can l carnitine and creatine be taken together L-carnitine, whey protein effective for strength training Creatine vs L-Carnitine: Which Supplement

however, more research is needed to further deter-mine if exercise increases the need for folate and vitamin B-12 6 Dosage for Pre-Workout Given the lack of successful studies, there is no recommended dosage for vitamin B12 as a pre-workout aid Pre-workout formulas supply anywhere from 1.2 to 50 mcg of vitamin B12 per serving Standalone vitamin B12 supplements offer doses ranging from 500 to 6000 mcg Side Effects Vitamin B12 may cause diarrhea and other minor side effects in some people, but is otherwise perfectly safe

PMID 16731630

The theoretical extension of this rationale to retatrutide is scientifically plausible but remains exploratory

10.1038/nrdp.2018.10 40 KatoG