one hundred GRAMS OF PROTEIN in and fifty millilitres: Eating well after a gastric bypass, biliopancreatic diversion or SADI-S.

Malabsorptive operations work through two levers. The first is restriction: the stomach goes from 1,000-1,500 millilitres to a pouch of 100-150. The second is malabsorption: rerouting the intestine moves the point where food meets bile and pancreatic juice towards the end of the gut, cutting how much is absorbed. The catch is that malabsorption does not distinguish between what you need and what you do not - along with the calories go protein, iron, calcium, B vitamins and, after a duodenal switch, >The first half of the book turns all of this into behaviour: twelve rules of the plate, the protein target by procedure and by height, the six stages with volumes and timings, the chapter on fluids and the thirty-minute rule, lifelong supplementation with guideline reference doses, the blood-test calendar, early and late dumping, fat malabsorption, and - in the chapter that matters most - the warning signs >Two further chapters cover weight regain - why it happens, its eight causes with the early warning signals, and the six moves in order of priority - and excess skin, with the criteria for post-bariatric >The second half is the recipes, organised by stage: clear liquids, protein liquids, puréed, soft foods, then breakfasts, lunches, dinners, protein snacks and sugar-free desserts. Every recipe states **protein, calories, fat, sugars and serving volume**, because after these operations the number to watch is not calories: it is grams of protein and millilitres in.