Vitamins and Autoimmune Disease Risk
Author Information
Author(s): Low Chen Ee, Loke Sean, Chew Nicole Shi Min, Lee Ainsley Ryan Yan Bin, Tay Sen Hee
Primary Institution: Yong Loo Lin School of Medicine, National University of Singapore
Hypothesis
How does the intake of vitamins, antioxidants, and micronutrients affect the risk of developing autoimmune diseases?
Conclusion
The study found that vitamin D supplementation may not significantly affect the risk of autoimmune diseases, but specific dosages of 600-800 IU/day may reduce this risk.
Supporting Evidence
- 18 studies were included in the meta-analysis.
- Vitamin D supplementation did not significantly affect the risk of autoimmune diseases overall.
- Subgroup analysis showed that 600-800 IU/day of vitamin D may significantly reduce the risk.
- Smoking, age, physical activity, and diet were significant confounding factors.
Takeaway
Taking certain vitamins might help prevent autoimmune diseases, but too much of them can be harmful. It's important to find the right amount.
Methodology
This systematic review followed PRISMA guidelines and included a search of PubMed, Embase, and Cochrane for controlled studies evaluating the risk of autoimmune diseases after supplementation.
Potential Biases
No significant risk of bias identified, but some publication bias was noted.
Limitations
High heterogeneity in reporting outcomes and variability in supplementation dosages across studies.
Participant Demographics
The studies included a diverse population with varying ages, genders, and health statuses, with women making up approximately 80% of the autoimmune disease population.
Statistical Information
P-Value
0.99
Confidence Interval
0.81-1.20
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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