EVIDENCE-BASED SUPPLEMENT SCORING
2.4/10
SKIP

Confidence: 46%

Isopure Essentials 100% Whey Protein Powder, with Vitamins, 20g Protein Per Serving, Unflavored, 13 Servings (Pack of 1)

Isopure Essentials 100% Whey Protein Powder, with Vitamins, 20g Protein Per Serving, Unflavored, 13 Servings (Pack of 1)

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Decision summary

SKIPSKIP

Not a strong option overall. The product is materially held back by weaker ingredient form quality.

Best for

Very few buyers — better options are usually available.

Consider another option if

You care a lot about label clarity and want fewer unknowns.

Score breakdown

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

Dosage quality

2.1/10

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).

Multi-ingredient formulation analysis

Dose 2.1/10 · Bioavailability 0/10 · Coherence 0/10

Dose quality suggests a diluted formulation.

Ingredient form quality suggests suboptimal ingredient forms.

Some ingredient forms are not declared on the label.

This is a multi-ingredient product. The score reflects formulation quality, not efficacy for a specific health goal.

Score summary

The formula stays relatively clean on excipients. The main limitation is that vitamin-a: below clinically studied range.

Strengths

The formula stays relatively clean on excipients
The supporting evidence profile is relatively strong
The safety profile looks solid

Weaknesses

Vitamin-a: below clinically studied range
Calcium: chemical form not specified on label
Vitamin-a: chemical form not specified on label

Final verdict

Not a strong option overall. The product is materially held back by weaker ingredient form quality.

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.

⚠ 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

⚠ Dose is below commonly used clinical ranges

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.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 700 mcgOptimal: 900 mcgUpper: 3000 mcgGrade: A

⚠ Strong evidence exists, but dose is below effective threshold

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.

Scientific evidence

Meta-analysis

Singh & Das Cochrane review zinc for common cold

Cochrane Database of Systematic Reviews • 2011

PMID: 22553186.0

RCT

Prasad et al. RCT zinc supplementation and testosterone in elderly men

Nutrition • 1996

PMID: 8875519.0

⚠ Strong evidence exists, but dose is below effective threshold

One of the weaker points: Dose is likely below clinically useful levels. The label does not specify the form, so absorption quality cannot be verified.

Scientific evidence

Systematic review

Boyle et al. systematic review magnesium and subjective anxiety

Nutrients • 2017

PMID: 28145455.0

Meta-analysis

Dong et al. meta-analysis magnesium intake and type 2 diabetes risk

Diabetes Care • 2011

PMID: 21868780.0

⚠ 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: 0.9 mgOptimal: 1.5 mgUpper: 10 mgGrade: B

⚠ Dose is below commonly used clinical ranges

A clear drag on the formula: Dose is likely below clinically useful levels. The declared form is acceptable, but not among the best-absorbed options.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 1.1 mgOptimal: 10 mgUpper: 40 mgGrade: B
Isopure Essentials 100% Whey Protein Powder, with Vitamins, 20g Protein Per Serving, Unflavored, 13 Servings (Pack of 1)

Isopure Essentials 100% Whey Protein Powder, with Vitamins, 20g Protein Per Serving, Unflavored, 13 Servings (Pack of 1)

Warnings & notes

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

!

Vitamin A dose looks below clinically effective levels

Declared amount falls below ranges used in human trials.

Warning
i

Calcium form is not clearly declared

Exact ingredient form is not disclosed on the label.

Info
i

Vitamin A form is not clearly declared

Exact ingredient form is not disclosed on the label.

Info

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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