Gastric bypass surgery has helped millions of people lose weight, improve diabetes, and reduce obesity-related risks. But it’s not a shortcut — and it’s not risk-free, especially in the long run. If you’re considering gastric bypass (or already had it), this guide explains the real, medically recognized long-term side effects — clearly, honestly, and without fear-mongering. First, What Is Gastric Bypass? Gastric bypass (commonly Roux-en-Y) works by: This combination causes significant weight loss — but it also explains why long-term effects happen. 1. Long-Term Nutrient Deficiencies (Very Common) This is the most well-documented long-term side effect. Common deficiencies include: Why it happens Food bypasses parts of the intestine where nutrients…