Pea protein vs whey: which builds more muscle?
NCT ID NCT07420933
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether pea protein supplements work as well as whey protein for building muscle and strength in healthy young adults. 34 people took either pea or whey protein twice a day for 8 weeks while doing a resistance training program. Researchers measured changes in lean body mass, strength, and metabolic markers to compare the two proteins.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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34 people
The number who actually took part.
- Started
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Feb 2024
- Finished
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Dec 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 30 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Healthy Adults 18-30y * BMI between 18.5 - 28 kg/m\*\*2 The subjects will be excluded if: * they have a history or current diagnosis of cardiovascular disease, cancer, diabetes, gastrointestinal disorders, or metabolic disorders. * they use tobacco products * consume alcohol as defined as \>2 drinks per day, * follow a special diet * reported recent significant body weight changes (\>5% prior 3 months) * report an intolerance or allergy to ingredients in the supplements. * report regular consumption of other muscle or metabolic stimulating products or drugs such as creatine, other amino acids or protein supplements, growth hormone or derivatives, or ergogenic aids including steroids. * if they answer "no" to any question on the Physical Activity Readiness Questionnaire which would indicate that the subject cannot safely participate in an exercise program.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Texas Woman's University Institute of Health Sciences Houston Center
Houston, Texas, 77008, United States
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