Regardless of the plethora of protein powders in the marketplace these days, most people go for whey or casein.

There’s a great motive for this: consultants and research virtually unanimously agree they’re the simplest protein dietary supplements for supporting muscle development.

There’s much less consensus, nonetheless, in terms of which of those two is greatest.

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

Others declare casein is the true winner as a result of it’s a “slower burning” protein, preserving 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 concerning 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 contains two forms of protein: casein and whey (80{589fddde7e6633b59d0de77a7109e7f54aa2d5e82d3fdee55903b1cd11cb4f7a} casein and 20{589fddde7e6633b59d0de77a7109e7f54aa2d5e82d3fdee55903b1cd11cb4f7a} whey).

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

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

What’s the Distinction Between Whey and Casein?

The primary distinction between whey and casein is digestion pace. 

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 fast improve in MPS (particularly whenever you take it post-exercise).

When casein reaches your abdomen, it curdles within the acid, slowing its digestion. In consequence, 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 an enormous 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 “sluggish launch” prevents muscle breakdown through the hours that you simply’re asleep (and thus not consuming protein).

Whereas this logic appears cheap, analysis doesn’t help it.

Research present that each forms of protein aid muscle growth equally effectively, and offered you consume sufficient whole protein all through the day, taking casein earlier than mattress offers no profit.

(And in the event you’d like particular recommendation about how a lot protein you need to eat to achieve your health targets, take the Legion Weight loss plan Quiz.)

When it comes to style and texture, whey and casein are fairly totally different. Whey tends to have a lighter, extra refreshing taste and mouthfeel. In distinction, casein tends to be thicker and creamier (which is why folks usually 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 comprises compounds which will reduce hypertension, lower heart problems danger, and act as antioxidants. Whey comprises antibodies that exert antioxidant results and enhance nutrient absorption. That stated, none of those advantages are vital sufficient that they need to sway your opinion a method or one other. 

Discover the Finest Weight loss plan for You in Simply 60 Seconds

What number of energy do you have to eat? What about “macros?” What meals do you have to 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 influence in your potential to construct muscle regardless of digesting at totally 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 ingesting a shake made with Whey+ protein isolate after training because it’s light and refreshing, which is more fitting after a hard workout than heavier, creamier casein.

Casein vs. Whey for Weight Loss

No kind of protein powder will directly burn body fat or help you lose weight on its own.

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

If you need a clear, 100{589fddde7e6633b59d0de77a7109e7f54aa2d5e82d3fdee55903b1cd11cb4f7a} pure, scrumptious micellar casein protein powder that’s naturally sweetened and flavored and comprises no synthetic dyes or different chemical junk, strive Casein+

(And in the event you aren’t certain 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 comprises no synthetic meals dyes, junk components, fillers, soy, gluten, GMOs, MSG, or hormones, and that’s 100{589fddde7e6633b59d0de77a7109e7f54aa2d5e82d3fdee55903b1cd11cb4f7a} naturally sweetened and flavored, it might be a viable choice.

If, nonetheless, 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, reminiscent of Whey+ or Casein+ instead.

FAQ #2: Is casein or whey better for women?

Both are about as effective as each other for helping women build muscle, so choose whichever suits your personal preferences.

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


If you’d like a vegan protein powder that’s about as effective as whey or casein for building muscle, try Plant+.

+ Scientific References