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This results in reduced food intake, delayed gastric emptying, and improved satiety

When you take a massive dose of Vitamin B12 (such as a 1000 mcg pill), that 1% absorption rate allows about 10 mcg to enter your bloodstream [6] [8]

The compound is a small molecule rather than a peptide

EVIDENCE GRADES Lau 2021 Lancet dose-dependent placebo-subtracted weight loss to ~10.8% at 26 weeks

It is not about replacing training, food, or recovery fundamentals

However, if these vasodilators enter the systemic circulation, they could contribute to ME/CFS symptoms such as fatigue, flu-like symptoms, pain, fever, and sleep disturbances, similar to the effects observed when vasodilators spill over in dysmenorrhea (346)