Does biotin increase your appetite? Biotin may be helpful in regulating blood sugar and may aid in fetal development, although more research is needed. Too much biotin has never been shown to be harmful (unless you’re pregnant), but it can produce false lab tests. There’s no evidence that biotin can cause weight gain or weight loss.
Why does biotin make you gain weight? Does biotin cause weight gain? No, there is no evidence to suggest taking biotin supplements can lead to weight gain. In fact, biotin is sometimes touted as a weight-loss supplement.