Flax seed

Flax seed, also known as linseed, is the seed of the flax plant (Linum usitatissimum). The seeds are small, typically brown or golden, and are harvested from the dried seed pods of the plant. They can be consumed whole, ground, or pressed to extract their oil.

Flax seeds are often added to foods for their nutritional content, particularly their fibre and omega-3 fatty acids. They are commonly found in baked goods like bread and muffins, as well as in cereals, porridge, and health bars. Their ability to absorb water also makes them useful as a binder in vegan baking, sometimes replacing eggs.

Flax seed is not an authorised food additive in the UK and is used as a food ingredient. It is a source of dietary fibre and alpha-linolenic acid (ALA), an omega-3 fatty acid. The UK's Eatwell Guide recommends including sources of fibre in the diet. EFSA has evaluated flax seed for its nutritional properties. Research suggests that consuming flax seed may have beneficial effects on heart health and digestion, though evidence can be mixed and more research is ongoing.