Flax is a gelatinous seed, meaning that it secretes gel when sprouted, and therefore is best used in a mix. It is rich in vitamin F. The seed is used to make linseed oil (flax oil) which has been shown to stimulate the immune system. Flax sprouts have a slightly bitter nut taste if grown too long.
Sprouting overnight, then blending in the morning, with additional water if necessary, makes a great cereal. Just add your favorite sweetener, such as maple syrup.