The science of 16:8, 14:10, 5:2 and which protocol suits your eating culture - whether you eat dinner at 6 in Stockholm or 10 in Mumbai.
Intermittent fasting (IF) is not a diet - it is an eating schedule. You compress your eating into a window (commonly 8 hours) and fast outside it. The most studied protocols are 16:8 (16 fasted, 8 eating), 14:10, 18:6 and the 5:2 (two low-calorie days a week).
Two reasons. First, most people naturally eat less when their eating window is shorter - there is simply less time to over-snack. Second, the longer fasting period lowers insulin, allowing the body to access stored fat more easily. Studies show 3-8% body weight loss over 8 to 24 weeks.
16:8 fits the Indian schedule beautifully. Skip breakfast or finish dinner by 7 PM and you are already on a 12-14 hour fast. Indian dinner-eating culture, where families eat together late, often makes a fasted morning the easiest version.
Pregnant women, people with a history of eating disorders, type 1 diabetics, those on multiple diabetes medications and growing teenagers. Women with PCOS and stress-driven cortisol issues should ease in gradually with 12:12 or 14:10 first.
Week 1: 12 hours fasted, 12 hours eating. Week 2-3: 14:10. Week 4 onwards: 16:8 if it feels good. Drink water, black coffee or plain tea during the fast.
Want this advice tailored to your body and lifestyle? Book a 20-minute consultation with a registered dietitian.