He began his career in food, working at Covent Garden Fruit and Veg Market. In 1989, he started George Allan’s Greengrocers, a company that built up to an eventual turnover of £7.5 million.Based on his business success, he was invited to co-present Veg Talk on BBC Radio 4 with Charlie Hicks. He was the original presenter of Saturday Kitchen in 2002.
Other TV projects include: Eat Well for Less, Inside the Factory, Turn back Time, Harvest, Supermarket Secrets and Who Do You Think You Are?
Gregg’s autobiography, Life on a Plate was published in 2012 by Orion Books.