Intermittent Fasting Planner — Personalised Fasting Plan

Intermittent fasting (IF) doesn't speed up your metabolism or unlock magical fat-burning hormones — those claims are largely overhyped. What IF does reliably is reduce total calorie intake by compressing your eating window. With 8 hours instead of 14 hours to eat, most people naturally eat 200–500 kcal less per day without consciously dieting. That deficit produces the fat loss.

A secondary benefit is meal-frequency simplicity: two large meals instead of five small ones means less decision fatigue, less prep, and often better adherence. For people who struggle with portion control or constant snacking, IF can be transformative. For people who already eat well-portioned meals, IF adds little. The Intermittent Fasting Planner tells you honestly whether IF is likely to help in your specific situation.

The four most-studied protocols: 12:12 (12-hour fast / 12-hour window — basically no breakfast for night-time snackers), 14:10 (a gentle starting point), 16:8 (the classic — eat noon to 8pm), and 5:2 (5 normal days + 2 days at ~600 kcal). For beginners, 14:10 for two weeks then 16:8 is the highest-success on-ramp. Jumping straight to 18:6 or OMAD (one meal a day) almost always backfires.

Match the protocol to your life. Heavy lifters or athletes need food around training — a window that ends at 6pm but trains at 7pm is a mistake. Parents who eat dinner with kids at 6:30 should set their window 10:30–6:30, not 12–8. The Planner builds the schedule around your wake time, sleep time and training time so it actually fits.

IF is not for everyone. Anyone with a history of disordered eating, bulimia or restrictive eating patterns should avoid IF — the structure of restriction-then-permission can re-trigger old patterns. Pregnant or breastfeeding women, type-1 diabetics on insulin, people with certain medications, and anyone underweight should not fast without medical guidance.

Women of reproductive age sometimes report cycle disruption with aggressive IF (16:8+ daily). The fix is usually a gentler protocol (14:10 or 16:8 only on training days) and ensuring total calorie intake doesn't fall too low. The Planner asks about constraints upfront and adapts — it will recommend against IF entirely if your situation suggests it's a poor fit.

Week 1 is usually the hardest. Hunger spikes around the time you'd normally eat, energy may dip mid-morning, and you'll be hyper-aware of food. This is hormonal adaptation and resolves within 7–14 days for most people. Drink water, black coffee or tea liberally — they kill most cravings.

Weeks 2–4 are when the protocol either becomes effortless or reveals itself as a poor fit. If you're consistently hungry, low-energy or obsessing about food, IF is not your tool — try a different framework like 50/30/20 plate proportions or the Diet Optimizer macro approach. If by week 3 the eating window feels natural and you've lost 1–2kg, you've found your method. The Planner gives you milestone check-ins at days 7, 14 and 28 so you can decide based on data, not vibes.