Research
Micronutrients & recovery
Bariatric patients should take calcium citrate supplements (1200-1500 mg/day) and Vitamin D (3000 IU/day) to ensure adequate absorption and prevent bone disease and kidney stones.
Take 1200-1500 mg of calcium citrate and 3000 IU of Vitamin D daily. Calcium citrate is required because your stomach acid is lower after surgery. Monitor your Vitamin D levels to ensure they stay above 30 ng/mL.
GoodSupportsHIGH confidence
the use of adequate calcium supplements in the form of citrate salts is mandatory as gastric acid secretion might be reduced after BS... The minimal daily vitamin D supplementation for BS patients is at least 3000 international units (IU)
Why this rating
Based on clinical guidelines and studies cited in the review.
Source
Dietary Recommendations for Bariatric Patients to Prevent Kidney Stone Formation
Milene Subtil Ormanji et al. · Nutrients · 2020
DOI 10.3390/nu12051442
narrative_reviewCited 39×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Bariatric surgery, particularly malabsorptive procedures, significantly increases the risk of nephrolithiasis (kidney stones) due to enteric hyperoxaluria, low urinary volume, and hypocitraturia.Good
- Post-bariatric patients should restrict high-oxalate foods and maintain adequate calcium intake (1200-1500 mg/day) to bind intestinal oxalate and prevent enteric hyperoxaluria.Good
- Bariatric patients should maintain a fluid intake of approximately 2.5 L/day to achieve a urinary volume of 2.5 L/day, mitigating the risk of stone formation caused by low urinary volume.Good
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