What vitamins am I at risk of becoming deficient in?

The prevalence of vitamin and mineral deficiencies vary, however the most common deficiencies that can occur include:

  • Vitamin D – This has been reported to be as high as 90-100% of patients.
  • Folate – The risk of folate deficiency is reported to be as high as 65%
  • Thiamine – Risk of deficiency after bariatric surgery reported as high as 49%.
  • Vitamin B12 – The risk of vitamin B12 in bariatric surgery is shown to be as high as 20%
  • Iron – The prevalence of iron deficiency is high after bariatric surgery, especially the more malabsorptive procedures such as the Roux-en-Y Gastric Bypass (RYGB) and is reported to be as high as 62% even after many years post-surgery.
  • Vitamin A – The risk of vitamin A deficiency is reported as high as 70%, especially in more malabsorptive procedures such as Roux-en-Y Gastric Bypass (RYGB).
  • Zinc – The risk for zinc deficiency has been reported to be as high as 40% in Roux-en-Y Gastric Bypass (RYGB).

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