Marks Daily Apple
Serving up health and fitness insights (daily, of course) with a side of irreverence.
4 Feb

A Primal Primer: Whey Protein

Whey Protein PowderWe’re long overdue for a good, solid post on whey protein. I include it in my Primal Fuel shake mix, a number of readers asked about it after last week’s dairy post, and it’s one of the more commonly used nutritional supplements around, so it’s a no-brainer of a post.

What is Whey?

Whey is a byproduct of cheese production. It’s that pseudo-clear liquid remaining after milk has been curdled and strained that used to be tossed aside as waste material. Today, we know that it houses an impressive array of proteins: beta-lactoglobulin, alpha-lactalbumin, and serum albumin. These are complete proteins, comprised of the essential amino acids central to protein synthesis and increased muscular hypertrophy. Our bodies can produce non-essential amino acids from lesser amino acids, but we cannot produce the essentials ourselves; we must eat quality protein sources. Whey is a naturally occurring, essential protein that satisfies the body’s protein requirements – hence its popularity.

Can Dairy-Sensitive People Use Whey Protein?

Whey contains trace elements of lactose, so the extremely intolerant may have problems digesting it properly. Because whey is, by definition, the stuff that separates from the casein when it curdles, it has even less casein (save for trace amounts), rarely enough to be noticeable to anyone but the most casein-intolerant. But that’s pure whey; whey protein powder has even less of both.

Lactose may pose a problem, but casein almost certainly will not.

Isolate vs. Concentrate vs. Hydrolysate

As for whey protein powder, you’ve got a couple options. Whey protein concentrate contains some fat and lactose, while whey protein isolate is pretty much pure protein with very little of the other dairy elements remaining. Concentrate is less processed and more whole, but has less protein. Isolate is about 90-94% protein, but it’s subjected to a more rigorous refinement process. Bodybuilders are drawn to the “purity” of whey isolate, lured by the moderately higher protein counts. Isolate is also considerably more expensive than concentrate, and the purported boost in beneficial effects on protein synthesis are overstated; drinking any kind of whey protein shake will have a beneficial effect on your muscle recovery and protein synthesis. If cost is not an issue, or you’re mildly sensitive to dairy, then isolate is your best choice. Otherwise, it’s probably fine to go with concentrate for most applications (or otherwise further you could just eat a steak instead).

Whey hydrolysate is predigested whey protein that’s easily absorbed and virtually free of any potential allergens, but it’s (in my opinion) horribly overpriced. Whey in general is already highly bioavailable and easily absorbed by our bodies, so absorption is rarely an issue with whey. Hydrolysate is great marketing. That’s about it. The elite of the elite – those hulking magazine cover superheros with tanned, smiling faces atop straining, veiny necks – may have actual cause to maximize protein absorption, but you guys definitely don’t need to fuss over that stuff.

Is it Primal?

Whey protein falls into the 80/20 category. It isn’t strictly Primal (and certainly not paleo) in that it wasn’t available to Grok, but it can be an effective, occasional high-protein meal replacement with most – if not all – of the potential allergens mitigated or negated. It’s an analog, a bit like dairy itself. If you can’t handle any dairy, skip it (or try whey isolate) and take the time to prepare a meal. If you can handle dairy without a problem, a whey protein powder is a pretty good way to shuttle nutrients into your body, especially if you’ve chosen to go the post-workout nutrition route  – which I usually don’t.

Going Primal means acknowledging both the limitations and the advantages of modern life. I wish I could laze around on the savannah for days following a successful kill. I wish I had ten hours of leisure time every day. The reality is that we’re a busy bunch of people, and if we’re truly serious about maximizing our quality of life, slamming down a quick protein shake so we can get to the office a little earlier might mean we can leave earlier, too, and get home in time for a date with the significant other, a hike at dusk, or an extra couple chapters on that great book we’ve been meaning to read. If that isn’t a feature of modern life that can help us follow the Primal ways more easily, I’m not sure what qualifies.

You want comments? We got comments:

Imagine you’re George Clooney. Take a moment to admire your grooming and wit. Okay, now imagine someone walks up to you and asks, “What’s your name?” You say, “I’m George Clooney.” Or maybe you say, “I’m the Clooninator!” You don’t say “I’m George of George Clooney Sells Movies Blog” and you certainly don’t say, “I’m Clooney Weight Loss Plan”. So while spam is technically meat, it ain’t anywhere near Primal. Please nickname yourself something your friends would call you.

  1. Beware of whey!!
    It’s harmless to most, but some find that ingesting it causes rashes, especially on the thighs.

    I love whey protein but found I’m one of the lucky people that are allergic. I thought the rash was poison sumac, but narrowed it down to the addition of whey protein to my diet. Several weight lifting forums confirmed that an allergic reaction is most often a thigh or torso rash.

    So if you’ve never tried it, try with caution, even if you’re fine with milk or other whey containing products.

    Andrea wrote on February 4th, 2010
  2. Thanks for the post Mark, what do you feel about the source of milk used to make whey and the processing techniques?

    On a side note, is there any valid reason to supplement with branced chain amino acids and glutamine? There seems to be research pointing to the anabolic effects of these taken during or immediately post workout.

    Kishore wrote on February 4th, 2010
    • There are definitely circumstances where BCAAs and glutamine are very useful. Because the BCAAs/Glutamine are broken down during gluconeogenesis that accompanies intense training, supplemental use allows the body to source them from the diet, rather than break down skeletal muscle to do so. In reality, it’s more of an anti-catabolic effect than a purely anabolic one, but the end result is the same. Glutamine is also useful for reducing intestinal permeability. Not Primal by any means, but useful for athletes/bodybuilders.

      Marek wrote on February 6th, 2010
  3. Question:

    I am not allergic to dairy of any kind. Or have this symptom with any dairy:
    But most of the time, when I consume whey, It gives me something similar to heart burn, but doesn’t last as long. And theres more of a sharp pain in my stomach associated with it.
    But it all goes away after about 10-30 minutes.
    It doesn’t happen every time though.

    What is causing this?

    wyatt22 wrote on February 4th, 2010
    • Maybe the quality of the whey and other ingredients in the powder might be the cause? If you see a long list of chemical ingredients, maybe it’s time to look for a better product.

      Kishore wrote on February 4th, 2010
      • i currenty use “ON gold standard” from all the research i’ve done it seams to be as good as any of the best out there.

        I’ve tried several different types.

        wyatt22 wrote on February 4th, 2010
        • The best is home made whey from organic raw milk ,try it it’s the easiest thing in the world to make and the bi product is cheese, !!very nice very nice!! quote Borat

          trent wrote on October 22nd, 2012
    • whey burps usually happens with gainers 2- 4 scoops per serving.

      too much too fast. try a half serving and eat it slower .

      Have a water chaser thats a large about of protein with none of its natural moisture or supporting tissue.

      alex wrote on August 8th, 2011
  4. What about egg white protein? I have been purchasing the You Shakes and have asked for egg protein instead of whey since I have had some problems with casein. Any thoughts? I have about 5 minutes for breakfast most weekdays, so I whip up a shake (egg protein, unsweetened cocoa, and a little stevia, sometimes some added cream). This keeps me full until lunch.

    lbd wrote on February 4th, 2010
    • I would also like to know how egg white protein stacks up against whey protein. I’m accustomed to egg white protein powder, but not wedded to it and will happily switch if the primal consensus tilts in favor of whey.

      Timothy wrote on February 4th, 2010
      • Hey guys, I’m not sure of the actual differences. But on Loren Cordain’s blog he specifically recommends egg white protein over whey protein.

        From the Q&A:
        “Q: I started the program and I was wondering if Whey Protein or protein powder in general is against the diet.

        A: Egg protein powder is a better option in order to avoid certain harmful whey proteins, specially if you suffer from an autoimmune disease. Whey protein also produces hyperinsulinemia (high insulin levels) which on the long run may produce insulin resistance and hence hormonal disruption.”

        and that is from http://thepaleodiet.blogspot.com/2009/11/paleo-diet-q-11409.html

        Matthew Odette wrote on February 5th, 2010
        • So that is why I have a hypoglycemic attack every time I try to eat whey protein! Thanks for the tip!

          Ailu wrote on February 5th, 2010
        • I used to use eggwhite powder in my protein shakes, but switched to WPI for one simple reason – it tasted disgusting! Also excessive (woteva that means) consumption leads to a biotin deficiency. I might add that the reason most people i know use WPI rather than WPC is the fat content (highly relevant for body builders). WPI is <1% whereas WPC is approx 8%.

          Brynn wrote on February 9th, 2010
  5. I’ve been using “Muscle Milk” recently after I got a free sample at my last triathlon. The stuff is amazing. The nutrient profile is designed to resemble breast milk (which may not matter, but it is), tastes much better than other protein supplements, and actually dissolves in water or milk, which other supplements don’t (which annoys me to no end). It also has some fat content, which most protein supps. don’t.

    Note: I am not affiliated with any supplement company, I just really like the stuff.

    Dave wrote on February 4th, 2010
    • Dave, I have used Muscle Milk before. Here’s a copy of the nutritional profile:
      EvoPro™(Calcium And Sodium Caseinate, Milk Protein Isolate, Whey Protein Isolate, Whey Protein Concentrate, Whey Peptides, Lactoferrin, L-Glutamine, Taurine), Lean Lipids™(Medium Chain Triglycerides, Sunflower And/Or Safflower Oil, Canola Oil, L-Carnitine), Maltodextrin, Resistant Maltodextrin, Fructose, CytoVite I™ Vitamin And Mineral Blend, Potassium Chloride, Fructo-Oligosaccharide, Natural And Artificial Flavor, Chocolate Cookie Pieces, Salt, Acesulfame Potassium, Sucralose, Soy Lecithin.

      The calcium and sodium caseinate is not the best form of casein. Except the MCTs the fats are from sunflower, safflower and canola.

      Kishore wrote on February 4th, 2010
  6. I have a question about brands. I believe that like vitamins, whey protein is not regulated by the FDA. That means that the label may or may not be accurate. Are all brands created equal?

    Klang wrote on February 4th, 2010
    • In Australia I have access to a whey protein concentrate and isolate by a company called Pure Nutrition. The whey protein comes from pasture-fed cows in New Zealand that are also hormone free. I am going to try some next week. They are on the internet.

      Angelina wrote on February 4th, 2010
  7. Lots of good questions already. I’ll try to do a follow up post next week to answer them.

    Mark Sisson wrote on February 4th, 2010
  8. Beverly products always ranked very high when I used suppliments. Muscle Provider is the best tasting protein I ever tried. FWIW.

    mikesic wrote on February 4th, 2010
  9. I’m much more of a ‘steak 1-2 hours after workout or continue fasting till before bed’ kind of guy myself.

    Recently made a protein shake Responsibly Slim, raw grass-fed milk, grass-fed cream, eggs and coconut milk, though – it was pretty fantastic!

    Aaron Fraser wrote on February 4th, 2010
    • I’ll second the responsibility slim. It’s a great 80/20 tool and tasty as all get out.

      Sandra1976 wrote on February 4th, 2010
  10. Thanks so much for this timely post. I was just searching this morning to see if whey protein isolate would be acceptable for me (I have a slight intolerance to casein). I’ve given up dairy, but do find protein shakes to be a convenient source of nutrition on my busiest mornings. Happy to read that I don’t have to give them up!

    Jenn F wrote on February 4th, 2010
  11. i recently bought whey protein through mercola, and then found out you can buy it direct from warrior milk for half the price. was annoyed, but now i know what to do next time. grass fed whey protein concentrate, tastes sublime.

    not to promote other products on mark’s board though, i’m sure the responsibly slim is great too ;)

    Mandy wrote on February 4th, 2010
  12. can you cook with whey? i have seen it used in lots of recipes. is it heatable?

    MELANIE wrote on February 4th, 2010
    • I have used it along with almond flour, coconut milk and eggs and walnuts to make pancakes – they came out well, and the whey protein seemed to fluff them up a little bit.

      Duncan wrote on February 4th, 2010
    • I’ve made individual “brownies” when I am desperate for baked goods…they are not exactly primal but hey…

      1 egg
      3-4 T melted butter
      1 T of sweetener (I use Sweet Fiber)
      1 T vanilla whey protein powder
      1 T Chocolate Powder
      1 T Coconut Flour
      Water if batter is too thick (from Coconut Flour)

      Mix ingredients. Put into ramekin or small container. Bake at 350 degrees for about 15-20 minutes. Eat.
      NOTE: If using sweet fiber – blend into the egg before adding liquids…it has a tendency to clump.

      Agi wrote on February 5th, 2010
  13. Any thoughts on pea protein? hemp protein? brown rice protein? etc. My body does not take well to whey so I’m curious to hear your thoughts on plant/grain based protein powders.

    Jordan wrote on February 4th, 2010
    • I don’t think proteins from plant sources score very high. But if you want to try a good brown rice protein that’s better than most out there, you can find it on sunwarrior dot com.

      Kishore wrote on February 4th, 2010
      • I recall reading a lot about hemp protein being pretty legit.

        Full-spectrum of aminos and all that.

        I’m not 100% sure – something I’m sure Mark will touch upon next time.

        Same Grok time, same Grok channel!

        Aaron Fraser wrote on February 4th, 2010
    • I’m interested in this as well. Maybe a comparison between protein powders in the future? I no longer consume grains, but I have wondered if there’s any downside to brown rice protein because it comes from a grain.

      Emily wrote on February 5th, 2010
  14. As with all dairy products, I dig whey protein. Two or three times a week I’ll have a shake with a scoop of Responsibly Slim a handful of berries and whatever else I have around… spinach, kale, pineapple, avocado. Sometimes I’ll throw in some creamtop milk too.

    Caveman Sam wrote on February 4th, 2010
  15. Whey protein and fish oil is my after-workout drink these days. I’ve been putting on a lot of muscle so I have no complaints! Good thing though, it’s not the tastiest of beverages.

    Darrin wrote on February 4th, 2010
    • what brand of whey protein and fish oil are you using

      SuperD wrote on May 10th, 2013
  16. Can anyone recommend a gluten-free, sugar-free whey protein powder? I like to keep protein powder on hand for crazy busy days or emergencies, but since diagnosed with gluten/casein intolerance, I’ve avoided them completely. Thanks.

    Suzan wrote on February 4th, 2010
    • If you’re in the UK, myprotein .co.uk sell good, unflavoured protein powders.

      goo.gl/mjtS

      Caveat here, in their own words, “Ingredients: Undenatured Whey Protein Concentrate, instantising agent (soy lecithin) [a very small amount is added].”

      Harpo wrote on February 4th, 2010
    • Species Nutrition makes one.

      Barb wrote on February 11th, 2010
  17. Whats the deal with Mark’s brand of shakes having an artificial sweetener in it?

    Ben wrote on February 4th, 2010
    • Sucralose is considered safe unlike Aspartame.

      Kishore wrote on February 4th, 2010
      • Aspartame was condsidered safe at one point in time

        Dal wrote on February 4th, 2010
      • They have found it to shrink the hypothalmus in the brain and other issues. THere is little research because people assume its safe because it comes from sugar but it is in no way sugar. Go with stevia for sure.

        kev wrote on February 4th, 2010
  18. I am trying to get some pure WPI or WPC but cannot find any that does not have soy lecithin added.

    Is this something to be avoided?

    Lumpee wrote on February 4th, 2010
    • I bought my WPI from bulkfoods.com (it’s in their “Natural Health” section). It is 100% whey protein isolate (90% protein) with no other ingredients. It dissolves well without the need for any emulsifiers and takes good. I have no complaints with the product.

      Greg wrote on February 4th, 2010
      • Thanks for that tip, went to bulkfoods.com and got it all. WPI, Creatine, Dextrose, and Cocoa Powder (flavor the WPI) ALL for just (barely) over $100 including shipping. AWESOME compared to all the research I have done all day.

        Mike wrote on July 2nd, 2010
    • Bluebonnet WPI—no soy lecithin, which I try as best I can to avoid, although it can be difficult. It’s even in Udo’s oil, which I won’t be giving up…

      Graham wrote on August 15th, 2011
  19. Mark-

    Do you have any thoughts on the link between Crohn’s Disease and the bacteria Paratuberculosis, which has been found in Cow’s Milk? Could the bacteria also be found in Whey? It seems that some doctors and scientists are certain that this bacteria survives pasturization and is involved in Crohn’s Disease. The research linking Dairy to Crohn’s Disease seems alarming to me, particularly with most of our children taking dairy regularly, yet most people are uninformed about it. Below is a link to the most comprehensive article on the subject that I’ve found, if anyone is interested. I noticed that you mentioned the possible connection between dairy and Crohn’s in your (outstanding) book, and thought maybe you had an opinion about it? Thanks!

    http://www.mad-cow.org/00/paraTB.html

    Rob wrote on February 4th, 2010
    • I believe that RARELY it can survive pasteurization and its only an issue when it does. The bact is found in some raw milk but heres the kicker… if you consume raw milk your body will build up a tolerance to this bacteria and then you will not have any IBS/Crohn’s/UC (I cant rememer where i read this -sorry). This and the fact that raw milk has several inherent bacteria, which MAY disallow for the growth or survival of any Mycobaterium. Its when this bacteria survives pasteurization and is allowed to set up a resident infection that the bowel issues begin. Treatment with a specific antibiotic combination seems to be looking VERY promising in ridding the bowels of this bacteria and therfore allowing the repair and anti-inflammation of the gut as a whole.

      As for the whey, I would HIGHLY doubt that the Mycobacterium could survive the drying process. To survive in the whey powder they would have to for spores… which they dont.

      Tara tootie wrote on February 5th, 2010
      • “RARELY it can survive pasteurization” — some more info on this:

        “[…] ‘Most medical researchers studying Crohn’s disease thing it’s an autoimmune disease. Nevertheless, a core of researchers continue to find troubling evidence of links between Johne’s and Crohn’s disease.’ […] ‘When the evidence is considered, it’s difficult to argue the case that the organism [Mycobacterium avium paratuberculosis (Map)] is not involved. It is certain that M.paratuberculosis can be pathogenic in humans and that it’s very likely that it causes a significant portion—even a substantial portion–of Crohn’s disease in humans’ […] The FDA and the dairy industry argue that pasteurization is the only way to completely rid milk of pathogenic organisms; but the Johne’s bacterium survives pasteurization! […] In response the industry is moving slowly toward mandatory testing and disclosure […] and ultrapasteurization involving higher temeratures to kill the organism.”

        – The Untold Story of Milk, 2009 ed, p.239

        jeff wrote on November 3rd, 2010
        • (sorry for typos, I typed this out from the book)

          jeff wrote on November 3rd, 2010
        • How interesting. I’m battling crohn’s right now and trying to eat only the purest food. I haven’t had dairy in years and am still battling it. If you have any other information that may be helpful I would really appreciate it. I am trying to get myself off of western medications completely but always encounter a serious flare up. Thanks for posting!

          Jessica wrote on February 8th, 2011
  20. I love whey. Some chocolate flavoured whey with some coconut milk is where its at!

    BigD wrote on February 4th, 2010
  21. Don’t whey powders have oxidized cholesterol?

    Gena Miller wrote on February 4th, 2010
    • Cold processed whey does not have them. That means whey made under 120F and not exposed to chemical processing that denatures fat and protein. Most commercial powders have oxidized cholesterol, but you can buy a bucket of it for $20!

      Kishore wrote on February 4th, 2010
    • I supplement with occasional cold-processed whey protein from grass-fed cows, which I feel is the best choice for a protein supplement. It *is* more costly but I definitely feel like I’m getting more out of it compared to the highly processed whey exposed to extremely high temps.

      Elizabeth wrote on February 5th, 2010
    • Whey protein concentrates do contain cholesterol (30mg in a 30 gram serving for the brand I formerly used), which is almost certainly oxidized during the spray drying process. Whey protein isolates do not contain cholesterol (listed as 0mg per 30 grams on the brand I now use). I don’t mind eating cholesterol, but avoiding the intake of oxidized cholesterol is the primary reason I pay the premium for isolate instead of using concentrate.

      Michael Watt wrote on February 5th, 2010
  22. I recently read on someone’s blog about the merits of whey from grass-fed cows versus conventionally fed cows. It sounded like a shameless product promotion. Mark, is there a material difference?

    Brian R wrote on February 4th, 2010
  23. Check out the canola proteins that are on the verge of being accepted by the FDA for human consumption. Extremely high protein content with many advantages over soy and whey.

    http://www.burcon.ca/

    Darryl Jones wrote on February 4th, 2010
  24. I just want to echo some of the the comments. Is whey from a grass fed source superior or does the processing mitgate any benefits.

    Second, what does predigested actually mean? I’ve heard better absorbtion, but don’t you debunk that argument a little while talking about concentrate and isolate?

    Jason wrote on February 4th, 2010
    • @Jason,

      1. The whey protein from an individual cow has a predetermined amino acid sequence. The cow’s diet will not affect the whey protein at all. It will affect the fat content of the whole milk, especially the 0-6/0-3 ratio. However, nearly all of the milkfat is removed in the making of most whey powders. If you’re buying the powder for the protein, don’t pay extra for grass-fed.

      2. RE “predigested”: amino acids are linked together by peptide bonds to form proteins. Predigested proteins have some of the peptide bonds broken, which turns them into a mixture of amino acids, di-peptides, tri-peptides and oligo-peptides. This makes them absorbed more rapidly in your small intestine. However, if you have normal intestines, without celiac disease or other protein sensitivities, you should be able to digest whey protein without difficulty. Again, most people should not pay extra $ for “predigested” protein.

      Ed wrote on February 4th, 2010
  25. Hi Mark. Love the blog, love the book, been living PB faithfully for over a month now and feeling fantastic. Thanks!

    I’d be really interested to see a follow-up to Gena’s question in the future post you mentioned.

    There seems to be a lot of information available about some very detrimental effects from “oxidized cholesterol”, including from some sources who would generally agree with eating Primal. It’s allegedly related to the processing done to extract the whey protein from the original dairy products. Would love to hear your take on the issue.

    George wrote on February 4th, 2010
  26. I enjoy Whey Protein in my coffee in the morning. Fast way to get 25 g of protein, but it also acts as a creamer of sorts for me. Also like a Latte. (Sorry Grok – you never knew about those, did you?)

    jpickett1968 wrote on February 4th, 2010
  27. A healty procesed food is still just procesed food,and seeing that i’m trying not to eat that stuff i would just rather spend the extra time and get my protin the old fashioned way, by eating a good piece meat. If you think that your to busy take a look at how you are spending that time, i thought i was busy but i discoverd that my problem was just shitty time managment, i fixed that and now i have all the extra time i always wanted to do all the stuff i thought i would never be able to do.
    Grok On

    JUPITER BOONE wrote on February 4th, 2010
  28. Whey to go!! ;)

    Jamie wrote on February 4th, 2010
  29. Very timely post Mark. I was very curious about Whey protein since it came from milk. I lack protein so I have been supplementing my diet with whey protein after a workout.

    I think having it occasionally is fine with me as in 3x a week. When I have the money I will start to purchase more quality meats!

    Todd Dosenberry wrote on February 4th, 2010
  30. I think the main point is that although protein supplements aren’t stricly primal; they are a good alternative to add to your food intake if you haven’t got other options. I myself always break my IF with a nice shake made with vanilla protein powder, a tsp of Greens+ and some frozen blueberries and strawberries. It gives me a real rush of phyto-nutrients and actually lets me go another few hours before I want some solid food.

    Mike Cheliak wrote on February 4th, 2010
  31. Thanks for the solid post, Mark. I was running low on whey, so it was very timely. I will definitely look for your follow-up next week.

    ThePrimalBrett wrote on February 4th, 2010
  32. I really like the way the site has been going lately. Nice short, sweet and sensible post Mark.

    Nothing wrong with some protein supplementation, especially in overly active athletes or those looking to reduce calories temporarily for weight loss reasons.

    For the average caveperson… real food is fine.

    Grok wrote on February 4th, 2010
  33. I’m curious if you have any specific brands of whey to use? Might want to address this in the follow up. I’ve been looking for a good minimum-processed, organic, grass-fed whey without any added fillers or chemicals.

    Jacob Cassidy wrote on February 4th, 2010
    • Check out True Whey (google it) – it’s very expensive though.
      I am in the UK so I use MyProtein for my bulk whey needs – very good company and excellent product range.

      Indiscreet wrote on February 5th, 2010
  34. Mark thanks for the post.
    I think Whey is the fast digestion protein, Casein is the slow one.
    Could you recommend when to take each one?
    Thanks

    Fady wrote on February 4th, 2010
  35. Thanks for the post Mark. The only problem now is finding one that is good enough quality. It seems to be hard here in Australia to find good products. I have found a grass-fed, hormone free whey, but I still do not know whether or not it has been cold pressed. When they do not advertise these things you are never sure whether they are telling the truth or not.

    Angelina wrote on February 4th, 2010
  36. I definitely agree that this is a great 80/20 tool and will use it in the near future.

    Richard Shelmerdine wrote on February 5th, 2010
  37. Great post Mark!

    I still wonder why your formula contains soy protein, fructose, artificial flavors,… Why not just sell a pure whey concentrate from grass fed cows without all the additives? If one wants flavouring and added vitamins one can still mix it with fruits like berries, bananas,…

    Longquan wrote on February 5th, 2010
  38. Every time I try having Whey protein Isolate I feel sick to my stomach and have the same type of hypoglycemia attack that I experience when I eat unrefined grains. Why is that? Does anybody know?

    Ailu wrote on February 5th, 2010
    • Oops, I meant “refined grains”.

      Ailu wrote on February 5th, 2010
  39. What about beef protein isolate?

    Lima wrote on February 5th, 2010
  40. http://www.fitnessatlantic.com/whey_protein_hard_facts.htm

    Just take a look at this, this whey protein things is confusing me.

    Whey protein concentrate (WPC):
    Is the cheapest whey protein
    Is denatured – the beneficial protein structures are destroyed
    Contains higher amounts of cholesterol, oxidized to a large degree

    Hydrolyzed whey protein:
    Has hypoallergenic properties
    Is partially predigested – the degrees of predigestion vary
    Its amino acids are more readily available, one of them is known to have excitotoxic properties (glutamate)
    May play a role in excitotoxin-induced brain damage

    Ion-exchange whey protein isolate:
    Has low if any amounts of lactose, fats and cholesterol
    Many of the native whey protein structures are destroyed
    It is denatured to a large degree
    Beta-lactoglobulin globulin is present in higher quantities, which may lead to allergies

    Microfiltered whey protein isolate:
    Has low if any amounts of lactose, fats and cholesterol
    Retains its native proteins intact
    Is twice as expensive as WPC and ion-exchange protein
    Promotes muscle repair and growth
    Strengthens the immune function
    Has detoxifying and antioxidant properties

    Robert wrote on February 5th, 2010

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