Caudwell founded the charity Caudwell Children in 2000. Of the charity, he said: "I wanted to make sure that every penny that was raised would be put to the best use and spent on the children that needed it. My family puts about £2 million a year towards Caudwell Children. In addition I put in a lot of my time and I do a lot of networking. the truth is my fortune isn't enough to help all the children that need help." The charity has proved controversial because it promotes unproven and dubious health practices and has aligned itself with antivaccinationists. The National Autistic Society asked Caudwell's charity to remove claims from its website that it had the society's support.