Whey and Acne: Does Whey Protein Cause Acne?

Whey and acne

Could whey protein be making your acne worse?

So you’re taking whey protein for muscle building. Hey, I get it! I’ve been there.

You’re probably breaking out with some acne, too.

And you’re wondering, “Could whey protein be causing my acne?”

And the answer would be, yes! At least, it’s definitely contributing to your acne, and here’s why.

What is whey protein, anyway?

I’ll keep this short. Whey protein is one of the two main proteins in cow’s milk (the other being casein). Whey protein powder is made from whey, a by-product of cheese making. It’s an almost neon-yellowish liquid that’s strained off in the initial draining of most cheeses.

In other words, whey is dairy, and essentially, that’s why it causes acne and must be avoided.

One secret ingredient in whey that causes breakouts

Whey causes acne for several reasons, and one reason (we think) is because whey contains a hormone called IGF-1 (insulin-like growth factor 1). This hormone is meant for baby cows to make them grow big and strong while they’re drinking their mothers’ milk.

Humans also make IGF-1 – you got it in your mother’s milk if you were breastfed, and you get some every time you drink a glass of milk (or a whey protein shake). IGF-1 makes baby cows grow fast, and it also makes us humans build muscle faster, which is one reason why whey is so widely used for muscle building (other than the fact that it makes it easy to down 50 grams of protein at once).

IGF-1 is normally regulated by your body, which has insanely complex systems of checks and balances to make sure your hormones don’t get out of whack (and cause problems like acne). But if you’re straight drinking the stuff, you’re throwing alien IGF-1 into the mix, which screws up your hormones. (And acne is primarily a hormonal disease, despite popular belief to the contrary.)

So there’s a serious problem with getting extra IGF-1 from whey protein.

It tends to cause acne! (Several observational studies on bodybuilders who get acne from whey protein have confirmed this.[1] [2] )

How does IGF-1 from whey cause acne?

Here’s the basics of how IGF-1 from whey triggers your skin to create acne:

  • IGF-1 makes your skin produce excess oil
  • IGF-1 tells your skin cells to multiply too fast (so your pores get clogged more often with dead skin cells)
  • IGF-1 glues dead skin cells together inside your pores before they can escape normally (through a complex signaling mechanism), meaning more clogged pores

In addition to these problems, most whey protein powder has actually been pasteurized twice, which denatures the proteins and forms complex protein + sugar cross links that are very difficult for your body to digest. If you’re also eating gluten (which damages your gut lining and allows food particles to pass through), chances are these large alien molecules are crossing into your bloodstream and wreaking small amounts of inflammatory havoc on your skin (i.e., redness and swelling and acne).

Whey spikes your insulin, worsening acne

It’s no secret that dairy products spike your insulin three to six times as much as they should, judging by their low glycemic index.

The problem with spiking your insulin like this is that it tends to worsen acne, in a similar fashion to IGF-1. The two hormones are closely related and interact with each other in ways that we don’t fully understand – but the most important thing to remember is that whey protein (as protein powder, or in milk / dairy products) triggers this insulin-spiking response in your body, which may be an additional mechanism for how whey contributes to acne.[3]

As you can see, while whey protein is very effective at building muscle, it causes acne for a number of reasons, and is better to avoid if you’re going for clear skin.

Whey protein isolate vs. whey protein concentrate

Whey protein concentrate is worse than whey protein isolate, because it contains more of the intact milk hormones that cause acne.

Whey protein isolate is more intensely processed to get rid of as much of the “non-protein” stuff as possible, but don’t take that as a recommendation to go buy whey protein! It still causes acne.

Other acne-causing ingredients in whey protein powders

In addition to the IGF-1 in all whey protein, most off-the-shelf whey protein powders contain loads of artificial flavorings, sugar, artificial colors, artificial sweeteners, and just basically artificial everything. These ingredients can also cause acne, and create an extra toxin load for your body to deal with.

Yes, it’s true: 100% pure whey protein isolate is not as bad for acne as fancy commercial blends containing the above crappy ingredients, but even 100% whey protein isolate still causes acne, in my personal experience.

What about high-quality whey protein?

I’ve tried grass-fed whey from New Zealand, low-temperature processed whey protein isolate and concentrate, and several other 100% whey protein powders and have always noticed a few pimples. And that’s pretty conclusive evidence to me, considering that the rest of my diet is a completely clear-skin diet (which I show you how to do in my book).

Cut out the whey if you want clear skin!

I’m pretty opinionated on this. If you haven’t read my milk and acne article, read it now. Milk is the #1 worst thing for acne, along with all other forms of dairy – skim milk, yogurt, cream cheese, sour cream, yogurt, you name it (aside from grass-fed butter, which I don’t believe contains enough IGF-1 to cause problems, and which contains beneficial and hard-to-find compounds like CLA, omega-3s, and Vitamin K2). Whey protein is derived from cow’s milk, so if you’re eating whey protein and you’ve got acne, try removing it and see if your skin improves. Mine certainly did!

What about soy protein?

Avoid like the plague!

Seriously, soy has strong estrogenic activity in the body, and that’s not something you want to muck around with if you’re dealing with acne. Soy phytoestrogens fit neatly into your body’s own estrogen receptors, but don’t activate them fully, disrupting the complex ebb and flow and feedback loops of your body’s hormonal system.

I strongly advise you to avoid soy protein.

Alternatives to whey for building muscle (that don’t cause acne)

There are all kinds of other vegan protein powders out there, like hemp protein and pea protein and brown rice protein, but I’m just not a fan. First, they don’t taste very good (chalky, gritty, etc.), and second, I just think getting protein from meat is more complete, more effective, and stimulates your muscle-building hormones in a natural way that doesn’t tend to cause acne.

Eating red meat boosts your testosterone and helps build muscle. It contains heme iron which improves oxygen transport in your body, potentially increasing your maximum force output (and strength). Red meat also contains naturally-occurring creatine, for which aspiring bodybuilders have been paying loads of money for the last several decades. And yes, red meat even contains branched chain amino acids!

Non-red meat like chicken, pork, and fish also supports muscle growth through high-quality, complete proteins, BCAAs, and high mineral content. I’m a huge fan of the Paleo diet, as it’s the only diet I’ve found with two very important characteristics:

  • It cures acne
  • It’s sustainable and nutritionally complete (i.e. long-term healthy, unlike raw food diets, for example)

That’s why I recommend meat as your main source of protein. It’s better for your skin than whey protein, and will support muscle growth as long as you’re eating enough.

Eat this kind of meat whenever possible

Eat grass-fed meat as much as possible.

Avoid factory-farmed meat like the plague. It contains synthetic hormones, heavy metals, PCBs, agricultural pollutants, hormone disruptors (very bad for acne), and low-quality inflammatory fats (omega-6s) which lead to increased inflammation / redness / swelling of acne.

Grass-fed meat contains cancer-protective CLA, anti-inflammatory omega-3 fats, and many other awesomely healthy nutrients that factory farmed meat doesn’t.

Which meat is best for muscle building?

Red meat. Grass-fed. No question about it. It has the most creatine, the most heme iron, the most nitric-oxide boosting abilities, and boosts your testosterone the most (and that’s good for the ladies, too, as women also need testosterone to build muscle, and no, it will not make you look like the Hulk! It will just make you lean, strong, and sexy).

This means grass-fed beef, bison, venison, elk, and all other grass-fed (or wild) animals that produce red meat.

The next best meat is grass-fed pork.

I mean truly 100% grass-fed pork (not “pastured” pork, which usually means pigs raised on pasture, but fed corn and grains!). Check out pastured pork here: http://www.texasgrassfedbeef.com/id78.htm I have yet to try Slanker’s grass-fed pork, but they say their pigs actually produce red meat, not white meat. Whoa! I have eaten pork from heritage pigs in France that were raised in the woods, and while they were fed some grain, their meat was still incredibly dark and red-meat-like, so I can’t wait to try Slanker’s truly, 100% grass-fed, red-meat pork. It’s pretty affordable, too, compared to grass-fed meat in general, so it’d be a great thing to stock your freezer with.

Next best is probably wild-caught fish.

The fattier the better, because the omega-3 fats will help shorten your recovery time after working out.

And last are chicken and turkey.

I’m not saying never eat chicken or turkey, as they’re still much healthier than grains, beans, soy, tofu, gluten, milk, whey, and all other Frankenproteins. But they contain the highest amounts of omega-6 fats, and not enough omega-3s to balance them out. It’s just how the birds grow. If you’ve ever seen chicken schmaltz (chicken fat), you can see it’s much jello-like than, say, bacon fat or beef tallow, because it contains lots more omega-6 fat and not as much saturated fat (which, at the risk of throwing one too many curveballs, is actually healthy for you, as the science is now showing).

But what about my post-workout protein shake?

Don’t sweat it. You don’t need it to gain muscle. Just make sure you eat a meal with protein within 1-2 hours after your workout. A pound of grass-fed ground beef is my favorite post-workout meal. If you’re really going for muscle building, eat a few sweet potatoes along with the beef, pork, chicken, or other meat.

Your gains might be a tad slower without your post-workout shake, and your recovery time a tad longer, but the most important thing to remember is that post-workout shakes give you acne, and so if you want clear skin, I’ve found through years of experimentation that it’s best to be okay with a little bit slower gains. If you try to hack your body with whey protein, you risk getting acne. Play it safe!

Take the long view! Would you rather gain 2 pounds of muscle a week and get loads of acne, or gain 1 pound a week and have clear skin?

If you’re skinny and gaining muscle, you could drink a gallon of milk a day (GOMAD) and cram down 4,000 calories, but you will feel like crap the whole time and your skin will break out badly. (I’ve only managed to do HGOMAD, i.e. half a gallon of milk a day, but I still felt crappy, and it was raw milk to boot!)

Here’s a better solution for gaining muscle without the acne

Here’s a better solution: stick to real, whole Paleo foods, including lots of grass-fed meat, and you will still be able to make rock-solid gains (without gaining fat), and your all-around health and energy and mental clarity/focus will improve, too.

Most importantly, your skin will clear up.

P.S.: Are you lifting heavy enough to build muscle?

Another important thing to keep in mind is that, to build muscle, you’ve got to lift heavy. Most machines do not allow you to do this properly and safely (contrary to popular belief), and most personal trainers don’t know how to do the most beneficial lifts for muscle growth properly.

The #1 exercise you can do for overall strength and mass development is the squat. The barbell squat, that is. That does not mean 1/2 squats, where you only go down until your thighs are at 45 degrees. That means going at LEAST to parallel with the ground! Make sure your stance is wide, though, because if it isn’t, you risk hurting your knees. Check out Starting Strength – that book is the absolute bible of weightlifting for complete beginners to advanced weightlifters.

There are really only five exercises you need to do to get a complete, whole-body workout that most gym-goers dream of:

  • Squats
  • Bench press
  • Deadlifts
  • Press
  • Power cleans

If you’re not gaining muscle, and you want to, do these five exercises only. Cut out the machines, cut out the Body Pump, cut out the cardio. These five free-weight lifts are the most powerful combination for overall basic strength development and muscle gain – they use many muscle groups at the same time, which produces a more effective growth stimulus as well as making you more functionally strong, because in all real-life weightlifting scenarios (e.g. moving to a new house, hauling stuff, lifting boxes), you’re using many muscle groups at the same time (which curls, for example, do not train you how to do!).

Again, if you’re interested in doing these lifts, I’ll refer you to Starting Strength, the best book there is on weightlifting for muscle + strength gain. (And yes, it’s great for women, too – in fact, many of the explanatory photos in Starting Strength use women as models!).

P.P.S.: One more reason to avoid whey

Whey comes from milk. Milk comes from dairy farms. Dairy farms tend to separate baby calves from their mothers, and feed them with grass or grains instead. That does not make for happy baby cows! This is a generalization – some hip dairy farms allow the calves to suckle from their mothers and just take the leftovers, but for the most part, raising cows for milk does not make for happy cow families. It feels much better to eat grass-fed beef than to eat whey protein or dairy, because most grass-fed beef farmers keep mothers and calves together the whole time, and let the mothers raise their babies on their own milk. I don’t know about you, but I just feel better about that.

Key Takeaways

  • Whey protein contains IGF-1 and other substances that cause acne.
  • Avoid whey protein if you want clear skin (both whey protein concentrate and whey protein isolate).
  • Drop the idea of gaining 2lbs per week – focus on slow, steady gains, which will a) reduce acne potential, and b) give your connective tissue more time to build up so you don’t get a bad injury.
  • For gaining muscle, eat whole Paleo foods instead, including lots of grass-fed meat.
  • Eat a meat-based Paleo meal 1-2 hours after your workout to maximize gains (including 1-2 sweet potatoes if you’re a hardgainer).
  • Lift heavy weights (squat, bench press, deadlift, press, power clean) to make sure you’re actually shocking your body into growing muscle (read Starting Strength for how to lift for better gains).
  • Avoiding whey protein is only one part of a holistic diet- and lifestyle-based treatment for acne.
  • You need to fix your diet and lifestyle to really cure the root causes of acne (that’s what our book is all about!).
Sources (click to expand)

  1. Acne and whey protein supplementation among bodybuilders. Dermatology. 2012;225(3):256-8. doi: 10.1159/000345102. Epub 2012 Dec 13. http://www.ncbi.nlm.nih.gov/pubmed/23257731 ^
  2. Whey protein precipitating moderate to severe acne flares in 5 teenaged athletes. Cutis. 2012 Aug;90(2):70-2. http://www.ncbi.nlm.nih.gov/pubmed/22988649 ^
  3. Evidence for acne-promoting effects of milk and other insulinotropic dairy products. Nestle Nutr Workshop Ser Pediatr Program. 2011;67:131-45. doi: 10.1159/000325580. Epub 2011 Feb 16. http://www.ncbi.nlm.nih.gov/pubmed/21335995 ^

Related posts:


  1. Steph says

    Hey Devin!

    Quick question… What about quinoa? Is quinoa protein a good alternative to whey protein?

    I would also like to know your opinion about treating acne with brewer’s yeast.


    • Devin Mooers says

      Hey Steph! I don’t consider grains or pseudo-grains to be a great protein source for people dealing with acne. You can reduce the levels of anti-nutrients in these foods by, for example, properly soaking them in an acidic medium, but I generally think it’s much safer to go with meat/animal sources of protein.

      Do you mean quinoa protein powder? Is there even such a thing?

      Also, no idea about using brewer’s yeast to treat acne, sorry!

    • Devin Mooers says

      Hey Danny, you could give it a shot… there are a few sub-optimal ingredients in it like sucralose and artifical flavorings, but as it’s based on hydrolyzed beef protein, it’s probably worth a shot. Just FYI, I seem to react personally to BCAAs and creatine, which makes sense with the science since they can both increase levels of DHT. Carnivor seems like pretty potent stuff, so it might have a negative impact on your free androgen / DHT levels, potentially worsening acne (since it’s so much more concentrated/intense than, say, steak/beef), so keep a close watch on your skin while trying it.

    • Devin Mooers says

      Hey Shane! I just added a small section to the article about soy protein and why I recommend avoiding it. Hope that helps.

    • Devin Mooers says

      Hey! Just browsed the Dr. Oat ingredients – it’s got sunflower oil (vegetable oil), soy protein, and a range of grains/beans, none of which we recommend if you’re struggling with acne. Same with whole grain bread – gluten is one of the top four worst foods for acne we’ve identified. I wish I could give the whole overview here, but it’s pretty complex – we go into a bunch of detail in our book if you’d like to have a look at that!

    • Devin Mooers says

      Hey Laura, whoa, slow down a minute! I wouldn’t expect that either of these things would trigger acne. What else are you eating on an average day?

  2. Allen says

    I’ve read this post about 4 months ago and decided to stop taking dairy altogether due to acne. It was the best decision I’ve ever made! For those cutting dairy out, the results to clear skin will take time and patience. For those concern about missing out on protein shakes, vegetable base shakes are an alternative, however costly compare to standard whey protein. But it’s worth the extra coin to clear skin. Good luck!

    • Devin Mooers says

      Hey Allen – thanks for stopping by again and commenting! Great to hear about your awesome experience with cutting out dairy. You mentioned vegetable base shakes – are you referring to something like hemp protein? Or the “Vega” brand dairy-free protein powders, or similar? (BTW egg white protein is also a viable alternative that doesn’t seem to trigger acne for most folks – definitely more expensive than whey but may well be worth it, like you said!)

  3. Emilie says

    So the thing is, I work out quite a lot – 6 times a week, I do weightlifting and crossfit, and therefore I’ve been drinking a Whey protein shake whenever I’ve done a workout, but I’m sort of getting the feeling, that this is what’s causing my acne. Anyway, I’m thinking about switching out my whey protein with Egg protein powder, and I’m wondering if this will cause acne too? I’ve also been considering taking BCAA supplements, I’ve googled it, and I can’t really find anything about its relation to acne, so I’m assuming it’ll be safe to take?
    I know you are recommending meat as the primary source to protein, but I do need some sort of other way to get my protein, since I’m a very busy student, who doesn’t have the time to cook that much nor the money to buy all that meat. :) So it’ll be great if you have any suggestions of what to switch out my whey protein with?.


    • Devin Mooers says

      Hey Emilie! How’s it going? 6 days a week of weightlifting/CF sounds intense! Egg white protein is a great alternative – we’ve had some folks who’ve reported trying it and not geting any acne from it. Definitely worth a shot. Personally, I haven’t had success with BCAAs, i.e. they seemed to make me break out – that may be due to the concentrated leucine dose interacting with sex hormones and driving up DHT levels. It’s worth a shot, though, everyone reacts differently to these sorts of things.

  4. David says

    While I agree that efforts should be made to consume all of your protein intake from ‘real’ food such as meats, dairy, nuts etc. Sometimes it just isn’t possible.

    I disagree with the author in saying that IGF-1 causes acne. Why? Because the body cannot absorb (and thus can’t USE) IGF-1 properly when taken in oral form (whey protein).

    As for the artificial sweeteners, colorings etc. The best way to avoid these is, of course, to acquire 100% Whey protein isolate (as mentioned in the article). Gold Standard Natural is a good alternative, however it contains some other ingredients that may cause acne. An excellent choice is 100% Whey protein isolate by the brand NOW FOODS.

    • Devin Mooers says

      Hey David! You’re right – sometimes you just need that protein shake. We advise egg white protein for those struggling with acne from whey protein. As to your comment about IGF-1, I haven’t heard that before – can you link me to any studies/resources about how oral IGF-1 might not be absorbed? I’m very curious to know more! That’s also not the only reason that whey triggers acne, since the pure insulinemic effects of whey spike your insulin and prompt greater release of endogenous IGF-1 (regardless of any IGF-1 present in the whey). I’ve experimented with low-temp-processed, 100% grass-fed whey protein but still have gotten acne from it – but again everyone reacts differently, so it’s always worth experimenting.

  5. Anthony Jackson says

    I’m 17, about 4 months ago I started lifting and taking whey protein, I eat a lot as well, but I started breaking out a lot, I’ve cut lots of things out of my diet including milk,as much sugar as I can, any junk food, and I wasn’t sure if coffee with sweetner was good or bad or not, but I use tropico gels and still have acne, I will definetely cut out the protein shakes and see the results, thank you.

    • Devin Mooers says

      Hey Anthony, definitely see how it goes by cutting out protein shakes. Coffee with sweetener is not the best either from a muscle gain or acne perspective – black coffee is better, but can still screw with your stress hormones a bit if you’re sensitive.

  6. Grace says

    I have been taking a mass gainer protein powder “Up Your Mass” for about 4 months now; In order to help gain weight, I have been drinking 2 shakes a day along with my meals. It has been breaking my face out tremdeously, as if I’m back to my teenage years. I been feeling embarrassed about my skin since Im trying to use less makeup ESP with all my sweating doesn’t help. Reading this article has helped make my decision to give up the mass gainer. Thanks! Hopefully, my acne gets better!!

    • Devin Mooers says

      Hey Grace! Whoa, sounds like a crazy experience with Up Your Mass. That gainer has barley (gluten), soy protein, whey/casein (dairy), vegetable oil, and a big carbohydrate hit at once, and overall sounds like a strong recipe for acne. Good idea to discontinue use of that! Keep me posted on how your skin improves!

  7. Aissa says

    So basically get your protein from food instead of powders? My entire face has been breaking out Im guessing from using Whey Protein as I read in this article and comments. Ive been getting facials and been to dermatologists and nothing clears it up. Not even hard core topical medications. How long after cutting out the Whey protein will it clear up? Does anyone know?

    • Devin Mooers says

      Exactly! No need for powdered protein, especially whey, since it tends to trigger acne for a lot of people. There’s no easy answer to the “when will it clear up?” question, though I wish there were! Whey protein is typically not the only food that causes acne – gluten, dairy, sugar, and vegetable oil are the top 4 “acne demons” we’ve identified in our research. Are you eating any of these? Have you had acne for a while, or are you just breaking out recently (maybe from the whey)?

  8. Jun says

    I just started working out a month ago and was taking whey protein shake religiously… until it triggered acne on my face and recently my neck! Have always had acne (but not too serious) which started to subside until I foolishly consumed whey protein.

    Thanks for your advice, I’ve since stopped drinking protein shakes and I scrolled through the comments, looks like I’ll try to find some egg white protein.

    • Sonia Carlson says

      Hey Jun, I’m glad you found out early on that whey is a problem for you – it’s definitely a common issue among weightlifters and other athletes. I hope you see big improvements by switching to the egg white protein!

    • Devin Mooers says

      Just wanted to chime in on this one too. Ha, I don’t think it was foolish! You’re just trying to get strong, I’m guessing. You also don’t have to pound down a shake right after your workout – you can wait 30-60 minutes, and let growth hormone surge for a while which helps build lean mass and repair your body, and then eat a meal after that. As soon as insulin kicks in, though (like after pounding down a whey protein shake, or worse, a mass gainer), growth hormone goes out the window since insulin blocks growth hormone, essentially. Insulin also builds muscle, but it ALSO builds fat. So waiting 30-60 minutes after a workout, THEN eating a solid meal of food with lots of protein, is also a great approach – then you don’t have to deal with expensive alternative protein powders, and you get more nutrition to boot.

    • Devin Mooers says

      Hey Pablo, based on my own experimentation, I wouldn’t recommend taking BCAAs. They seemed to give me some acne. That said, those sorts of self-tests are hard to do, and they’re not very scientific, so you could definitely give it a shot and see if your skin reacted badly or not. The main reason why I wouldn’t recommend it is because BCAAs are known to increase levels of some hormones, including insulin and testosterone. Generally speaking, I think it’s a better idea to get amino acids from whole foods like beef. Muscle-growth-enhancement supplements of all kinds tend to influence hormones that can be problematic for acne sufferers (whose hormones are out of whack to begin with). For muscle gain without acne, I generally advise lifting heavy (Starting Strength style) and eating lots of meat and some starch (sweet potatoes and white rice), and skipping out on whey protein, BCAAs, etc.

      • pablo g says

        thanks for your reply. i will stop taking bcaa’s as well as other supplements i am taking ( pre-workout and creatine). i stopped taking whey and dairy, but i still get a few pimples as well as some cystic acne on my neck. i seem to be getting a lot of ingrown hairs that turn to acne. i hope this will solve the problem.

        • Devin Mooers says

          Hey Pablo, I hope stopping these things helps clear up the remaining acne you’ve got. I wish workout supplements didn’t cause acne, but I just haven’t had good luck with them in general. Keep me posted on how it goes for you!

Leave a Reply

Your email address will not be published. Required fields are marked *

Current ye@r *