What would happen if you had total gastrectomy?

Total gastrectomy involves the complete removal of the stomach, which necessitates significant dietary and lifestyle changes. As a result, patients may experience challenges with nutrient absorption, leading to deficiencies in vitamins and minerals, particularly vitamin B12, iron, and calcium. They will need to eat smaller, more frequent meals and may require supplementation to maintain proper nutrition. Additionally, the absence of the stomach can cause changes in digestion and may lead to symptoms like dumping syndrome, where food moves too quickly into the small intestine.