diet, not replace it.

Where to buy whey?

Whey is now easily accessible, both online and in stores.

It can be purchased in specialized sports nutrition stores, in some large sports stores, or even in some pharmacies. And of course, online, either on platforms like Amazon, or directly on the brand’s website, which sometimes enables access to advice or exclusive promotions.

As part of our test, we ordered whey on Amazon or directly from the brands via their online store.

The most important thing is to choose a transparent brand about its composition, with a good traceability of ingredients.

When to take whey?

There’s no one-size-fits-all time, but some moments are more beneficial depending on your goals.

The most classic is right after training : at this time, the muscles are more receptive to proteins, and whey, which is quickly assimilated, helps to optimize recovery and muscle reconstruction.

You can also take it as a snack, especially if meals are far apart or low in protein, or integrate it into a meal (in porridge, a smoothie, etc.) to enrich your plate.

What is especially important is to spread protein intake throughout the day is more effective than concentrating everything on a single meal or only after sports. The body uses proteins better when they are distributed regularly, meeting needs at each moment of the day.

Whey or casein?

La whey or whey protein comes from the liquid part of milk after coagulation. It contains soluble proteins, small in size, very digestible and quickly assimilated. This makes it an excellent choice right after training , to quickly provide the muscles with the acids they need.

La casein, on the other hand, comes from the solid part of milk, found in yogurts, cottage cheese, skyr, curd cheese, etc. . These are proteins larger, slower to digest, and sometimes less well tolerated depending on the person.

The use is therefore different: casein is often taken in the evening, to slowly release proteins overnight, which helps to limit muscle catabolism (the breakdown of muscles).

That said, casein is primarily for those who have very high protein needs , as in some intense sports practices (like bodybuilding ). For most practitioners, whey is more than enough .

Whey or BCAA?

Les BCAA (valine, leucine, isoleucine) are three essential amino acids : the body cannot produce them, they must come from the diet. They play a key role in muscle building and recovery. Without them, no efficient protein synthesis.

That said, if you consume a quality whey, you already have a good dose of BCAA naturally in it. It is therefore not necessary to add in supplement, except in very specific cases.

Taking BCAA might be beneficial just before training, especially to limit muscle catabolism during long or intense sessions. But if your overall protein intake is sufficient, it is not a must.

In summary :

• BCAAs are already present in good amounts in good whey.
  
• Taking extra BCAAs is only beneficial in specific contexts.
  
• The priority is to have adequate protein intake throughout the day.

📚 Read also | Comparison of the best BCAAs

Whey or creatine?

It’s a question I’m often asked, and in reality… they are two very different things.

La Creatine is an amino acid derivative naturally present in the body, particularly in muscles and the brain. It is produced by the kidneys, liver, and pancreas from three amino acids: arginine, glycine, and methionine. Its role is to quickly provide energy during short and intense efforts. It is particularly useful for strength, power, or bodybuilding sports.

La whey, while itself is a protein source. It serves to promote muscle recovery and lean mass development after exertion. Nothing to do with creatine, then.

In summary:

• La Creatine boosts performance during training.
• La whey helps with recovery and muscle building.

Both can be complementary, depending on your goals.

📚 Read also | What is the best creatine on the market?

Does whey make you lose weight?

No, whey is not a slimming product. Its main role is to support the growth or maintenance of muscle mass, especially in active people.

However, developing muscle mass helps increase basal metabolism, which is the amount of energy the body burns at rest. In this context, if the diet is low-calorie (caloric intake lower than needs), whey can indirectly help promote fat loss, by limiting muscle wasting and facilitating recovery.

Are there any dangers and contraindications to consuming whey?

Whey itself is not dangerous. If it is used to supplement protein intake in a balanced diet, it can even be very useful: for athletes, vegetarians, or simply those who struggle to meet their daily protein needs.

But as with anything, it’s excess that poses a problem. When consuming too much protein in the long term, especially in the context of an already calorie-rich diet, there can be adverse effects: digestive issues, overload for the kidneys or liver, or even unwanted weight gain.

In some young people, there is also a possible aggravation of acne, especially with regular whey consumption in an unbalanced context.

It is even more important to watch out for those with kidney insufficiency, even mild. In this case, consuming whey without medical advice is really not recommended.

Is whey essential for muscle gain?

No, clearly not. I often get asked this question, and I repeat: you can definitely build muscle without ever touching a shaker. What matters is to have sufficient protein intake throughout the day, and it can be done very well with a regular diet: meat, fish, eggs, legumes, tofu, dairy products…

Whey is just a convenient tool. It can be handy when you have a busy schedule, a small appetite, or slightly higher needs. But it is neither indispensable nor magical. If your plate is well-constructed, you can very well do without it.

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