Type 2 diabetes & pre-diabetesNo single ideal macro split [8]. Non-starchy vegetables, pulses and whole grains; minimal added sugar and refined grains; similar carb portions across meals; we leave out high-GI foods (juices, white rice, maida, pineapple). Aim for ≥5% weight loss. On insulin or sulfonylureas, coordinate deficits with the doctor (risk of hypoglycaemia).
PregnancyEnergy: no weight loss. From the 2nd trimester, add 350 kcal a day to maintenance, plus 9.5 g protein a day (2nd trimester) or 22 g (3rd trimester) [5].
Food: no fish or seafood (mercury), raw or undercooked eggs and meat, raw sprouts, unpasteurised dairy, liver, raw papaya, caffeine or alcohol; iodised salt; small, frequent meals.
BreastfeedingEnergy: add 600 kcal and 17 g protein a day while the baby is 0–6 months, or 520 kcal and 13 g from 6–12 months. No weight loss for the first 2 months; after that, gentle loss only, never below 1,800 kcal a day [5].
Food: about 3 litres of fluid, protein and calcium at every meal, low-mercury fish 2–3 times a week, caffeine under 200 mg, no alcohol.
Blood pressure & cholesterolSalt under 5 g a day [12]; DASH-style meals rich in vegetables, fruit, pulses and low-fat dairy; saturated fat under 10% of energy, no trans fats or vanaspati; soluble fibre (oats, pulses) [4].
Fatty liver (MASLD)7–10% weight loss improves liver fat and inflammation [13]. Mediterranean-style pattern; no sugary drinks; avoid alcohol.
HypothyroidismLevothyroxine on an empty stomach, 30–60 minutes before food; keep calcium, iron and soy at least 4 hours apart [14]. Cooked cruciferous vegetables in normal amounts are fine with adequate iodine.
Iron-deficiency anaemiaGreen leafy vegetables, pulses, eggs, meat and fish; vitamin C foods (lemon, guava, amla) with meals; tea and coffee kept an hour away from meals [4].