An unhealthy diet predisposes our horses to diseases , including laminitis, tying up, colic, diarroea and abnormal behaviours (which used to be called vices). Just like humans, unhealthy diets for horses tend to contain too many foods not natural to them- such as starchy grain and lush pasture grass. A list of healthy guidelines for your horse could be like this:
Eat plenty of fibrous foods, and preferably mostly unprocessed - at least one per ...