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Evidence-Based Supplement Research
Evidence-Based Supplement Research

Best Supplements for Reduced Thyroid Peroxidase Antibody Level

Ranked by research evidence. Compare 5 supplements across 10 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.

Top picks by evidence

  • High evidence5 studies

    Across 5 studies (4 beneficial, 1 neutral), selenium supplementation shows consistent evidence for reducing thyroid peroxidase antibody (TPOAb) levels in patients with Hashimoto thyroiditis, with meta-analyses reporting moderate to large effect sizes. The median study duration across one study was 182 days, with effects observed at 3 and 6 months. No specific dose or form was consistently reported across studies.

    Product match
    Bluebonnet NutritionMen's ONE
    55 mcg · $14.80 · ★5.0 (21)
5 supplements
  • HighSeleniumAcross 5 studies (4 beneficial, 1 neutral), selenium supplementation shows consistent evidence for reducing thyroid peroxidase antibody (TPOAb) levels in patients with Hashimoto thyroiditis, with meta-analyses reporting moderate to large effect sizes. The median study duration across one study was 182 days, with effects observed at 3 and 6 months. No specific dose or form was consistently reported across studies.4 beneficial1 neutral5 studies
  • L-Selenomethionine2 beneficial2 studies
  • Cordyceps1 beneficial1 study
  • Lactobacillus plantarum 299v1 neutral1 study
  • Vitamin D1 neutral1 study
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