How to Choose a Diet for Your Health Condition

To choose a diet for your health condition, start with the main thing your condition is sensitive to: carbohydrates for diabetes, salt for high blood pressure, saturated fat for cholesterol, protein and potassium for kidney disease, and purines for gout. Build on a healthy base of vegetables, whole grains and pulses, and if you have two conditions, follow the stricter limit.

Our free diet plan maker for health conditions does this for you. Pick one or two conditions, add your details, choose desi or Western food and vegetarian or not, and it builds a 7-day plan with portions, a grocery list and the limits that apply to you. It runs entirely in your browser.

What do all condition diets have in common?

Almost every medical diet starts from the same healthy base:

• Plenty of vegetables and fruit (with exceptions noted below)
• Whole grains instead of refined ones
• Pulses, fish, poultry and plant proteins more than red and processed meat
• Unsaturated oils instead of ghee, butter and vanaspati
• Less salt, added sugar and ultra-processed food

The differences are in the details, and those details matter.

How do the main condition diets differ?

• Type 2 diabetes and prediabetes: carbs spread evenly through the day, about 40 to 45% of calories, high in fibre; sweets and sugary drinks kept to a minimum. Read the diabetes diet chart.
• High blood pressure: the DASH pattern, with sodium under 2,300 mg and ideally 1,500 mg, plus potassium-rich fruit and vegetables. See the DASH diet guide.
• High cholesterol and heart disease: saturated fat around 6% of calories, more soluble fibre (oats, barley, pulses), nuts and oily fish. See foods that lower cholesterol and the heart patient diet plan.
• Fatty liver: gradual weight loss of 7 to 10% if overweight, almost no added sugar or sugary drinks, no alcohol. See the fatty liver diet.
• Chronic kidney disease (not on dialysis): moderate protein, about 0.6 to 0.8 g per kg body weight, sodium about 2,000 mg, and potassium or phosphorus limits only if your blood tests show you need them. See the kidney disease diet guide.
• Gout: fewer high-purine foods (organ meats, some seafood), no sugary drinks, little alcohol, plenty of water. See the gout diet.
• PCOS: lower-GI, high-fibre carbs with protein at each meal, and weight loss of 5 to 10% if overweight. See the PCOS diet plan guide.
• Hypothyroidism: a normal balanced diet, with timing around your thyroid tablet. See the thyroid diet guide.
• IBS: a temporary low-FODMAP trial, then reintroduction. See the low-FODMAP beginner's guide.
• Gestational diabetes: at least 175 g of carbohydrate a day, spread over meals and snacks, and no weight-loss deficit. See the gestational diabetes meal plan.

What happens when you have two conditions?

Many people live with more than one condition, such as diabetes with high blood pressure, or diabetes with kidney disease. When combining diets:

• Take the stricter limit. If one diet allows 2,300 mg of sodium and the other 1,500 mg, aim for 1,500 mg.
• Keep every "avoid" list. Something one condition avoids stays off the menu.
• Watch for conflicts. DASH encourages potassium-rich foods like bananas, potatoes and tomatoes, but kidney disease may require limiting potassium. Gout limits some proteins while anaemia needs iron-rich foods.
• Protein can conflict. Diabetes plans often include more protein for fullness, but kidney disease needs a moderate amount. In that case the kidney limit comes first.

The diet plan maker applies these rules automatically and shows a warning for tricky combinations. Still, these are exactly the cases where a registered dietitian is most valuable.

How do I know which numbers apply to me?

Your blood tests decide a lot. HbA1c guides diabetes plans, a lipid profile guides cholesterol targets, and potassium, phosphorus and eGFR guide kidney diets. You can understand your report with the free blood test checker before you see your doctor, then ask which limits apply to you.

What should I do before starting?

1. Talk to your doctor if you take insulin, diabetes tablets that cause low sugar, warfarin, diuretics or potassium-affecting medicines, because diet changes can change how they work.
2. Use your own calorie target from the calorie calculator, not a generic number.
3. Change a few things at a time and track your results.
4. Recheck your blood tests at the interval your doctor recommends.

Who should not use a generic plan?

People on dialysis, pregnant women, children and teenagers, older adults with weight loss or poor appetite, and anyone with an eating disorder need individual advice. Dialysis diets in particular are very different from early kidney disease diets.

Do condition diets work with desi food?

Yes. Daal, sabzi, roti, dahi and grilled tikka fit almost every condition diet. The usual changes are smaller rice and roti portions for diabetes, less salt and achar for blood pressure, mustard or olive oil instead of ghee for cholesterol, measured daal and meat portions for kidney disease, and fewer organ meats for gout. The diet plan maker offers South Asian, Western and mixed menus so you don't have to give up familiar food.

How often should a plan be reviewed?

Review your plan whenever your blood tests, weight, medicines or symptoms change, and at least every few months at first. Bring your food diary to appointments; it helps your doctor or dietitian see what works and what needs adjusting.

Where can I start?

Open the diet plan maker for health conditions, choose your condition or two, and print the plan to discuss with your doctor or dietitian at your next visit.