Emerald Green Grass & Apple Tasty Treats. What horse doesn’t like an apple? An age-old delicacy of our four-legged friends apple combined with either our Grass or Alfalfa Pellets makes a perfect way to top up your horse’s levels of key minerals such as calcium important for growth and strength of bones. Naturally occurring elements include sodium which helps towards the prevention of dehydration and many others including iron potassium and magnesium. Apples are also a great source of antioxidants such as vitamins A and C which play a key role in your horse’s health.