Eating 150 grams of blueberries daily reduces the risk of cardiovascular disease by up to 15 per cent, claim researchers. The research team from UEA's Department of Nutrition and Preventive Medicine, Norwich Medical School, said that blueberries and other berries should be included in dietary strategies to reduce the risk of cardiovascular disease - particularly among at-risk groups. It's widely recognised that lifestyle changes, including making simple changes to food choices, can also help, reported the study published in the journal, 'The American Journal of Clinical Nutrition.' This may be because blueberries are high in naturally occurring compounds called anthocyanins, which are the flavonoids responsible for the red and blue colour in fruits. The team investigated the effects of eating blueberries daily in 138 overweight and obese people, aged between 50 and 75, with Metabolic Syndrome. The six-month study was the longest trial of its kind. They looked at the benefits of eating 150-gram portions (one cup) compared to 75-gram portions (half a cup). The participants consumed the blueberries in freeze-dried form and a placebo group was given a purple-coloured alternative made of artificial colours and flavourings. The simple and attainable message is to consume one cup of blueberries daily to improve cardiovascular health.