Flax or linseed originated in the middle east thousands of years ago. Flax seeds are popular as a health food due to their omega-3 fats, fibre and many other plant compounds. Flax seeds are either yellow or brown and are sold either whole, ground or roasted and are also processed into flaxseed oil. Flax seeds have many health benefits such as the reduced risk of heart disease, type 2 diabetes and can cer. They also improve digestion.