19 Feb 2014 --- EHL Ingredients, a leading importer, blender and packer of natural food ingredients, has reported an increase in demand for its allergen-free ingredients and blends, with its curry powder taking the top spot. Demand for EHL’s allergen-free curry powder blend has increased by 35% within the last year, due to the rise in the number of food allergy sufferers in the UK and more stringent regulations within the food industry.