Research
Micronutrients & recovery
Calcium and Vitamin D supplementation alone is often ineffective for improving bone mineral density in IBD patients with established osteoporosis, requiring bisphosphonates or fluoride.
If you have IBD and established osteoporosis, calcium and Vitamin D alone are likely not enough. You probably need stronger medication like bisphosphonates. Ensure you get 1.5g of calcium and 800 IU of Vitamin D daily, but don't rely on them to fix your bone density.
GoodRefutesHIGH confidence
In a prospective, placebo-controlled study... Bernstein et al. failed to demonstrate a beneficial effect on bone mineral density after 1 year of treatment... there was no change in the bone mineral density after 1 year of oral calcium / vitamin D supplementation.
Why this rating
Based on prospective, placebo-controlled studies showing lack of efficacy.
Source
Nutrition and adult inflammatory bowel disease
J. Goh et al. · Alimentary Pharmacology & Therapeutics · 2003
DOI 10.1046/j.1365-2036.2003.01482.x
narrative_reviewCited 237×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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