Life with Iron
8 established essential nutrientsGraded on the nutrient adequacy of 8 labeled ingredients.
83out of 100Grade A
Research evidence score
Graded on 8 established essential nutrients · led by Retinol
- Niacin: dose is above the recommended upper limit.
How the ingredients work together
Known interactions from published nutrition research — separate from the evidence grade.
88 of 8 nutrients at a meaningful dose (≥20% Daily Value).
Vitamin C + Vitamin EWork together
Vitamin C regenerates oxidized vitamin E, recycling its antioxidant capacity.
Ingredient breakdown
A
RetinolSupports vision and immune function
Research: Established essential nutrientDaily Value: 208%Dose: 1875 mcgEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin CSupports immune function and antioxidant defense
Research: Established essential nutrientDaily Value: 556%Dose: 500 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin D3Supports bone health and immune function
Research: Established essential nutrientDaily Value: 156%Dose: 31.25 mcgEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin EProtects against oxidative damage
Research: Established essential nutrientDaily Value: 893%Dose: 134 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin KSupports blood clotting and bone metabolism
Research: Established essential nutrientDaily Value: 100%Dose: 120 mcgEvidence strength: Established nutrient — this product provides a meaningful dose
A
ThiamineSupports energy metabolism and nerve function
Research: Established essential nutrientDaily Value: 813%Dose: 9.75 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
RiboflavinSupports cellular energy production and antioxidant defense
Research: Established essential nutrientDaily Value: 846%Dose: 11 mgEvidence strength: Established nutrient — this product provides a meaningful dose
C
NiacinSupports cholesterol metabolism and cellular energy
Research: Established essential nutrientDaily Value: 813%Dose: 130 mgEvidence strength: Established nutrient — this product provides a meaningful dose
This summary describes only the ingredients and the research behind them — it is not a judgment of the product or its marketing. Grades reflect the weight of published evidence cross-referenced against 350M+ research papers. How we grade →
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