Preventing weight regain
Your body will try to restore the weight. That is biology, not weakness. These are the specific defences that work, ranked by evidence.
Why regain happens
Weight loss triggers measurable adaptations: hunger hormones rise, fullness hormones fall, and resting metabolism drops slightly below what your new size would predict. This is called metabolic adaptation, and it persists for years. Knowing this reframes maintenance: you are not broken for feeling hungrier. You are adapted, and adaptation can be managed.
Defence 1: protein
Protein is the most filling macronutrient, costs calories to digest, and protects the muscle that keeps your metabolism higher. Target 1.2 to 1.6 g per kg of target body weight daily, for a 75 kg target, that is 90 to 120 g. The protein guide translates that into actual meals.
Defence 2: strength training
Muscle is metabolically expensive tissue. Two sessions a week, compound movements, progressive load, rebuilds what dieting cost and raises the calorie floor you can eat at without gaining. Our exercise guide has a starter programme built for people coming off GLP-1 treatment.
Defence 3: monitoring without obsession
Weekly weigh-ins, same day, same time, same scales. Track the 4-week trend, not the daily noise. Agree a personal drift threshold with your prescriber, usually a 2 to 3 kg sustained uptrend. That triggers a pre-planned response: a tighter food structure for a few weeks, or a temporary return to a maintenance dose. The response is decided in advance, so the moment never feels like failure.
Defence 4: sleep and stress
A week of 5-hour nights raises ghrelin and lowers leptin measurably. You are hungrier on less sleep, chemically. Chronic stress drives cortisol-linked eating. These are not soft lifestyle extras. They are appetite regulation. The sleep guide gives the practical protocol.
Defence 5: environment design
Willpower is a losing strategy against a stocked biscuit cupboard. Keep protein-rich food visible and convenient. Keep trigger foods out of the house. Plan the risky weeks, holidays, celebrations, deadlines, before they arrive. Structure beats resolve every time.
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- Written by
- Able Clinic editorial team
- Clinical review
- Pharmacy team at Curb Healthcare Ltd, GPhC 9012581
- Last reviewed
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