Automated research refresh updated the product evidence set.
Before: Evidence 53 · Safety 66 · Effectiveness 47 · Confidence 71
After: Evidence 53 · Safety 66 · Effectiveness 43 · Confidence 73
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)
More calories. More protein.
Direct product evidence5 papers indexed · 5 claims mapped
Resar evidence panel
0–100 · cited research only
Evidence Score
53
Emerging
Safety Score
66
Good
Effectiveness Score
43
Emerging
Research Confidence
73
Strong
Product Fit Score
39
Limited
Bottom line
Limited evidence (Emerging) — treat claims cautiously and review sources directly.
Product fit is weaker — dose, price, or practical use may not align with what studies tested.
Evidence Score
53
Emerging
Price
$44.00
Resar may earn an affiliate commission on this purchase. Commissions never change scores — see our affiliate disclosure and conflicts policy. Scores reflect cited research, not medical advice.
Compare others in SupplementsTop research
The strongest studies behind this product
Ranked by evidence hierarchy and how closely each study matches this product. Start with the strongest study, then read down. Every claim needs a trail.
Strongest studySupporting evidence92% relevance
Protein Quality, Adipose Epigenetics, and Nutrition in Healthy Aging and Weight Maintenance
Other · 2025
What the research shows
Highlights that higher quality protein intake is associated with better muscle mass retention and healthier weight trajectories in aging populations.
Direct product evidenceRead study
2345
Supporting evidence88% relevance
OR27: Supplementing Breakfast with A Vitamin D and Leucine-Enriched Whey Protein Medical Nutrition Drink Improves Postprandial Muscle Protein Synthesis and Muscle Mass in Healthy Older Adults
Other · Clinical Nutrition · 2016
Direct product evidence
Supporting evidence85% relevance
Dietary Protein to Support Muscle Hypertrophy
Other · Nestlé Nutrition Institute Workshop Series · 2011
Direct product evidence
Supporting evidence80% relevance
OP015 WHICH NUTRITIONAL PROTEIN STRATEGY TO RECOVER MUSCLE MASS AFTER PROLONGED IMMOBILIZATION DURING AGING?
Other · Clinical Nutrition Supplements · 2012
Direct product evidence
Observational evidence70% relevance
Students choosing fat-free chocolate milk during school lunch consume more calories, total sugar, protein, minerals and vitamins at lunch
Observational · Public Health Nutrition · 2021
Category-level evidence
Scores reflect these cited studies, not medical advice. Expand the full evidence detail below for protocols, dose context, and reported side effects.
Did this clinical breakdown make sense?
Share this evidence report
Send a link to this page so others can read the same breakdown.
Claim ledger
Every claim, mapped to its source
Each product claim below is tied to a specific paper with study type, match strength, and limitations. Nothing here is medical advice — it is a research trail you can audit.
Claim match reflects how closely a specific paper supports this benefit — not AI confidence or medical certainty.
ClaimEvidence directnessMatchStudy type
Full evidence detail
Study-by-study breakdown
Each paper below is ranked for this listing. Start with the highest match, then expand any study for a plain-language readout.
How to read this section
- Match % - how closely the study matches this product (not overall scientific quality).
- Evidence type - study design (RCT, review, etc.) and whether it is direct, category-level, or indirect.
- What it found - short summary and quoted extract from the paper metadata. Not medical advice.
Direct product evidenceThis study closely matches this product or its active ingredient.
In plain language
Synthesizes mechanistic and translational evidence that adequate animal‑derived protein supports skeletal muscle maintenance, reduces adipose inflammation, and may prevent sarcopenic obesity in older adults. [1]
What the study reported
Verified extract — not AI generated
“Highlights that higher quality protein intake is associated with better muscle mass retention and healthier weight trajectories in aging populations.”
How it was used
Suggested use aligns with typical label directions: consume the recommended serving(s) daily to meet increased protein needs.
Side effects noted
No adverse effects reported in the review.
Caveats
Being a narrative review, it does not present new experimental data and relies on existing studies of varying quality.
Transparency
Score history
Human review is pending for this listing.
Reviews
Shopper feedback
4.5
average rating
34,766 Amazon reviews were available from the listing metadata.