Flaxseed oil shows promise for blood sugar control
NCT ID NCT05053347
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether taking flaxseed oil capsules (rich in alpha linolenic acid) for 24 weeks could improve blood sugar levels in 94 adults with elevated blood sugar or mild type 2 diabetes. Participants also had their gut bacteria and fatty acids measured. The goal was to see if this natural supplement could help manage glucose and metabolism.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Flaxseed oil (alpha linolenic acid)
- What this could lead to
- If it works, this could point toward a simple dietary supplement to help manage blood sugar levels in people with prediabetes or mild diabetes.
- What could go wrong
- This is a small, completed trial with 94 participants. The effect may be modest, and results may not apply to everyone with diabetes.
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
-
94 people
The number who actually took part.
- Started
-
Jul 2022
- Finished
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Dec 2024
- 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
-
30 to 65 years
- Sex
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Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Fasting blood glucose 6.1-8.4mmol /L; * HbA1c 5.7-7.0%; * Patients with previously diagnosed type 2 diabetes with stable drug hypoglycemic treatment and blood glucose controlled well. Exclusion Criteria: * Under 30 years old or over 75 years old; * Suffering from severe metabolic disorders, malignancies, psychiatric conditions; * undergoing insulin therapy, or antibiotic/probiotic use for more than three consecutive days in the last month. * Daily cooking oil is flaxseed oil, rapeseed oil or other α -linolenic acid rich vegetable oil; * Intake more than 20g walnuts per day or more than 100g fatty fish per week in the last month; * Take nutritional supplements, such as fish oil capsules, perilla seed oil and flaxseed oil capsules, for nearly one month; * Allergic to the content of intervention; * Failure to eat the tested sample as prescribed and affect the efficacy or safety judgment.
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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
-
Sinopharm Dongfeng General Hospital
Shiyan, Hubei, 442000, China
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