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Evidence-Based Supplement Research
Evidence-Based Supplement Research

Best Supplements for Reduced Vitamin D Level

Ranked by research evidence. Compare 1 supplement across 4 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.

Top picks by evidence

  • Low evidence4 studies

    Across 4 studies, 1 reported beneficial, 1 neutral, and 2 harmful effects of Vitamin D on reduced Vitamin D levels, with a predominant effect size that is small to large and mixed. All findings were statistically significant, but study durations and doses were not consistently reported. The strongest evidence (a meta-analysis of psoriasis patients) showed a large harmful association (odds ratio 3.07 for lower vitamin D levels), while other studies in clinical populations showed small to moderate effects in both directions.

    Product match
    Viva NaturalsVitamin D3 with Organic Liquid Coconut Oil
    125 mcg · $15.16 · ★5.0 (208)
1 supplement
  • LowVitamin DAcross 4 studies, 1 reported beneficial, 1 neutral, and 2 harmful effects of Vitamin D on reduced Vitamin D levels, with a predominant effect size that is small to large and mixed. All findings were statistically significant, but study durations and doses were not consistently reported. The strongest evidence (a meta-analysis of psoriasis patients) showed a large harmful association (odds ratio 3.07 for lower vitamin D levels), while other studies in clinical populations showed small to moderate effects in both directions.1 beneficial1 neutral2 harmful4 studies
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