I recently drank a pre-workout drink at my gym and then noticed that it said don't drink if you have thryoid disease. I didn't feel any side effects but I was wondering why I shouldn't be drinking it. I have very mild hypothyroidism. The ingredients in the drink are:
Arginine Alpha-Ketoglutarate, Creatine Monohydrate, Beta Alanine, Caffeine, 1,3-Dimethylamylamine (Geranium [Stem]), Schizandrol A
Could any of these ingredients cause harm?