After bariatric surgery you eat less because of the smaller stomach so you may not get enough vitamins and minerals from diet alone. Gastric Bypass and BPD Switch absorb nutrients differently after surgery. Daily vitamin and mineral supplements are required for life. 

This is a 3-page guide that can be used as a reference or patient handout.

Supplementation follows ASMBS recommendations from the following citation:

American Society for Metabolic and Bariatric Surgery Integrated Health Nutritional Guidelines for the Surgical Weight Loss Patient 2016 Update: Micronutrients Parrott, Julie et al. Surgery for Obesity and Related Diseases , Volume 13 , Issue 5 , 727 – 741

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