I'm already maintaining a low BMI/BF% and from reading Stephan's latest posts on carbohydrates, I've decided a low-fat diet might not be so bad, and to try it. I have no issues with carbohydrates e.g. wheat and not diabetic.
I want to cut down on protein costs, so it seems that if I buy a low-fat protein powder in bulk, e.g. Isopure, then I could save on the cost per gram protein. I'm not allergic to dairy, and whey protein seems to have some beneficial qualities.
What might be the long-term consequences of replacing the usual protein with whey/casein protein powder instead? How would you know if you're deficient in something, what health markers or lab results would you look at? Do you think a protein powder-based diet is unsustainable?
I've maintained my diet and marginally reduced my weight since I asked this. It was a nice experiment. Works for me but not everyone. Interesting nobody could answer my second question.
Whey protein powder offers zero satiety. I use it, I think its effective for sneaking in more protein throughout the day but it offers no feeling like food.
Right on every whey bottle/canister I've ever found it says "Do not use a sole source of nutrition."
I would say only use it in the way its been designed to be used: as a supplement to your food intake.
here is what I use jsyk: http://www.amazon.com/gp/product/B000QSNYGI
In my opinion, protein powder is a false economy.
There are a myriad of micronutrients found in meat (copper, B12, choline, zinc, selenium, niacin to list just a few), especially organ meat (which tends to be extremely cheap) that are missing from protein powder. Protein powder with a very expensive multivitamin would in many cases be a poor substitute for a very cheap biweekly meal of beef liver.
The balance of amino acids in protein powder is poor. Protein powder lacks the (so-called inessential) amino acids like glycine, proline, alanine e.t.c. which are consumed in balance on a whole foods diet.
Equally, I would caution against consuming sweetened protein powder on a daily basis. Even "natural" and "safe" sweeteners like stevia still exercise a potent effect on our brains/appetites, simply by virtue of their sweetness.
As an occasional on the go fallback, protein powder is just fine, but if you're looking for optimal health/wellbeing then I wouldn't advise relying on it as a staple.
Also, paying for multiple lab tests to determine the possible damage caused by your austerity diet won't exactly be cheap either. Think longer term.
You will end up eating more protein then you currently do now.
Protein powder does not fill you up or make you feel full, even when you eat the same amount of food. When I used to follow the zone, (years ago) if I made a shake for breakfast I was starving 2 hours later, if I ate real food (paleo style) I would be fine at least until 12 if not longer. (Eating breakfast at 6-7am)
Honestly to use protein powder as a main staple in ones diet, seems very unsustainable just because of the health issues with constantly spiking your insulin levels and Whey Protein will do that a lot.
In a post workout setting if you have the LBM you want I am for protein shake, other than that you should really stick with eating real food, as spiking your insulin levels is just asking for health issues down the road.
Interesting that this question is targeted to a group that I understand to generally follow the Paleo diet as you are asking very non-Paleo questions. That said, I have about 4 pounds of "high quality" whey isolate in my cupboard that you can have. I don't ever plan to touch the stuff again.
agree most protien powders have far too many additive and flavour enhancers and how much of it is actually absorbed - you lose the synergy of other nutrients by using it.Better to get it from whole food or if you have to supplement go to the highest natural source with no anti nutrients. The best whole source satiating, amino balanced in my opinion by far is sacha inchi powder. it's got no additives - is 63 % highly digestible - so you absorb 99% of what you eat - and goes suprisingly well with cacao powder and coconut sugar(low gi sugar packed with vitamins and minerals - particially good if youre also working out) and your choice of milk. This makes a great homemade 100% natural chocolate drink that is energy boosting, full of feel good tryptophan and all the other aminos, vitamins and minerals and polyphenols - high in potassium and magnesium - eliminating the need for sports type drinks and tastes great. http://www.matakanasuperfoods.com/ms/products/sacha-inchi-protein-powder.html
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