Protein
First, always
Every meal starts with protein. 60–80g daily target post-op. Your stomach is small; protein has to go in first or you won't fit it later.
The hard truth: bariatric surgery is 20% surgery, 80% nutrition. Most patients who regain weight do so because they lost the eating habits, not because the surgery "stopped working." Our nutrition program is built around making that 80% sustainable.
Every meal starts with protein. 60–80g daily target post-op. Your stomach is small; protein has to go in first or you won't fit it later.
Stop liquids 30 minutes before, during, and 30 minutes after meals. Liquid + food = stretching the pouch. Strict rule, lifelong.
Meals take 20–30 minutes. Set a timer if needed. Slow eating prevents nausea, dumping, and the "I didn't realize I was full" trap.
Log every meal for the first 12 months. Patients who log have 2–3× better long-term outcomes. Our AI assistant makes it 30-second easy.
Bariatric multi, calcium citrate, B12, vitamin D — non-negotiable, forever. We send you the protocol.
No keto pressure, no "Pompeii diet" book to buy, no MLM supplements. Just evidence-based bariatric nutrition that actually works long-term.
Built into the Pompeii patient dashboard, our AI assistant logs meals from photos, calculates protein/carbs/fluids in real time, flags when you're behind on hydration or vitamins, and answers nutrition questions in natural language.
¾ cup nonfat plain Greek yogurt, 1 tbsp slivered almonds, ½ tsp honey. ~25g protein, ~150 cal.
3oz shredded chicken (slow-cooked or rotisserie), 2 tbsp avocado, side of cooked carrots. ~28g protein, ~220 cal.
3oz baked salmon or cod, ¼ cup mashed cauliflower, ¼ cup soft-cooked spinach. ~30g protein, ~250 cal.
Reading this page is a start. Using PrePost is the plan. It takes your procedure, your BMI, your surgery date — and generates a day-by-day program with approved foods, macro targets, and an AI that answers every question you have, around the clock.
Free to sign up. Takes 3 minutes. No credit card.
Build my nutrition plan — freeThree risk tiers automatically adjust your liver-shrinking pre-op protocol and post-op eating stages based on your BMI and procedure — sleeve, bypass, or revision.
Log any meal and get instant stage-appropriate approval, macro tracking, and feedback across all six daily eating windows. Real-time, not delayed by a callback.
"Can I eat this?" — answered in seconds, any time of day or night. Trained on board-certified bariatric protocols. Escalates urgent symptoms automatically.
Color-coded urgency tiers for every bariatric symptom — from mild hunger to dumping syndrome. Patients know exactly when something is normal and when to escalate.
Every food with preparation instructions, portion sizes, and the medical reasoning behind every restriction — so patients understand the why, not just the rules.
Jump to any pre-op or post-op day. See what comes next, plan ahead, or look back — all aligned precisely to your surgery date.
Start free ↗Apply once and your nutritionist starts working with you before surgery — pre-op diet, post-op staging, supplements, and the AI assistant in your pocket.