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Plant protein powder tested for aching joints and weak muscles in seniors
NCT ID NCT06499012
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether a daily plant protein supplement (Nutrilite All-Plant Protein Booster) could improve muscle function and reduce arthritis symptoms in 139 adults aged 50 to 70 with mild to moderate sarcopenia and osteoarthritis. Participants took either the protein supplement or a placebo twice a day for 12 weeks. Researchers measured changes in physical performance (like walking speed and balance) and joint pain/stiffness to see if the supplement made a difference.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- all-plant protein booster (dietary supplement)
- What this could lead to
- If it works, this could point toward a simple dietary supplement to help older adults maintain muscle strength and ease joint pain from osteoarthritis.
- What could go wrong
- This is a small, completed trial with only 139 participants. The supplement may show no meaningful improvement over placebo, and results may not apply to everyone with these conditions.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
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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139 people
The number who actually took part.
- Started
-
Jul 2025
- Finished
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Oct 2025
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
50 to 70 years
- Sex
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Anyone
- Healthy volunteers
-
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: * Be age 50 to 70 years, female and male * Participants will be required to have mild to moderately OA \& SA evaluated by Kellgren-Lawrence I-II and SARC-Cal, respectively * Participants need to be competent i.e., able to understand what is to take place and able to provide a free decision on agreeing to the activity/taking part on the study on this * Participants must be able to read and understand study instructions and any other relevant study documents * Willing to following the lifestyle restrictions as detailed in the Information Sheet for study * Will to give written informed consent Exclusion Criteria: * Have a fever currently, or for 24 hours before enrollment * Currently participating in another clinical study * Have taken other protein powder products and dietary supplements or medicines containing peptides or hyaluronic acid within the past 6 months (subject to product instructions) * Individuals receiving medical treatment that, in the opinion of the Principal Investigator or Study Physician, may interfere with test results * The participant is an employee of Amway or SPRIM Medical * Subject who is in the treatment of gastrointestinal diseases * Subject with abnormal liver function tests (alanine aminotransferase and aspartate aminotransferase), kidney function tests (blood urea nitrogen and creatinine), blood routine, urine routine, fecal occult blood test, or electrocardiogram. * Subjects have any of the following medical history or have been clinically examined to have the following diseases that may affect the evaluation of the test effect: obvious gastrointestinal dysfunction, liver, kidney, endocrine, blood, respiratory and cardiovascular diseases
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Jinhua Wenrong Hospital
Jinhua, Zhejiang, China
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