The gastric bypass diet has rules of its own because the operation changes not just the stomach but the route food takes through the gut. Sugar arrives too fast, iron and some vitamins are absorbed less, and the pouch can stretch. This archive collects the guides written for bypass patients specifically; what applies to any bariatric patient is in Life After Bariatric Surgery.

Begin with the gastric bypass meal plan, which sets out the stages, and the soft foods for the weeks after liquids. When protein shakes start to taste of nothing, or worse, there is a guide for that too.

The side effects have their own articles. Dumping syndrome is the early one, minutes after a sugary meal; reactive hypoglycemia is the late one, hours afterwards, and the two need different remedies. If portions have crept up, read the signs of a stretched pouch before assuming the worst. A guide to iron absorption and anaemia is scheduled.

The Gastric Bypass Cookbook is built around these constraints: low sugar, protein first, and portions that respect the pouch.