Beetroot juice slashes the risk of suffering a heart attack.
A new study has found that drinking just 70ml of the vegetable juice per day halved the danger of heart attacks and other complications in angina patients with a stent in just six months.
According to the experts, the purple drink contains nitrates that help dilate blood vessels and improve blood flow.
Dr. Krishnaraj Rathod, from Queen Mary University of London, said: "Our patients liked that their treatment was a completely natural product that has no significant side effects.
"We will take this to the next stage of trials in the hope doctors can soon prescribe beetroot juice to ensure stents last longer."
Over 1.3 million people in the UK live with angina and many are fitted with stents to keep their arteries open but they are prone to failure.