Wellness Simple dog food formulas keep their ingredients simple with single source of protein and digestible carbohydrates that breakdown easy, without the extra fillers or additives found in other foods. (moberrypets.com)
Wellness Simple Limited Ingredient Diet dog food formulas keep it simple with a balance of single source of protein and easily digestible carbohydrates, without extra fillers or additives, including no meat by - products, wheat, corn, dairy, eggs, artificial preservatives, colors or flavors. (amazon.co.uk)
Adding in single sources of protein or carbohydrates one by one, allowing for time to see if there is an allergic reaction to identify the culprit (wileypup.com)