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Medicine

Nutritional Implications of Bariatric Surgery

Quick fact

Up to 30–50% of bariatric surgery patients develop iron deficiency, and nearly 40% may have vitamin B12 deficiency within a few years without proper supplementation.

Why this is interesting

After weight-loss surgery, patients often eat far less—but the real challenge is that their bodies may stop absorbing what little they do eat. Imagine your gut suddenly forgetting how to take up iron or vitamin B12.