Whey protein may tame blood sugar in prediabetes and diabetes
NCT ID NCT06694155
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether drinking whey protein twice a day can improve blood sugar and insulin levels in people with prediabetes or type 2 diabetes. Researchers will measure blood sugar control and appetite in 40 adults aged 50-70 over two 7-day periods. The goal is to see if a simple dietary change can help manage blood sugar.
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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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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2025
- Expected to finish
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Mar 2027
An estimate. End dates often move.
- 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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50 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: 1. Males and females ages 50-70 years. 2. Body mass index between 25-45 kg/m2 3. Capable of providing informed consent. 4. COVID-19 negative and/or asymptomatic. 5. Willing to abstain from drinking alcohol or consuming marijuana and CBD products during the 7-day study meal period on two occasions. 6. HbA1c: 5.7-6.4% or 6.5% to 7.5% or fasting glucose ≥100 mg/dL Exclusion Criteria: 1. Subject who does not/will not eat dairy protein sources. 2. Subjects taking exogenous insulin injections or GLP /GIP injections or other appetite suppressants. 3. Unwilling to keep a detailed 7 day food journal on two occasions 4. Unwilling to wear a CGM for 7 days on two occasions and share the data with the research team. 5. Lactose intolerance. 6. Hemoglobin \<10g/dL at screening. 7. History of chemotherapy or radiation therapy for cancer in the 6 months prior to enrollment. 8. History of gastrointestinal bypass/reduction surgery. 9. Pregnant or lactating individuals. 10. History of a chronic inflammatory disease (e.g. Lupus, Crohn's disease) 11. Currently receiving androgen (e.g., testosterone) or anabolic (e.g., GH, IGF-I) therapy. 12. Currently using corticosteroid medications (cortisone, hydrocortisone, prednisone, etc.). 13. Unwilling to avoid using protein or amino-acid supplements during participation. 14. Unwilling to fast overnight. 15. Any medical condition or medication that the PI or clinical study staff finds contradictory to this study.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Arkansas for Medical Sciences
RECRUITINGLittle Rock, Arkansas, 72202, United States
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