How to Build Your Own Diet Plan for Weight Loss, Step by Step
Six steps from estimating your calories to adjusting after two weeks, with worked examples for a woman and a man.
If you would rather build your own plan than follow someone else’s, this guide gives you the arithmetic and the method. For the principles behind it, read our complete beginner’s guide to a diet plan for weight loss first.
1Estimate Your Maintenance Calories
Maintenance is the energy you burn in a day. A widely used estimate is the Mifflin-St Jeor equation for your resting burn (BMR), multiplied by an activity factor.
BMR: men = 10 × weight (kg) + 6.25 × height (cm) − 5 × age + 5; women = 10 × weight (kg) + 6.25 × height (cm) − 5 × age − 161.
| Activity level | Typical week | Multiply BMR by |
|---|---|---|
| Sedentary | Desk work, little exercise | 1.2 |
| Lightly active | Some walking, light exercise 1–3 days | 1.375 |
| Moderately active | Active job or exercise 3–5 days | 1.55 |
Pick the factor that matches your usual week, not your best week. If you are unsure, choose the lower one.
2Set a Moderate Deficit
Subtract roughly 300–500 kcal from maintenance. That usually produces the 0.5–1 kg a week pace that is realistic and sustainable. The old rule that 3,500 kcal equals one pound of fat overstates long-term loss because your body adapts as you lose (Hall et al., Lancet, 2011), so treat the deficit as a starting dial, not a guarantee. As a safety guide, most advice is not to go below about 1,200 kcal a day for women or 1,500 for men without medical supervision.
| Worked example | BMR | Maintenance (×1.375) | Deficit | Starting target |
|---|---|---|---|---|
| Woman, 32 y, 70 kg, 160 cm | 1,379 | ≈ 1,900 | −400 | ≈ 1,500 kcal |
| Man, 38 y, 90 kg, 175 cm | 1,809 | ≈ 2,490 | −500 | ≈ 2,000 kcal |
If you want to see what going much lower does, read natural weight loss versus crash dieting.
3Set Protein, Fat and Carbohydrate
Set protein first: around 1.2–1.6 g per kg of body weight a day is a commonly used range for healthy adults (ask your doctor first if you have kidney disease). Put fat at roughly a quarter to a third of calories, and let carbohydrate fill the rest. Because protein and carbohydrate give about 4 kcal per gram and fat about 9, the arithmetic is straightforward.
| Example | Calories | Protein | Fat | Carbohydrate |
|---|---|---|---|---|
| Woman, 70 kg | 1,500 | 100 g | 45 g | ≈ 175 g |
| Man, 90 kg | 2,000 | 120 g | 60 g | ≈ 245 g |
These are starting points. Most people can ignore the grams after a few weeks and use the plate formula from our complete beginner’s guide instead.
4Turn the Numbers Into Meals
Divide the day into the five slots described in our guide: breakfast, mid-morning, lunch, evening snack and dinner. Aim for a protein source at every slot, vegetables or fruit at most of them, and a measured starch portion at lunch and dinner. If your target is around 1,500 kcal, that might look like 300–350 kcal at breakfast, 150 mid-morning, 450 at lunch, 150 in the evening and 400–450 at dinner. Our Pakistani diet plan for weight loss shows how this looks with real Pakistani dishes.
5Choose Foods You Will Actually Eat, and Prepare Ahead
The plan that fits your culture, budget and schedule is the one you will follow. Build it from the foods already in your kitchen, such as dal, chana, eggs, chicken, sabzi, roti and dahi, rather than from imported ingredients. Cook protein and a pot of dal in bulk twice a week, keep roasted chana and fruit at hand for snacks, and decide tomorrow’s meals tonight. Planning removes the decisions that lead to takeaway at 9 p.m.
6Track for Two Weeks, Then Adjust
After two weeks, compare your average weight with the previous two weeks, and note waist, energy and hunger. Then follow the simple rules below:
Losing 0.25–1 kg a week? Keep going; do not change anything.
Losing under 0.25 kg a week? Trim about 100–150 kcal or add about 2,000 daily steps. Change one thing only.
Losing over 1 kg a week for several weeks? Add food, usually protein and carbohydrate, to protect muscle and energy.
Constant hunger or fatigue? Check protein, fibre, sleep and whether your calories are too low.
Frequently Asked Questions
Is the calorie formula accurate?
It is an estimate. Equations such as Mifflin-St Jeor are among the more reliable ones, but individual metabolism can differ from the prediction by a few hundred calories a day. Treat the result as a starting point and adjust based on two to three weeks of real results.
Should I count calories or just use portions?
Either can work. Counting gives precision and teaches you portion sizes, and many people do it for a few weeks and then switch to the plate and hand-portion method. If counting makes you anxious or obsessive, skip it and use portions.
What if I am losing weight too slowly or too fast?
If your two-week average is under about 0.25 kg per week, trim roughly 100–150 kcal or add about 2,000 daily steps. If you are losing faster than about 1 kg a week for several weeks, add food, because faster loss risks muscle. Change one thing at a time.
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