Is Conjugated Linoleic Acid Safe with Metformin?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Discuss use with your doctor before starting CLA. Monitor HbA1c and fasting glucose at regular intervals. Report any worsening blood sugar control or unexpected changes in glucose readings.
Why this interaction occurs
Some clinical studies suggest CLA may induce or worsen insulin resistance in certain populations, particularly in individuals with type 2 diabetes. This could counteract Metformin's mechanism of improving insulin sensitivity, potentially reducing glycemic control efficacy.
Evidence
Evidence level: limited.
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 432,898 reports mentioning Metformin. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Metformin + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Conjugated Linoleic Acid interactions → · All Metformin interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.