Weight Loss

Life after a gastric sleeve: the first year, honestly

Rapid loss for six months, a plateau that frightens everyone, and a set of habits that decide the next decade.

Weeks 1–4: liquids and purée

Two weeks of clear then full liquids, then two of purée. The challenge is not hunger — it is remembering to drink enough between meals, since you cannot drink with food. Dehydration is the commonest reason for readmission.

Months 2–6: rapid loss

Most patients lose 40–50% of their excess weight in this window. Hair shedding around month three is common and temporary, caused by rapid loss and lower protein intake, not by the surgery itself.

Months 7–12: the plateau

Loss slows sharply and many patients panic. This is physiological: metabolic rate falls with body mass. The answer is protein, resistance training and patience — not eating less, which triggers muscle loss.

Year one onward: what protects the result

Protein first at every meal, 90 minutes of activity a week minimum, annual bloods, and honesty about grazing — the single behaviour most associated with regain after a sleeve.

Swedish Clinic
Swedish Clinic IstanbulReviewed by our clinical team
Frequently asked questions

Life after a gastric sleeve: the first year, honestly

Often, around months 3–5, and it regrows. Adequate protein, iron, zinc and B12 minimise it.

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