The Stamp Collection range from Buxton Foods - Sweet Potato Chips, Vegetable Chips and Plantain Chips with Cilantro - contains no rusk, whey, salt or sugar, and is made from natural ingredients. It is suitable for consumers with food intolerances, like Terence Stamp who endorses the range and founder Elizabeth Buxton's daughter. "Recognition of special diet needs is growing," said Buxton. "It is a significant market trend, and when 20% of your customers may suffer from food intolerances, they cannot be ignored."