NutriStack
Prednisone and Vitamin D2, a synergy.
Long-term prednisone therapy can cause rapid bone loss and increase fracture risk. Vitamin D2 can help maintain vitamin D status and calcium absorption as part of glucocorticoid-induced osteoporosis prevention.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- Prednisone and Vitamin D2
- Pair type
- Synergy
- Evidence (highest tier)
- Strong
- Source citations
- 2 sources
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Synergy · Strong evidence
Synergy
What is happening. Long-term prednisone therapy can cause rapid bone loss and increase fracture risk. Vitamin D2 can help maintain vitamin D status and calcium absorption as part of glucocorticoid-induced osteoporosis prevention.
Mechanism. Prednisone disrupts bone remodeling and calcium balance through systemic glucocorticoid effects. Vitamin D2 can raise 25-OH vitamin D and support calcium absorption, helping address one modifiable contributor to steroid-induced bone loss.
Recommendation. Use vitamin D2 only as part of a complete bone-protection plan that includes calcium intake, vitamin D status monitoring, and fracture-risk assessment. If you are on prednisone for more than a short course, ask whether you need bone density testing or prescription osteoporosis prevention.
Sources (2)
- Humphrey MB, Russell L, Danila MI, et al. 2022 American College of Rheumatology Guideline for the Prevention and Treatment of Glucocorticoid-Induced Osteoporosis. Arthritis Care Res (Hoboken). 2023;75(12):2405-2419. PMID 37884467
- Homik J, Suarez-Almazor ME, Shea B, Cranney A, Wells G, Tugwell P. Calcium and vitamin D for corticosteroid-induced osteoporosis. Cochrane Database Syst Rev. 2000;1998(2):CD000952. PMID 10796394
Stack Score
How this pair moves the number.
Effect on the composite score
If both Prednisone and Vitamin D2 are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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