What science says about ritual fasting

Intermittent restriction of eating windows has a reasonable evidence base for metabolic markers in healthy adults. Traditional vrath patterns — one meal, fruit and milk, sunrise to evening — sit close to that pattern.

What the evidence does not support is fasting as a treatment for disease, fasting during pregnancy, or fasting alongside insulin and certain medications without medical supervision.

The honest position: the tradition and the research agree on rhythm and moderation, and the tradition never claimed to be a clinic.