A Limited Ingredient Diet (LID) is a type of eating plan that focuses on a small number of ingredients. It is often used to help identify food allergies or sensitivities by eliminating potential triggers. This diet typically includes a single protein source and a few select carbohydrates and fats, making it easier to monitor reactions to specific foods. LIDs are commonly recommended for pets, particularly dogs and cats, to address issues like skin allergies or digestive problems. Many commercial pet foods are available that adhere to the LID concept, featuring simple ingredient lists to support better health and well-being for animals like dogs and cats.