Best Supplements for Improved Iron Levels
Ranked by research evidence. Compare 10 supplements across 13 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Low evidence3 studies
Across all 3 studies in the database, Lactobacillus plantarum 299v supplementation consistently showed beneficial effects on iron status, with 2 of 3 studies reporting statistically significant improvements. Effect sizes ranged from small to large, with a moderate median effect; the largest and highest-quality trial (n=295, RCT) found significantly higher serum iron levels in the probiotic group. Evidence is concentrated in pregnant women and individuals with iron deficiency anemia, with a median study duration of 90 days (reported in 1 study).
Dose: 10^10 CFU/day
10 supplements
- LowLactobacillus plantarum 299vAcross all 3 studies in the database, Lactobacillus plantarum 299v supplementation consistently showed beneficial effects on iron status, with 2 of 3 studies reporting statistically significant improvements. Effect sizes ranged from small to large, with a moderate median effect; the largest and highest-quality trial (n=295, RCT) found significantly higher serum iron levels in the probiotic group. Evidence is concentrated in pregnant women and individuals with iron deficiency anemia, with a median study duration of 90 days (reported in 1 study). · Dose: 10^10 CFU/day3 beneficial3 studies