Best Supplements for Reduced Oxidative Stress
Ranked by research evidence. Compare 75 supplements across 97 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Moderate evidence4 studies
Across 4 studies, 3 reported beneficial effects on reducing oxidative stress, with effect sizes ranging from small to large. The most studied populations are clinical groups (coronary artery disease, sarcopenia). The median study duration was 84 days (12 weeks), based on a single trial that used 1000 mg/day of vitamin C (combined with vitamin E).
- Low evidence5 studies
Across 5 studies, 5 reported beneficial effects of Lactobacillus rhamnosus on reducing oxidative stress, with a predominant moderate effect size. Two of the 5 findings were statistically significant. Evidence is primarily from animal and in vitro models, with no human data available; study durations and doses were not consistently reported.
- Low evidence3 studies
Across 3 studies, all 3 reported beneficial effects of vitamin D on reducing oxidative stress, with 2 statistically significant findings. The predominant effect size was mixed (ranging from small to large). The median study duration was 56 days, and the most-studied dose was 50,000 IU/week in a clinical population of multiple sclerosis patients.
Dose: 50,000 IU/weekProduct matchViva Naturals — Vitamin D3 with Organic Liquid Coconut Oil125 mcg · $15.16 · ★5.0 (208)
- LowLactobacillus rhamnosusAcross 5 studies, 5 reported beneficial effects of Lactobacillus rhamnosus on reducing oxidative stress, with a predominant moderate effect size. Two of the 5 findings were statistically significant. Evidence is primarily from animal and in vitro models, with no human data available; study durations and doses were not consistently reported.5 beneficial5 studies
- ModerateVitamin CAcross 4 studies, 3 reported beneficial effects on reducing oxidative stress, with effect sizes ranging from small to large. The most studied populations are clinical groups (coronary artery disease, sarcopenia). The median study duration was 84 days (12 weeks), based on a single trial that used 1000 mg/day of vitamin C (combined with vitamin E).3 beneficial1 neutral4 studies
- LowVitamin DAcross 3 studies, all 3 reported beneficial effects of vitamin D on reducing oxidative stress, with 2 statistically significant findings. The predominant effect size was mixed (ranging from small to large). The median study duration was 56 days, and the most-studied dose was 50,000 IU/week in a clinical population of multiple sclerosis patients. · Dose: 50,000 IU/week3 beneficial3 studies
- LowN-Acetyl CysteineAcross 3 studies, 3 reported beneficial effects of N-Acetyl Cysteine (NAC) on reducing oxidative stress, with moderate effect sizes in the highest-quality study. The best evidence comes from a 16-week pilot RCT in children with metabolic dysfunction-associated steatotic liver disease (MASLD) using 600–1200 mg/day NAC, showing moderate effects on oxidative stress markers like GSH. Effects were typically observed at 112 days (16 weeks), and the evidence base is small. · Dose: 600-1200 mg/day3 beneficial3 studies
- Very lowBifidobacterium plantarumAcross 3 studies, all reported beneficial effects of Bifidobacterium plantarum on reducing oxidative stress, with effect sizes ranging from small to moderate. The evidence base is very limited and preliminary, and no specific dose, form, or population data were consistently reported. Duration of supplementation was not reported across studies.3 beneficial3 studies