Anthocyanin-rich foods linked to better heart, metabolic health

New Delhi, Aug 15 (TNT): Higher dietary intake of anthocyanins, naturally occurring compounds found in red, blue and purple fruits and vegetables, may be associated with better cardiovascular and metabolic health in otherwise healthy adults, according to a new systematic review and meta-analysis published in The American Journal of Clinical Nutrition.

The researchers reviewed 18 prospective cohort studies reported across 27 publications and 65 randomised controlled trials involving adults without diagnosed disease.

Compared with lower habitual anthocyanin intake, higher intake was associated with a 26 per cent lower risk of cardiovascular disease, 18 per cent lower risk of myocardial infarction, 11 per cent lower risk of type 2 diabetes, nine per cent lower risk of cardiovascular mortality and eight per cent lower risk of hypertension.

The randomised controlled trials also reported improvements in blood-vessel function and insulin concentrations at dietary anthocyanin intakes beginning at 50 mg per day, the researchers said.

Berries are among the rich dietary sources of anthocyanins. USA blueberries can be consumed fresh, frozen or dried and incorporated into yoghurt, oats, smoothies, salads, desserts and other dishes, according to the U.S. Highbush Blueberry Council.

The findings are particularly relevant to India amid growing concerns over cardiovascular disease, hypertension and type 2 diabetes, the statement said, adding that including a wider variety of naturally colourful fruits and vegetables could contribute to overall dietary quality.

“This research reinforces the importance of dietary diversity and the inclusion of naturally colourful foods in our daily meals. USA blueberries offer anthocyanins that support heart health and can be easily incorporated into contemporary Indian eating habits,” said Raj Kapoor, India Representative, U.S. Highbush Blueberry Council.

The study does not suggest that any single food can prevent or treat disease, but supports including anthocyanin-rich foods as part of a balanced diet along with regular physical activity, adequate sleep and appropriate medical guidance.

Lead investigator Professor Aedín Cassidy said the findings indicated that simple dietary changes could contribute to reducing the long-term risk of cardiovascular disease, hypertension and type 2 diabetes.

TNT KS