Hypo-allergenic dog foods: Supply, demand 
overwhelm need

Petfoods labelled hypo-allergenic convey the impression that they have little likelihood of causing an allergic reaction. The term hypo-allergenic has no legal definition and no designated minimum efficacy. In the marketplace, hypo-allergenic foods are ubiquitous. Certain dog food lines are all hypo-allergenic, whereas most brands position one or more products as being hypo-allergenic or sensitive. A food allergy is an individually determined, immune-mediated reaction to a dietary protein. Dogs