An interventional study of PeptiStrong + whey protein and Whey protein in Healthy Ageing, Protein Supplementation and Muscle Health, sponsored by Nuritas Ltd. Active, not recruiting at 1 site in United Kingdom. Open to participants aged 60 Years to 85 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-28.
Sponsored by Nuritas Ltd · Not applicable, Interventional, and Other
Examining the effects of PeptiStrong and protein on muscle function in older adults
The aim of this study is to compare two protein drinks containing whey protein (derived from milk) in healthy adults aged 60 to 85 years. One group will consume a standard whey protein drink (20g), while the other group will consume a drink with half the total protein dose (10g) made of whey protein and PeptiStrong, a fava bean hydrolysate containing bioactive peptides.
The study will assess whether the lower protein drink containing PeptiStrong will lead to equal or greater improvements than the standard drink in physical function, such as the ability to stand up from a chair, walk at a normal pace, maintain balance, and grip strength. The study will also examine markers related to inflammation, fatigue, and quality of life.
The intended value of this research is to improve understanding of how targeted nutritional strategies may help maintain or improve muscle function in older adults. The findings may help inform future nutritional recommendations and the development of practical dietary interventions aimed at supporting healthy ageing and independence.
Nuritas Ltd is the lead sponsor of 10 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
2.4g PeptiStrong (provides 1.6g protein) + 8.4g of whey protein = 10g total protein
Dietary Supplement: PeptiStrong + whey protein
20g whey protein
Dietary Supplement: Whey protein
Fava bean protein hydrolysate containing bioactive peptides mixed with whey protein as dry powder for drinkable protein shake
Whey protein as dry powder for drinkable protein shake
Hand Grip Strength via hand held dynamometer
Change from baseline to end of study in grip strength as assessed via hand held dynamometer
Time frame: Baseline to Week 4
Chair Stand Test - Part of short performance physical battery
Change from baseline to end of study in physical function assessment via chair stands. This test measures the time taken to complete 5 sit-to-stand repetitions in seconds. A lower time (fewer seconds) = better performance. As part of the full short performance physical battery it is converted to a subscore of 0-4, where a higher score = better performance
Time frame: Baseline to week 4
Gait Speed as part of short performance physical battery
Change from baseline to end of study in physical function assessment assessed as time to walk a fixed distance in seconds and reporting in meters per second. Higher speeds indicate better performance. This is converted to a subscore of 0-4 within the full short performance physical battery
Time frame: Baseline to week 4
6 Minute Walking Endurance Test
Change from baseline to end of study in physical function and endurance assessed as the total distance walked in 6 minutes in meters. A greater distance reflects better walking endurance and functional capacity.
Time frame: Baseline to week 4
Balance test as part of short performance physical battery
Change from baseline to end of study in balance as assessed by the ability to hold three standing positions of increasing difficulty: side-by-side, semi-tandem, and tandem stance in seconds. Higher scores indicate better balance. The overall score is converted to a a sub-score of 0-4 within the full short performance physical battery.
Time frame: Baseline to week 4
Balance assessment via force plates
Change from baseline to end of study in balance as assessed via force plates
Time frame: Baseline to week 4
Quality of Life via the Sarcopenia Quality of Life (SarQoL®) Questionnaire
Change from baseline to end of study in quality of life as measured via subjective SarQOL questionnaire. The total score ranges from 0 to 100, with higher scores reflecting a higher quality of life.
Time frame: Baseline to week 4
Fatigue via Multidimensional Fatigue Inventory Questionnaire
Change from baseline to end of study in self-reported fatigue as assessed via multidimensional fatigue inventory questionnaire. This 20-item questionnaire covers five dimensions: General Fatigue, Physical Fatigue, Mental Fatigue, Reduced Motivation, and Reduced Activity. Each subscale score ranges from 4 to 20, with higher scores indicating greater fatigue
Time frame: Baseline to week 4
C-reactive protein (CRP) via blood test
Change from baseline to the end of study in inflammatory marker C-reactive protein (CRP) in serum as mg/L
Time frame: Baseline to week 4
Interleukins via blood test
Change from baseline to the end of study in Interleukin inflammatory markers in serum as pg/mL
Time frame: Baseline to week 4
Body composition: Muscle mass and body fat via bioelectrical impedance analysis
Change from baseline to end of study in muscle mass and body fat as measured by bioelectrical impedance analysis in kilograms and % of total body weight
Time frame: Baseline to week 4
Plan to share: No
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is active, not recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Nuritas Ltd