Actively Recruiting
Time-restricted Eating (TRE) and Protein in Older Adults
Led by University of Surrey · Updated on 2026-01-02
80
Participants Needed
1
Research Sites
82 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The aim this study is to investigate the effects of time-restricted eating (TRE) on body composition, muscle function and markers of metabolic health of adults over 60 years old. This study will compare different variations of TRE - with and without an additional protein. This study involves attending two study days at the University of Surrey for baseline and end-of-intervention measurement of body composition using a gold-standard dual energy x-ray absorptiometry (DEXA) scan; muscle function using hand grip strength and 30-second sit-to-stand tests; weight. A blood sample will be taken at each study visit to measure markers of lipid and glucose control, and insulin sensitivity. Participants will be randomly allocated to one of four study groups: * control group: maintain habitual dietary patterns * TRE group: fast for 16 hours overnight, eat between 12-8pm * TRE + Protein (AM): fast for 16 hours overnight, eat between 12-8pm; take a 30g plant-based protein supplement in the morning * TRE + Protein (PM): fast for 16 hours overnight, eat between 12-8pm; take a 30g plant-based protein supplement in the afternoon Participants will be asked to follow the intervention according to their allocated group for 8 weeks.
CONDITIONS
Official Title
Time-restricted Eating (TRE) and Protein in Older Adults
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Male or female gender
- Age 60 years or older
- Fasting for 12 hours or less daily
- Body mass index (BMI) between 23 and 30 kg/m2
- Stable weight with no more than 3 kg change in past 3 months
- Regular eating pattern of three meals per day
- Ability to prepare the protein supplement
You will not qualify if you...
- Known kidney problems
- Heart attack or stroke within the past 3 months
- Continuous use of supplemental oxygen for lung or heart failure
- Rheumatoid arthritis
- Parkinson's disease
- Active cancer treatment within the past year
- Insulin-dependent diabetes mellitus
- Taking medications that prevent fasting for 16 hours
- Currently trying or planning to lose weight
- History of eating disorders
- Outside the required age or BMI ranges
- Fasting for longer than 12 hours daily
- Unable to prepare the protein supplement
- Extreme morning or evening chronotype
- Sleep disorders
- Regularly skipping meals
- History of difficulty providing blood samples
- Recent exposure to high-dose radiation
- Vigorous exercise more than three times per week
AI-Screening
AI-Powered Screening
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Trial Site Locations
Total: 1 location
1
University of Surrey
Guildford, United Kingdom, GU2 7XH
Actively Recruiting
Research Team
Y
Yana Petkova
CONTACT
D
Dr Collins
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
4
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