Free tool
How much protein do I need after surgery?
A quick, bariatric-specific answer for sleeve, bypass, lap band and balloon patients — written in plain English, ranged for your body and your current phase.
Your details
Your daily target
100g / day
≈ 25 g per meal across 4 small meals
Your daily target: 100 g. 1.2 g per kg of your current weight (85 kg), kept inside the 60–100 g bariatric range. Always confirm with your bariatric team.
This calculator uses the widely-cited bariatric guideline of ~1.2 g of protein per kg of body weight, clamped to the safe 60–100 g/day range, with a small bump for gastric bypass to allow for malabsorption. Always confirm your target with your bariatric team.