Research
Micronutrients & recovery
Bariatric surgery patients have extremely high rates of pre-existing micronutrient deficiencies, requiring comprehensive screening and aggressive post-operative supplementation.
If you are having bariatric surgery, get screened for nutrient deficiencies beforehand. Do not rely on standard multivitamins alone; you will likely need specific, higher-dose supplements tailored to your blood work to prevent long-term health issues.
StrongSupportsVERY_HIGH confidence
Up to 85.5% of patients had at least one vitamin or mineral deficiency before bariatric surgery, while 50% displayed a deficiency of greater than 2 micronutrients... Studies on nutritional status before bariatric surgery found 70–90% of participants were vitamin D deficient
Why this rating
Specific statistics from multiple studies cited in the review.
Source
Obesity and malnutrition in children and adults: A clinical review
Morgan Bradley et al. · Obesity Pillars · 2023
DOI 10.1016/j.obpill.2023.100087
narrative_reviewCited 48×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Obesity is associated with high prevalence of micronutrient deficiencies (e.g., Vitamin D, Iron, B12) due to physiological changes like increased volume of distribution, sequestration in adipose tissue, and inflammation-induced malabsorption (e.g., hepcidin blocking iron).Good
- Strict weight reduction diets (Low-carb, Ketogenic, Intermittent Fasting, VLCD) significantly increase the risk of micronutrient deficiencies compared to balanced or low-fat diets.Good
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