Fish oil supplements won't protect you from diabetes
If you are popping fish oil supplements to protect yourself against diabetes, you may be mistaken. According to the researchers, Omega-3 fats have little or no effect on risk of Type 2 diabetes.
Increased consumption of omega 3 fats is widely promoted because of a common belief that it will protect against, or even reverse, conditions such as diabetes.
According to the team from University of East Anglia (UEA), omega 3 supplements offer no benefit.
"Our previous research has shown that long-chain omega 3 supplements, including fish oils, do not protect against conditions such as heart disease, stroke or death. This review shows that they do not prevent or treat diabetes either," said Dr Lee Hooper, from UEA's Norwich Medical School.
"Omega-3 supplements should not be encouraged for diabetes prevention or treatment," he added.
The research team assessed the effects of long-chain omega-3 fats, ALA, omega-6 and polyunsaturated fatty acids (PUFAs) – taken as supplementary capsules, or via enriched or naturally rich foods.
Participants included men and women, some healthy and others with existing diabetes, from North America, South America, Europe, Australia and Asia, in studies published from the 1960s until 2018.
Participants were randomly assigned to increase their polyunsaturated fats or to maintain their usual intake for at least six months.
The results show that increasing long-chain omega-3 had little or no effect on diabetes diagnosis or glucose metabolism, but high doses, at levels found in some supplements, could worsen glucose metabolism.
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