Raw Cow’s Milk from grass-fed cows has been found to contain high levels of a polyunsaturated Omega-6 fatty acid called conjugated linoleic acid (CLA) which has been shown to reduce insulin resistance, boost metabolism, increase muscle mass whilst reducing abdominal fat, strengthen the immune system, reduce allergic reactions to food.
Grass fed cows have between 3 and 5 times the amount of this substance than their grain fed counterparts.
Links:
http://www.naturalnews.com/026280.html
Conjugated linoleic acid supplementation for 1 y reduces body fat mass in healthy overweight humans. Am J Clin Nutr. 2004 Jun;79(6):1118-25.
The following is a link to a free online copy of Nutrition & Physical Degeneration by Dr Weston A Price DDS published in 1939. It is not the most recent edition, however, it does provide interesting reading.
http://journeytoforever.org/farm_library/price/pricetoc.html
All content Copyright to Anne Seccombe 2009.