Can a Low-Carb app help control diabetes?
NCT ID NCT04916314
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a 12-week low-carbohydrate diet program, delivered through a smartphone app with remote coaching, could help people with type 2 diabetes improve their blood sugar and lose weight. 115 adults recently diagnosed with type 2 diabetes and who were overweight took part. The program included meal plans, peer support, and activity tracking. Researchers measured changes in blood sugar and weight at 3 months and 1 year.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Low carbohydrate diet
- What this could lead to
- If it works, this could offer a practical, app-based way for people with type 2 diabetes to improve blood sugar control and possibly achieve remission.
- What could go wrong
- This is a small, completed trial with only 115 participants. Results may not apply to everyone, and sticking to a low-carb diet long-term can be challenging.
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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115 people
The number who actually took part.
- Started
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Jul 2021
- Finished
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Oct 2023
- 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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40 years and older
- 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: * Participant is willing and able to give informed consent for participation in the study. * Male or Female, aged 40 years or above. * Diagnosed with current type 2 diabetes (i.e. not in remission) in the last 6 years * BMI of ≥27kg/m2 (≥30kg/m2 if ethnicity recorded as white) * Has a smartphone or computer with internet access (and the correct operating system requirements to use the intervention programme) * Are able to complete the eligibility and baseline assessments online * Would like to make changes to their diet or lifestyle to improve their diabetes control, lose weight, or improve their general health Exclusion Criteria: * Unable to understand the study materials and interventions * Currently following a weight loss programme (defined as a structured, prescribed and monitored programme and not a self-directed weight loss attempt) * Pregnant, breastfeeding, or planning to become pregnant during the course of the study * History of bariatric surgery, including gastric banding * Currently using insulin therapy * Proliferative diabetic retinopathy, or maculopathy. * Recent myocardial infarction or stroke (\<3 months) * Renal failure (chronic kidney disease stage 4 or 5) * Current active treatment for cancer (other than skin cancer treated with curative intent by local treatment only) * Their doctor does not feel they are appropriate to participate for another reason (e.g. active eating disorder diagnosis, significant psychological disturbance)
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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
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University of Oxford
Warwick, Select A Region, CV34 4NH, United Kingdom
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