This supplement is real sunshine in a bottle. Its purpose is to give the horses extra vitamin D in the winter months. This vitamin D is dissolved in a mixture of flaxseed oil and wheatgerm oil that provide Omega 3 – 6 – 9 fatty acids in ideal proportions. As we all know, vitamin D is important for strong bones. It promotes the absorption of calcium and stops it from leaching quickly from the bones. It also ensures that the muscles work properly and supports optimal resistance to disease.