GLP-1 induces FNDC5 expression in -cells via CREB, promoting WAT to BAT conversion
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The British Journal of Nutrition, 106 (4), 588595
Its absorption rate (the amount made available for the body to use) is 14% to 18%, much lower than carnitine found in foods
Study limitations Oral NAC is associated with gastrointestinal discomfort, nausea, and diarrhea, but these symptoms are generally mild and occur at similar rates in placebo groups, indicating that NAC is well-tolerated and safe for chronic use [108]