Brits eagerly anticipating their indulgent Christmas feast have been issued a health warning. Experts are advising those who suffer from heartburn to seek treatment from their GP. Heartburn, a condition that causes a burning sensation in the throat and leaves an unpleasant taste in the mouth, is experienced by everyone occasionally. Studies indicate that around three in 10 people in Europe and the US suffer from chronic heartburn. Rich foods, which are a staple of Christmas meals, can trigger