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Kirkland Signature Organic Multivitamin

8 established essential nutrients

Graded on the nutrient adequacy of 8 labeled ingredients.

A
84out of 100Grade A
Research evidence score

Graded on 8 established essential nutrients · led by Retinol

Strong pick. Retinol, Vitamin C and Vitamin D3 (+5 more) have real research behind them.

Based on the ingredients we could read from this scan. A full label may include more — like added sugars, colorings or other ingredients — than we captured here.

How the ingredients work together

Known interactions from published nutrition research — separate from the evidence grade.

77 of 7 nutrients at a meaningful dose (≥20% Daily Value).
Vitamin C + Vitamin EWork together

Vitamin C regenerates oxidized vitamin E, recycling its antioxidant capacity.

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Ingredient breakdown

A
RetinolSupports vision and immune function
Research: Established essential nutrientDaily Value: 105%Dose: 945 mcg RAEEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin CSupports immune function and antioxidant defense
Research: Established essential nutrientDaily Value: 100%Dose: 90 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin D3Supports bone health and immune function
Research: Established essential nutrientDaily Value: 150%Dose: 30 mcgEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin EProtects against oxidative damage
Research: Established essential nutrientDaily Value: 100%Dose: 15 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
ThiamineSupports energy metabolism and nerve function
Research: Established essential nutrientDaily Value: 467%Dose: 5.6 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
RiboflavinSupports cellular energy production and antioxidant defense
Research: Established essential nutrientDaily Value: 431%Dose: 5.6 mgEvidence strength: Established nutrient — this product provides a meaningful dose
B
NiacinSupports cholesterol metabolism and cellular energy
Research: Established essential nutrientDose: 7.9 mg NEEvidence strength: Established essential nutrient — extensively researched
A
Vitamin B6Supports energy metabolism and neurotransmitter synthesis
Research: Established essential nutrientDaily Value: 665%Dose: 11.3 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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