EVIDENCE-BASED SUPPLEMENT SCORING
6.9/10
AVERAGE

Confidence: 75%

Oath Nutrition Clear Whey Isolate Protein Powder, Frosty Lemonade, 20g Complete Protein per Serving, No Added Sugar, Grass-Fed, 21 Servings

Oath Nutrition Clear Whey Isolate Protein Powder, Frosty Lemonade, 20g Complete Protein per Serving, No Added Sugar, Grass-Fed, 21 Servings

B0DZKLQ45D

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Decision summary

CONSIDERAVERAGE

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

Best for

Buyers comparing price and availability and okay with a middle-of-the-pack option.

Consider another option if

You want one of the best-absorbed options in this category.

Score breakdown

Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.

Dosage quality

2.9/10

Dosing looks weaker than ideal

Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).

Score summary

Vitamin-d: high-bioavailability form declared (Cholecalciferol (D3)). The main limitation is that formula coherence is weak: diluted, decorative or overly complex.

Strengths

Vitamin-d: high-bioavailability form declared (Cholecalciferol (D3))

Weaknesses

Formula coherence is weak: diluted, decorative or overly complex
Vitamin-d: below clinically studied range
Calcium: below clinically studied range

Final verdict

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

Ingredient Analysis & Evidence

A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.

ℹ Evidence is strong, but dose is below the optimal range

A clear drag on the formula: Dose is below the ranges usually used for stronger effects.

Scientific evidence

Meta-analysis

Tang et al. meta-analysis protein supplementation and muscle mass gain

British Journal of Nutrition • 2009

PMID: 22150425.0

⚠ Strong evidence exists, but dose may be too low to be effective

A clear drag on the formula: Dose is likely below clinically useful levels. The declared form supports strong absorption.

Scientific evidence

Meta-analysis

Martineau et al. meta-analysis vitamin D supplementation and respiratory infections

BMJ • 2017

PMID: 26864360.0

Meta-analysis

Bischoff-Ferrari et al. meta-analysis vitamin D fracture prevention

BMJ • 2009

PMID: 20198382.0

⚠ Dose is below commonly used clinical ranges

This is a limiting factor: Dose is likely below clinically useful levels. The label does not specify the form, so absorption quality cannot be verified.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 1500 mgOptimal: 2600 mgUpper: 5000 mgGrade: A

⚠ Strong evidence exists, but dose is below effective threshold

A clear drag on the formula: Dose is likely below clinically useful levels. The label does not specify the form, so absorption quality cannot be verified.

Scientific evidence

Meta-analysis

Tang et al. meta-analysis calcium supplementation and fracture risk

BMJ • 2007

PMID: 17720017.0

⚠ Moderate evidence exists, but dose is below effective threshold

A clear drag on the formula: Dose is likely below clinically useful levels. The label does not specify the form, so absorption quality cannot be verified.

Scientific evidence

Meta-analysis

Pasricha et al. systematic review iron and fatigue in non-anaemic women

BMJ Open • 2012

PMID: 23169929.0

Oath Nutrition Clear Whey Isolate Protein Powder, Frosty Lemonade, 20g Complete Protein per Serving, No Added Sugar, Grass-Fed, 21 Servings

Oath Nutrition Clear Whey Isolate Protein Powder, Frosty Lemonade, 20g Complete Protein per Serving, No Added Sugar, Grass-Fed, 21 Servings

Warnings & notes

Important label or formulation details that may affect how this product should be interpreted.

Formula design looks less coherent than stronger alternatives

The formulation appears less focused than better-built options.

Note
!

Vitamin D dose looks below clinically effective levels

Declared amount falls below ranges used in human trials.

Warning
!

Calcium dose looks below clinically effective levels

Declared amount falls below ranges used in human trials.

Warning

Methodology

Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.

View methodology →

This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.

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