Hollings chicken treat strips are a type of natural dog treat made from air-dried chicken. They are marketed as being high in protein, gluten-free, and made with high-quality ingredients. Hollings chicken treat strips primarily contain meat and animal derivatives, with at least 58% chicken. They also contain minerals. Nutritional Content: They are high in protein (52%), with 26% fat, 0.5% crude fiber, and 6.5% crude ash. They contain 440 kcal/100g.