Research
Micronutrients & recovery
Bariatric surgery (RYGB, SG, BPD) causes significant long-term nutritional deficiencies (iron, B12, Vitamin D, calcium, protein) due to anatomical bypass and malabsorption, necessitating lifelong monitoring and supplementation.
If you have had bariatric surgery, you must commit to lifelong blood tests and taking specific supplements (iron, B12, Vitamin D, Calcium) as prescribed. Your body can no longer absorb nutrients efficiently, and skipping supplements risks permanent damage like anemia or bone loss.
GoodSupportsHIGH confidence
All bariatric procedures, to variable degrees, alter the anatomy and physiology of the gastrointestinal tract; this alteration makes these patients more susceptible to developing nutritional complications, namely, deficiencies of macro- and micro-nutrients, which could lead to disabling diseases such as anemia, osteoporosis, protein malnutrition.
Why this rating
Based on a comprehensive review of multiple studies and guidelines, though it is a review paper rather than a single RCT.
Source
Bariatric surgery and long-term nutritional issues
Roberta Lupoli et al. · World Journal of Diabetes · 2017
narrative_reviewCited 420×
Read the paper This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →