Anonymous25 days ago
Scientific evidence suggests that a 12-hour overnight fast offers modest metabolic benefits — including triggering the body's fat-burning "metabolic switch" and supporting circadian alignment — but falls short of the dramatic health claims made by the wellness industry. Longer fasting windows of 14-16 hours show stronger clinical results, though a late-2025 study found no metabolic benefit from fasting without caloric reduction, raising questions about whether the benefits stem from fasting itself or simply eating less.