Holland & Barrett's organic brown linseed can be added to your foods to give a little extra crunch! Sprinkle it on your cereals, add it to your muffins or simply mix it in with your favourite dish. The health benefits of linseed (aka flax or flaxseed) have been known for thousands of years! Holland & Barrett's organic brown linseed can be added to your foods to give a little extra crunch! Sprinkle it on your cereals, add it to your muffins or simply mix it in with your favourite dish. The health benefits of linseed (aka flax or flaxseed) have been known for thousands of years!