I think I narrowed down one thing I have been reacting to, I have been taking my supplements for some time now with a protein shake called Nature's Plus Spirutein. I had backed of the shake for almost a month. This week I decided to take the shake alone with almond milk and no other supplements. To my surprise within 30 minutes I became fatigued, sleepy, flt sedated, so weak had to lay down. Took 3-4 hours to recover. I was stunned, I was blaming the supplements all this time. The shake has a lot in it including spirulina, l-glutamine. I did a Google search and found a number of people reporting similar have similar symptoms. Anyone here have similar reaction to their protein shake?
I would be careful before jumping to conclusions and assuming - saying it's the "protein", or the "glutamine" in you shake that is making you tired...
Could also be any one of these OTHER ingredients:
Proprietary non-GMO protein blend (rice protein, pea protein, and soy [isolated soy protein and fermented soy]), Fructose, Di-Calcium Phosphate, Xanthan Gum, Vanilla Flavor, FOS (Fructooligosaccharides), Guar Gum, Psyllium, Maltodextrin, Potassium Citrate, Magnesium Oxide, Oat Bran, Microcrystalline Cellulose, Spirulina, Vitamin C, Vitamin E, Choline Birartrate, Inositol, apple pectin, Bee Pollen, Niacinamide, Vitamin A Palmitate, Zinc Oxide, Manganese Sulfate, Ferrous Fumarate, Calcium Pantothenate, Lecithin, Lemon Bioflavonoids, Papaya, Bromelain, Chlorophyll, Pyridoxine HCI, Riboflavin, Thiamin (Vitamin B-1) (as Thiamine HCl), Vitamin B-12, Ergocalciferol, Folic Acid, Biotin, Potassium Iodide, Chromium Chloride, Sodium Selenate, Sodium Molybdate
http://www.gnc.com/product/index.jsp?productId=2133797
Right of the bat I see one of the first ingredients and therefore a higher amount is "Vanilla Flavor" which is a dead give away for MSGlutamate. Almost ALL flavors including natural, are hidden forms of glutamates. They make me tired as hell.
Get a protein powder with NO additives and see if it makes a difference. I know for me it does.