1st Choice offers special formulas for dogs that have some physical or nutritional problems. Within these formulas we find mainly hypoallergenic and light. The Hypoallergenic formula is a complete food suitable for adult dogs over the age of all who have allergies and/or food intolerances or sensitive stomach. Nutritionally balanced and very appetizing formula with top quality ingredients with duck and potatoes, with natural prebiotics, yeast and ginger extracts to aid digestion. This formula is without cereals. The Light formula is a complete breast food for adult dogs, overweight, or having little physical activity. It is studied with a reduced caloric intake and an enhanced level of L-Carnitine and C.L.A. To metabolize fat and to keep muscle mass lean and to maintain an optimal urinary pH.