Red grape juice could be a drug-free alternative to Viagra, scientists have found.
The drink — sold in supermarkets for about £2.30 ($AUD4.50) a litre — can cut the risk of erectile dysfunction by up to 80 per cent, they claim.
Now researchers are urging all men aged over 40 to down a glass of it at least five times a week.
The study – which was not funded by a commercial drinks company — also found most other fruit drinks had little or no major benefit.
Regular consumption of apple, orange, pineapple or tomato juice did not seem to protect men against flagging sexual function.
Neither did fizzy drinks, according to findings published in the journal The Aging Male.
Scientists at Tianjin Medical University General Hospital in Tianjin, China, studied the drinking habits of 1,500 middle-aged men and compared the data with how many reported problems with arousal.
In a report on their findings they concluded: “Grape juice has many phenolic compounds with health benefits and red grape juice has more of these than white.” Numerous studies have found a healthy diet and regular exercise can protect performance.
But it has not been clear until now precisely what drinks can help.
Erectile dysfunction is thought to affect half of all men over 40 in the UK.
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