How to Lose 10 kg in 3 Months: A Realistic Week-by-Week Plan

This is the most common target I hear, and it is worth being honest about it before the plan, because the same number is sensible for one person and a mistake for another. So first: is it right for you?

Is 10 kg in 12 weeks realistic for you?

The reason is arithmetic. A kilogram of fat is roughly 7,700 calories, so 0.8 kg a week needs a deficit of about 880 a day. A 95 kg man who maintains on 2,900 can eat 2,000 and be fine. A 62 kg woman who maintains on 1,900 would need to eat 1,000, which is not a plan, it is a crash. The bigger you are, the bigger the deficit you can run without it wrecking you.

The three numbers you need before week 1

1. 1Maintenance calories: bodyweight in kg × 30 to 33 if you are moderately active, × 28 if you sit all day. A 90 kg man with a desk job: about 2,500.
2. 2Your target: maintenance minus 800 (heavier people) or minus 500 to 600 (lighter people). Never below 1,400 for men or 1,200 for women without a doctor involved.
3. 3Protein: 1.8 to 2.2 g per kg of your goal weight. Going from 90 to 80 kg? Aim for about 160 g a day. This is the number that decides whether you lose fat or lose muscle and look deflated.

Weeks 1–4: build the machine

The first month is not about the biggest deficit. It is about making the deficit automatic. People who try to do everything in week one are the people who quit in week three.

Expected result: 3 to 4 kg. The first week is often 1.5 to 2 kg on its own, and most of that is water and stored carbohydrate leaving with the drop in salt and refined food. Do not celebrate it and do not panic when week two is smaller. That is normal.

Weeks 5–8: tighten and push

By now the habits run themselves and your maintenance has dropped a little because you weigh less. This is where the plan needs a nudge.

• Re-calculate: new bodyweight × 30. Drop your target by another 100 to 150 calories if the weekly average has stalled for two weeks.
• Training goes to 4 sessions: an upper/lower split, adding weight or reps each week.
• Add two 30-minute Zone 2 walks — brisk, can talk but would rather not — on top of the daily steps.
• Keep one meal a week that is simply a normal family meal with no tracking. Not a binge; a meal. This is what makes months two and three survivable.

Expected result: 3 kg. Slower than month one, entirely on schedule, and this is the month people quit because the scale is boring. Take photos and waist measurements instead; they move when the scale does not.

Weeks 9–12: hold the line, protect the muscle

The last month is where hunger is highest and energy is lowest, because you are lighter and have been in a deficit for two months. The mistakes here are cutting calories further or adding hours of cardio. Both cost muscle.

• Calories stay where they were unless the average has been flat for three weeks. If it has, take a full week at maintenance — a diet break — then resume. It resets hunger hormones and, counter-intuitively, usually restarts the loss.
• Protein goes up slightly, to the top of the range. It is your muscle insurance.
• Training intensity stays high, volume drops a little. Fewer sets, same weights. You are trying to keep strength, not build it.
• Sleep becomes a training variable. Under 7 hours and the body preferentially loses muscle instead of fat in a deficit.

Expected result: 3 kg. Total: 9 to 10 kg, with strength roughly held, which means most of it was fat. That is the whole point.

What a day looks like at 2,000 calories

Roti stays. Salan stays. What changes is the oil (measured, not poured), the sugar in tea (gone), the second and third roti (gone), and the protein at every meal (up). That is a diet you can eat with your family.

The five things that break this plan

1. 1Weekends. Five good days and two loose ones erase the week. Track Saturday like Tuesday.
2. 2Oil. A family salan with half a cup of oil is 950 calories before the meat. Measure what goes in the pot.
3. 3Sugary tea. Four cups at 110 calories is a meal you did not eat.
4. 4Weighing daily and reacting daily. Judge the weekly average and nothing else.
5. 5Chasing the number in week ten by slashing calories. That is how you arrive at 10 kg lighter with less muscle and a metabolism that punishes you afterwards.

After week 12

Come up to maintenance slowly — add 150 calories a week for four weeks — and keep the protein and the lifting. The people who keep the weight off are not the ones who dieted hardest. They are the ones who kept training and never went back to sugary tea and unmeasured oil.

This article is general information, not medical advice. If you have diabetes, a heart condition, take regular medication, are pregnant, or have a history of disordered eating, speak to your doctor before starting a calorie deficit of this size.