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Eating Sardine Twice A Week May Protect Against Type-2 Diabetes

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Jiya Saini
Jiya Saini is a Journalist and Writer at Revyuh.com. She has been working with us since January 2018. After studying at Jamia Millia University, she is fascinated by smart lifestyle and smart living. She covers technology, games, sports and smart living, as well as good experience in press relations. She is also a freelance trainer for macOS and iOS, and In the past, she has worked with various online news magazines in India and Singapore. Email: jiya (at) revyuh (dot) com

A study has found that regular consumption of Sardine fish may help protect against type 2 diabetes (T2D) and cardiovascular (CV) events.

Regular consumption of sardine provides protection against type 2 diabetes (T2D) and cardiovascular (CV) events, finds a recent study published in the journal Clinical Nutrition. 

This protective effect is due to high quantities of nutrients found in sardines — such as vitamin D, calcium, omega 3, and taurine.

The high levels of unsaturated fats found in sardines and oily fish help in the regulation of cholesterol levels and prevent the onset of cardiovascular diseases (CVDs). Fish could play in preventing T2D, however, there has been little specification about the type of fish and preventive mechanism involved in its health claim.

Against the above background, D.A. Díaz-Rizzolo, Universitat Oberta de Catalunya in Spain, and colleagues hypothesized that consumption of twice a week of sardine, during one year would reduce T2D-developing risk in a population with prediabetes (preDM) and old age.

For this purpose, the researchers recruited 152 subjects with fasting glucose between 100-124 mg/dL aged ≥65 yo. They were randomly distributed among two interventional groups: the control group (CG; n=77) and the sardine group (SG; n=75).

Both the groups received the same T2D-prevention nutrition during a year but only SG had to add 200 g of sardine per week. All the data was collected before to start and end of the diet.

Key findings of the study include:

  • Subjects in SG, significantly compared to CG, decreased percentage classified-individuals in a very high-risk group to develop T2D according to FINDRISC.
  • In addition to increasing HDL-cholesterol and adiponectin and decreasing triglycerides and blood pressure (<0.05), SG showed a lower HOMA-IR.
  • The consumption of sardine characteristics nutrients as omega-3, EPA and DHA, vitamin D, fluorine and taurine were higher for SG.
  • These results agreed with the increased of taurine, fatty acid (FA) omega-3 and bile acids circulating metabolites.
  • Changes erythrocyte membrane FA were detected only in SG with a decrease of 5 omega-6 FA and an increase of 3 omega-3 FA types.

We conclude that a year T2D-prevention diet with sardine supplementation has a greater protective effect against developing T2D and CV events

wrote the authors.

Image Credit: iStock

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