Research
Micronutrients & recovery
Pre-operative nutritional assessment and correction of deficiencies (especially Vitamin D and Iron) is critical before bariatric surgery to mitigate post-operative risks.
Before your surgery, ask for a full nutritional panel, specifically checking Vitamin D and Iron levels. Correct any deficiencies now to give your body the best chance to recover without severe complications.
GoodSupportsHIGH confidence
Of note is the evidence that most obese patients present a number of nutritional deficits already prior to surgery, the most important being vitamin D and iron deficiencies. This finding prompts the need for a complete nutritional assessment and, eventually, an adequate correction of pre-existing deficits before surgery.
Why this rating
Supported by multiple studies cited in the review regarding pre-op prevalence.
Source
Bariatric surgery and long-term nutritional issues
Roberta Lupoli et al. · World Journal of Diabetes · 2017
DOI 10.4239/wjd.v8.i11.464
narrative_reviewCited 420×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- 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.Good
- Post-operative weight regain is a common long-term risk associated with bariatric surgery, driven by reduced energy expenditure and hormonal changes, requiring lifestyle adherence.Good
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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 →