Britons who count a pina colada as part of five-a-day

ITS key ingredient is a liberal shot of rum, but one in ten people believe a pina colada cocktail is fruity enough to count as one of their five-a-day.

While it may have a tropical blend of coconut milk and pineapple juice, and is usually garnished with a slice of pineapple and a maraschino cherry, not even Del Boy in Only Fools And Horses – for whom it was a favourite – considered it a health drink.

But the survey of 2,000 people found a number of other cocktails were also considered as counting towards the five daily portions of fruit and veg the NHS recommends in a healthy diet. They included a porn star martini – vanilla, vodka, lime, prosecco and passion fruit – and a Bloody Mary, which contains vodka, tomato juice, celery, Tabasco and Worcestershire sauce.

The study by Bassetts Vitamins also found 11 per cent considered a glass of wine as one of their five-a-day because it is made from grapes.

Anything containing alcohol is normally discounted by health experts.