Experts said they were a good source of unsaturated fat, containing polyphenols which help to prevent heart attacks and strokes. The study found that those who consumed at least two portions of nuts a week had a 17 per cent lower risk of death from heart disease, compared with those who only ate them once a fortnight. Over the 12 years that followed, there were 751 cardiovascular events, including 179 deaths. Eating a handful of nuts at least twice a week could cut the risk of dying from heart disease by almost a fifth, research has found. Nuts consumed included… More than 5,000 adults, aged 35 and over, with no history of heart disease, were quizzed about their diet in detail, every two years. Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.