Did you know that the cannabinoid receptor 1 (CB1) is in most parts of the brain, and is in all mammals? This means the body is made to process the compounds in Hemp though what is called the endocannabinoid system (ES). The ES is a part of mammals that have been around for over 500 million years.
The Cannabinoids (CBD) in Hemp can affect the inflammatory system in several ways. They have a direct effect on the nerve transmission of information, so can help normalize the pain signals. Since there is a direct interaction with the nerves, CBD can help with nerve pain. It can also help with bone metabolism, so may help some of the bone pain associated with injuries. The CBDs directly affect the nerve pathways in the gut, reducing some of the inflammation in Inflammatory Bowel disease in humans.
Horses are natural herbivores and readily eat Hemp in most formats. The commonly supplied oils are more expensive to get the doses that horses need but can be used. A powder made from the leaf and bud can be used also. AS with all hemp products, it is important that it be organic to avoid contamination with any chemicals that were in the soil where it was grown.