We are currently working on recipes with other proteins and hope to have in market soon. Our veterinarian would be happy to speak with you about the type of testing and results that were generated to better understand the nature of this allergy. In some instances, a pet can be allergic to chicken in one form but not necessarily all forms. The chicken in Humankind is minimally processed and highly digestible which means that it may be well accepted by dogs that have developed allergies to chicken from highly processed dog food. Please write us at support@Humankindpet.com to be among the first to know when our new proteins are available or to speak to our veterinarian.