Revealed: The vegetable that will leave you passing the most wind over Christmas - As if there wasn't enough hot air passing between relatives this Christmas, we also have to contend with the inevitable expulsion of gas induced by our binge at lunch.

But if you want to do your best to avoid any embarrassing 'who dunnit?' moments, a supermarket has produced a handy table of the most fart-prompting vegetables.

The worst offender is the Jerusalem Artichoke, beating, surprisingly, the much-condemned Brussels sprout, which came in third.

Second was the parsnip with cabbage in fourth and cauliflower in fifth.

Top of the Pops - Sales of trapped wind remedies rocket at Sainsbury's in the winter season, with sales up by around 30% on the annual average in November, December and January.

"Winter is an amazing time for colourful, fibrous vegetables that are fantastically healthy, but which have predictable results in the human digestive system," said a Sainsbury's spokesperson. "Really it's the very things that make them good for us - lots of fibre and complex carbohydrates - that are the culprits and it's a small price to pay for the health benefits. Scoff your winter veg with abandon and blame the household pet, I say."

The Sainsbury's 'top of the pops' list of troublesome veg is based on the amount of prebiotic fibre (a well known cause of digestive gas), carbohydrate and sugars per 100g. There are several sugars - such as raffinose, stachiose and inulin - found in these foods that are thought to contribute to the chemical reaction in the gut that produces intestinal gas.