Canine Caviar Special Needs Trout Dry Dog FoodBenefits Limited Ingredient Diet Special Needs Entre Alkalizing is a balanced diet formulated to meet the requirements of senior or overweight dogs. Special Needs Entre Alkalizing provides the necessary nutrition to keep your pet healthy and is ideal for dogs with sensitive digestive tracts. Health: Special Needs Entre Alkalizing is limited ingredient holistic diet that uses the highest quality protein and a single beneficial complex carbohydrate.