How to maintain your weight after losing it: the phase nobody plans for

The hardest conversation I have with clients is not at the start. It is at the end, when they have hit their goal and ask "so what now?" and realise they have no idea. The diet had a plan. The rest of their life does not. That gap is where regain lives.

The short version

• •Your maintenance calories are lower than before you lost weight. A smaller body burns less. Plan for that, do not fight it.
• •Come out of the deficit gradually: add 100 to 150 kcal a week until weight holds steady.
• •Keep the habits that did the work: protein, vegetables, training, a weekly weigh-in.
• •Drop the diet-only rules: tracking every gram, no eating out, no dessert ever.
• •Set a tripwire: a weight range, not a number. Act when you cross the top of it for two weeks.

Your new maintenance is not your old maintenance

If you were maintaining at 2,400 kcal at 85 kg, you will not maintain at 2,400 at 72 kg. A lighter body needs less. A rough guide is bodyweight in kg times 30 to 32 for a moderately active person. So around 2,200 for that 72 kg person. Going straight back to old portions is how most regain starts, quietly, at 200 kcal a day.

The transition: reverse it slowly

Do not jump from deficit to freedom overnight. Add about 100 to 150 kcal a week, mostly from carbs, and watch the scale. Weight will tick up a kilo or so in the first fortnight; that is glycogen and water refilling, not fat. Keep adding until your weekly average holds steady for two to three weeks. That number is your maintenance. It usually lands higher than the last deficit week and lower than your pre-diet intake.

What to keep

• •Protein at every meal. This is the habit that protects muscle and controls hunger for life, not just during a diet.
• •Half a plate of vegetables. Same reason.
• •Training three times a week. Muscle is what keeps your maintenance calories from falling further.
• •A weekly weigh-in, same day, same conditions. Not daily obsession; a weekly check.
• •Walking. Steps are the cheapest calories you burn.

What to drop

Weighing every gram of rice. Refusing every wedding meal. Zero desserts. These were tools for a deficit, and using them forever is why people feel like they are "always on a diet" and eventually rebel. At maintenance you eat out, you have the sweet at the festival, you stop tracking most days. The structure moves from the food scale to the bathroom scale.

The tripwire

Pick a range, about two kg wide, around your goal weight. Inside it, do nothing. If your weekly average sits above the top of the range for two weeks running, that is your signal: two weeks of tighter eating, back to the range, back to normal. This is the whole system. It catches drift at two kg instead of at twelve, and two kg is a fortnight of effort rather than a year.

The first year is the hard one

Most regain happens in the first 12 months, because that is when the old environment and old habits push hardest and the new body still feels borrowed. If you keep the weekly weigh-in and the tripwire running for a year, the second year is easier, and by the third you are just someone who weighs this much. If you have been through this before and slipped, the getting back on track guide is where to start again, without the guilt.