Whole eggs,
does it really help with Greater muscle-mass gain than six egg whites matched for protein?
research showsThe grade is D with 28 points. Thirty resistance-trained young men were randomized for 12 weeks to three whole eggs or six protein-matched egg whites. Between-group superiority was not found for knee-extensor muscle mass, cross-sectional area, or lean body mass; the lean-mass interaction was P=0.06. Some strength results favored whole eggs, but they cannot replace the failed muscle-mass claim.
ads claimWhole eggs include yolks that egg whites do not, and this trial directly matched protein quantity. Unlike claims about oral egg-white albumin for immediate fatigue relief or serum albumin, this question concerns muscle mass during 12 weeks of resistance training.
Useful facts when choosing a product
- The trial compared three whole eggs with six protein-matched egg whites after exercise, three times weekly for 12 weeks.
- The whole-egg arm consumed yolk and white, whereas the comparator consumed whites only; the intended difference was therefore the whole-food matrix beyond matched protein.
- Muscle mass and cross-sectional area were measured by computed tomography, while lean mass used bioelectrical impedance. Results from these different methods were not collapsed into one number.
Chamgap Semantic Classification Code
Candidate index · review held
F.three-whole-eggs-consumed-after-resistance-exercise.oral.greater-muscle-mass-gain-than-six-egg-whites-matched-for-protein.assess.UNKFoods and beverages > Three whole eggs consumed after resistance exercise > Oral > Greater muscle-mass gain than six egg whites matched for protein > Association or change assessment > Unknown
An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.
What the research actually shows
Thirty resistance-trained young men were randomized 15 per group and all completed 12 weeks. After three weekly workouts they consumed three whole eggs or six protein-matched egg whites. Muscle mass appears among the primary outcomes in NCT04381390, but the trial completed on October 2, 2019 and the record was first submitted on May 1, 2020, so it was not prospectively registered. A registry sponsor label is not evidence of funding. The full original funding and conflict-of-interest statements could not be verified, so the funding source could not be established; there is also no basis to assert American Egg Board funding.
Why this is classified as D (28)
The registered direct muscle-mass comparison was null, the trial had only 30 participants and retrospective registration, and no interval excluded benefit, giving D with 28 points.
Counterpoint. D does not deny that whole eggs provide protein or that some strength outcomes were positive; it addresses only superior muscle-mass gain versus egg whites.
Rejudgment record. Cross-check applied — The peer-reviewed report and NCT04381390 were checked for randomization, completion, intake, muscle outcomes, registration timing, funding, and results
| Endpoint | S | Surrogate marker - laboratory or imaging measures |
| Replication | R1 | Single confirmatory trial |
| Independence | I1 | Mixed funding sources |
| Effect size | E0 | Null |
| Precision | CX | No pooled confidence interval could be confirmed |
Stored derived and displayed grades match; this is not a current recalculation or validity check (D).
Sub-claim grades by effect
This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.
| Effect (sub-claim) | Grade | Basis |
|---|---|---|
| Greater knee-extensor muscle mass and cross-sectional-area gain than egg whites | D | The 30-participant direct trial found no between-group difference. |
| Greater lean-mass gain than egg whites | D | The group-by-time interaction was P=0.06. |
Cross-check — AI research and Codex final gate
Evidence Table
| Study | Design | Sample | Funding | Endpoint | Result | Weight |
|---|---|---|---|---|---|---|
| Bagheri R et al. 2021 | Randomized investigator-blinded parallel 12-week resistance-training trial | 30 randomized, 15 per arm; all 30 completed and were analyzed | Funding source could not be established because the full original funding and conflict statements were not verified | Knee-extensor muscle mass, cross-sectional area, and lean body mass | No group differences in muscle mass or cross-sectional area; lean-mass group-by-time P=0.06 | Only longitudinal direct comparison, limited by 30 participants and retrospective registration |
Receipt — 3 References
All 3 cited sources were verified for existence at the original page (as of 2026-08-03).
Final verification and publication gate: Codex · Evidence date: 2026-08-03 · Corrections: none
Cite this verdict
[Chamgap] Whole eggs x greater muscle gain than egg whites during resistance training — Evidence Grade D·28. 3 cited sources checked. Source: https://chamgap.com/en/verdicts/sports/whole-eggs-versus-egg-whites-resistance-training-muscle-mass/ · CC BY 4.0CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.
What this document does and does not do
Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.