Dr Richard Dewhurst at Aberystywth has demonstrated that organic milk has up to 240% higher levels of Omega 3 than ordinary milk.   

Omega 3 fatty acids are essential for good health, playing an important role in maintaining heart health, combating the effects of arthritis and developing healthy brains in children.  Omega 3 fatty acids have to be obtained from food as they cannot be made in the body.  Most people in the UK are deficient in them, you just can't eat enough pilchards! 

Drinking a glass of organic milk a day will provide 10% of the required daily intake of Omega 3.  The explanation is that organic cows in the U.K. and on West Hill Farm eat a lot of red and white clovers, which encourage the production of n-3 fatty acid, alpha-linolenic acid.  The clovers are a natural alternative to the chemically synthesised Nitrogen fertilizers used on conventional farms.

1 pint ordinary milk contains 0.1 g Omega 3 1pint organic milk contains 0.164g to 0.343 Omega 3