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Head-to-head evidence comparison — which supplement is right for you?
Lutein + Zeaxanthin and Resistant Starch are closely matched across evidence, studies, and safety.
Verdict
Likely helps
12 of 13 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
17 of 19 studies with measurable effects showed benefit.
Top outcomes
10mg lutein + 2mg zeaxanthin
With a meal containing fat
Softgels with both lutein and zeaxanthin
15-30g daily
With meals, Divide throughout day for higher doses
Raw potato starch (unmodified) or green banana flour
3-6 months
4-8 weeks
3-6 months
2-4 weeks
4-8 weeks
1-2 weeks
First 1-2 weeks
The effects of lutein on cardiometabolic health across the life course: a systematic review and meta-analysis
The American journal of clinical nutrition (2016) · Meta analysis · n=387569
Meta-analysis showed a lower risk of coronary heart disease (pooled RR: 0.88; 95% CI: 0.80, 0.98) and stroke (pooled RR: 0.82; 95% CI: 0.72, 0.93) for the highest compared with the lowest tertile of lutein blood concentration or intake.
Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration
The Cochrane database of systematic reviews (2023) · Systematic review · n=2445
These studies enroled 11,952 people aged 65 to 75 years and included slightly more women (on average 56% women).
Long-term Outcomes of Adding Lutein/Zeaxanthin and ω-3 Fatty Acids to the AREDS Supplements on Age-Related Macular Degeneration Progression: AREDS2 Report 28
JAMA ophthalmology (2022) · Rct · n=3882
This study included 3882 participants (mean [SD] baseline age, 72.0 [7.7] years; 2240 women [57.7%]) and 6351 eyes.
Metabolic Effects of Resistant Starch Type 2: A Systematic Literature Review and Meta-Analysis of Randomized Controlled Trials
Nutrients (2019) · Meta analysis · n=670
However, these outcomes were heavily influenced by positive results from a small number of individual studies which contradicted the conclusions of the majority of trials.
Acute Effects of Dietary Fiber in Starchy Foods on Glycemic and Insulinemic Responses: A Systematic Review of Randomized Controlled Crossover Trials
Nutrients (2023) · Systematic review
Data on insoluble DF and glucose metabolism are scarce.
The Effects of Resistant Starch on Biomarkers of Inflammation and Oxidative Stress: A Systematic Review and Meta-Analysis
Nutrition and cancer (2022) · Meta analysis · n=739
We used from the effect size, as estimated by the standardized mean difference (SMD) with 95% confidence intervals (95%CI) to perform the random method meta-analysis, with P value ≦0.05 as statistically significant.
Based on multiple meta-analyses showing significant MPOD increases in both AMD patients and healthy subjects. Effect size modest but consistent across studies. Higher doses may increase carotenodermia risk.
Meta-analysis showed modest 3.32 mg/dL reduction in fasting glucose. Effects were heavily influenced by small number of positive studies, with majority showing mixed results. Higher doses increase GI side effects.
AI-estimated from published studies. Interpret as directional guidance.
Both Lutein + Zeaxanthin and Resistant Starch are closely matched — the best choice depends on your specific health goals.
No known interactions between Lutein + Zeaxanthin and Resistant Starch have been documented in our database. However, always consult a healthcare provider before combining supplements.