Protein Shake Vanilla

Backed by 5 studies

Overall grade based on research across 6 ingredients.

63out of 100Grade C

Research evidence score

Weighed against 5 published studies · led by Potassium

How the ingredients work together

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

Iron + Vitamin CWork together

Vitamin C markedly improves non-heme iron absorption by reducing it to its more absorbable form.

Calcium vs IronCompete

Calcium inhibits iron absorption when taken together. If you take this for the iron, consider spacing it from calcium-rich meals or supplements.

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Ingredient breakdown

PotassiumSupports blood pressure regulation and muscle function

Research: Established essential nutrientDaily Value: 4.9%Dose: 230 mgEvidence strength: Established nutrient — only a token dose in this product

RetinolSupports vision and immune function

Research: Established essential nutrientEvidence strength: Established essential nutrient — extensively researched

Vitamin CSupports immune function and antioxidant defense

Research: Established essential nutrientEvidence strength: Established essential nutrient — extensively researched

CalciumSupports bone density and muscle contraction

Research: Established essential nutrientEvidence strength: Established essential nutrient — extensively researched

IronSupports oxygen transport and energy

Research: Established essential nutrientEvidence strength: Established essential nutrient — extensively researched

Sodium CitrateGeneral health support

Research direction: InconclusiveEvidence: 5 studiesEvidence strength: Moderate - supportive but mixed

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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