25+ science-backed diet plans for men and women — fat loss, weight loss, muscle gain, body recomp, keto, vegan, intermittent fasting, and special therapeutic diets. Full meal plans, macros, food lists, and gender-specific variations.
These plans create a 20–25% caloric deficit below your TDEE while keeping protein high (35–40%) to preserve lean muscle. Target: 0.5–1kg fat loss per week. Combine with 4–5 days of resistance training and 2–3 cardio sessions for maximum results.
Slower and more sustainable than aggressive fat loss. These plans build long-term habits, prioritise balanced nutrition, and prevent rebound weight gain. Target: 0.25–0.5kg per week. Suitable for anyone wanting permanent results over quick fixes.
These plans create a 10–20% caloric surplus above TDEE with protein at 1.8–2.5g/kg to fuel serious muscle growth. Combined with progressive overload training, expect 0.25–0.5kg lean muscle gain per week. Gender-specific calorie targets below.
The holy grail — losing fat while building muscle simultaneously. Works best for beginners, people returning after a break, and those carrying significant excess fat. Eat at maintenance calories with very high protein (40%+). Progress is slower but body composition dramatically improves.
Ketogenic diets restrict carbs to under 20–50g/day, forcing the body into ketosis — burning fat as its primary fuel source. Benefits: rapid fat loss, reduced appetite, improved mental clarity, better blood sugar control. Allow 2–4 weeks for full keto-adaptation before judging results.
IF restricts eating to set time windows rather than changing what you eat. This naturally reduces calorie intake, improves insulin sensitivity, boosts growth hormone, and supports fat loss without obsessive calorie counting. Best combined with high-protein eating within your window.
Plant-based plans can fully support fat loss and muscle building when well-planned. Key supplements for vegans: B12 (essential), Vitamin D3 (algae-derived), omega-3 (algae oil), zinc, iodine, and calcium. Combine rice + legumes for complete amino acid profiles.
Diet approaches for specific health conditions and life stages. Always work with a doctor or registered dietitian when following these plans for medical conditions.
Side-by-side overview of every approach on this page.
| Diet plan | Goal | Calories | Protein | Carbs | Fat | Difficulty | Timeline | Best for |
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Choose foods from the right column for your goal.
Understanding macronutrients is the single most important concept in nutrition. Everything else builds on this.
The most important macro for body composition. Builds and repairs muscle, keeps you full longer than any other macro (thermic effect = 25% of protein calories are burned digesting it), and supports every cell, enzyme, and hormone in your body. You literally cannot build or maintain muscle without adequate protein.
Primary fuel for the brain and muscles during intense training. Not inherently fattening — excess total calories cause fat storage, not carbs specifically. Complex carbs (oats, sweet potato, rice) digest slowly and provide sustained energy. Spike insulin with fast carbs only strategically around training. Low-carb diets work for fat loss but aren't required.
Essential for testosterone and oestrogen production, joint lubrication, brain function, and absorption of vitamins A, D, E, and K. Never drop below 0.6g/kg bodyweight — this will crash hormones. Focus on unsaturated fats. Saturated fat in moderation is fine. Trans fats (hydrogenated oils) should be eliminated completely.
Every diet plan works 10× better with the right training programme.