Regardless of the plethora of protein powders available on the market these days, most folk go for whey or casein.

There’s motive for this: specialists and research virtually unanimously agree they’re the best protein dietary supplements for supporting muscle development.

There’s much less consensus, nevertheless, on the subject of which of those two is greatest.

Some say whey is the most effective protein for constructing muscle as a result of it causes a speedy spike in amino acid ranges within the blood (the “constructing blocks” of protein), which helps you construct muscle sooner.

Others declare casein is the true winner as a result of it’s a “slower-burning” protein, retaining your amino acid ranges elevated for for much longer than whey, which ends up in extra muscle development over time. 

Who’s proper?

On this article, we’re going to have a look at what science says in regards to the deserves of casein vs. whey protein, so you may resolve which is greatest for you.

What Are Casein and Whey Protein Powder?

Cow’s milk incorporates two sorts of protein: casein and whey (80% casein and 20% whey).

Complement producers extract each of those proteins and course of them into powder which they promote as protein dietary supplements.

Each are in style amongst weightlifters as a result of they include all of the important amino acids (amino acids your physique should get from meals), and they’re wealthy within the amino acid leucine, which performs a significant function in initiating muscle protein synthesis (MPS).

What’s the Distinction Between Whey and Casein?

The principle distinction between whey and casein is digestion velocity. 

Whey is acid-soluble (it dissolves in acid), so it digests shortly in your abdomen. This implies it spikes blood amino acid ranges quickly after you eat it, stimulating a speedy improve in MPS (particularly if you take it post-exercise).

When casein reaches your abdomen, it curdles within the acid, slowing its digestion. Consequently, casein doesn’t elevate blood amino acid ranges as excessive as whey protein, nevertheless it retains them elevated for longer (as much as six hours).

Right here’s a graph illustrating this level:

Leucine Appearance

Many individuals make a giant deal of this distinction, claiming whey is a greater post-workout protein as a result of it expedites the muscle-building course of, and casein is a superior pre-bed protein as a result of its “gradual launch” prevents muscle breakdown through the hours that you just’re asleep (and thus not consuming protein).

Whereas this logic appears affordable, analysis doesn’t assist it.

Research present that each sorts of protein assist muscle development equally nicely, and offered you eat sufficient complete protein all through the day, taking casein earlier than mattress provides no profit.

(And for those who’d like particular recommendation about how a lot protein it is best to eat to succeed in your health objectives, take the Legion Eating regimen Quiz.)

When it comes to style and texture, whey and casein are fairly completely different. Whey tends to have a lighter, extra refreshing taste and mouthfeel. In distinction, casein tends to be thicker and creamier (which is why individuals typically use it in high-protein puddings, pancakes, and different recipes).

There are additionally a handful of minor well being advantages related to each whey and casein. 

Casein incorporates compounds which will scale back hypertension, decrease heart problems danger, and act as antioxidants. Whey incorporates antibodies that exert antioxidant results and improve nutrient absorption. That stated, none of those advantages are important sufficient that they need to sway your opinion a technique or one other. 

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What number of energy must you eat? What about “macros?” What meals must you eat? Take our 60-second quiz to get science-based solutions to those questions and extra.

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Casein Protein vs. Whey Protein: Which Is healthier?

Casein vs. Whey for Muscle Constructing

As we’ve already seen, whey and casein have virtually the identical affect in your capacity to construct muscle regardless of digesting at completely different charges. As such, you shouldn’t tie your self in knots attempting to resolve between the 2—go along with no matter fits your preferences. 

Personally, I like consuming a shake made with Whey+ protein isolate after coaching as a result of it’s gentle and refreshing, which is extra becoming after a tough exercise than heavier, creamier casein.

Casein vs. Whey for Weight Loss

No form of protein powder will instantly burn physique fats or provide help to shed weight by itself.

That stated, analysis reveals that casein might assist improve fats loss barely greater than whey protein when mixed with a calorie-restricted food regimen.

In order for you a clear, 100% pure, scrumptious micellar casein protein powder that’s naturally sweetened and flavored and incorporates no synthetic dyes or different chemical junk, strive Casein+

(And for those who aren’t positive if Whey+ protein powder or Casein+ protein powder is best for you, take the Legion Complement Finder Quiz! In lower than a minute, it’ll inform you precisely what dietary supplements are best for you. Click on right here to test it out.)

FAQ #1: Is it price shopping for a casein whey mix?

It relies upon.

If you will discover a casein and whey mix that gives high-quality casein and whey from hormone- and antibiotic-free cows, that additionally incorporates no synthetic meals dyes, junk components, fillers, soy, gluten, GMOs, MSG, or hormones, and that’s 100% naturally sweetened and flavored, it might be a viable choice.

If, nevertheless, shopping for a casein and whey mix means you must go for a protein complement of decrease total high quality, it isn’t price it. Go for a premium casein or whey protein powder, comparable to Whey+ or Casein+ as a substitute.

FAQ #2: Is casein or whey higher for ladies?

Each are about as efficient as one another for serving to ladies construct muscle, so select whichever fits your private preferences.

FAQ #3: Is whey or casein appropriate for vegans?


When you’d like a vegan protein powder that’s about as efficient as whey or casein for constructing muscle, strive Plant+.

+ Scientific References