I was helping my buddy with some dietary changes. When reviewing breakfast he mentioned he supplements with glutamine to lower cortisol in the morning. I've never heard that before? Does glutamin help with cortisol?
Glutamine can in some cases lower cortisol catabolic effects on the autonomic nervous system. Need pretty high doses.........I have not found it that helpful. Body builders love this but I dont see big effects.
Wouldn't some sweet potato do the same thing? Isn't cortisol principally involved in raising blood glucose and is catabolic because it's scavenging glucose from muscle tissue? Seems like repleting glycogen stores with starch immediately upon waking would shut down cortisol release and muscle catabolism.
The only study I can find that claims this result doesn't seem well controlled to me: Increased plasma bicarbonate and growth hormone after an oral glutamine load. So I would hesitate to cite it as fact.
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