Herbalife's product range includes protein shakes, protein snacks, nutrition, energy and fitness supplements and personal care products. The Formula 1 protein shake, a soy-based meal-replacement shake, is the number one product. The range also includes products for heart health, digestive health, skin care, and the new 24 sports line released in 2011. Some products are vegetarian, kosher or halal, and Herbalife provides testimonials and advice from health professionals as part of their product marketing