Omega 3 is an essential polyunsaturated fatty acid used by the body and may help to maintain a healthy heart and brain function. It is essential because�our�bodies cannot make omega 3 but rather it must be obtained through the diet. It is generally accepted that oily fish are high in omega 3, however, flaxseed is one of nature's richest plant sources of omega 3 with 51 per cent of the fat being this important fatty acid. One serving (30 g/1 oz) of linwoods milled organic flaxseed provides 7.2 g of omega 3.