A sardine-enriched diet may have beneficial effects on cardiovascular risk and alters gut microbiota composition in patients with type 2 diabetes.
In the study, 35 patients who were recently diagnosed with type 2 diabetes were divided into two random groups. One was set to follow a standard diet recommended for diabetes (control group), and the other followed similar guidance but included 100 grams of sardines in their diet five days a week (sardine group) for a duration of six months. Scientists measured their anthropometric and dietary information, fasting glycated hemoglobin, glucose, insulin, adiponectin, inflammatory markers, erythrocyte membrane fatty acid composition and specific bacterial strains before and after the dietary intervention.
In the conclusion, there was no significant difference in glycemic control between the two groups by the end of the course. However, both sets of patients recorded a decrease in plasma insulin. Most notably, the sardine group also saw an increase in adiponectin levels and the omega-3 index, while decreasing the Firmicutes/Bacteroidetes ratio in gut microbiota composition. It advanced the hypothesis, even though the sardine-enriched diet did not significantly alter glycemic control, it could potentially be beneficial in managing cardiovascular risk in type 2 diabetes patients.
