Ground flaxseed contains high levels of dietary fiber including lignans, an abundance of micronutrients and omega-3 fatty acids. Flax seeds come in two basic varieties: (1) brown; and (2) yellow or golden. Most types have similar nutritional characteristics and equal amounts of short-chain omega-3 fatty acids. The exception is a type of yellow flax called Linola or solin, which has a completely different oil profile and is very low in omega-3. Although brown flax can be consumed as readily as yellow, and has been for thousands of years, it is better known as an ingredient in paints, fiber and cattle feed. Flaxseed is a nutrient dense organic compound, substances that yield a high level of nutrients are extremely effective in improving a health when employed as a feed additives. The VitaHound company has included this substance as a main ingredient in their dog supplement.