This a brief article in Dr. Mercola's library : [...] go to this link to read the complete article and you might subscribe to have updates on health issues. Vitamins ... Butter is a rich source of easily absorbed vitamin A, needed for a wide range of functions, from maintaining good vision to keeping the endocrine system in top shape. Butter also contains all the other fat-soluble vitamins (D, E and K2), which are often lacking in the modern industrial diet. Minerals ... Butter is rich in important trace minerals, including manganese, chromium, zinc, copper and selenium (a powerful antioxidant). Butter provides more selenium per gram than wheat germ or herring. Butter is also an excellent source of iodine. Fatty Acids ... Butter provides appreciable amounts of short- and medium-chain fatty acids, which support immune function, boost metabolism and have anti-microbial properties; that is, they fight against pathogenic microorganisms in the intestinal tract. Butter also provides the perfect balance of omega-3 and omega-6 fats. Arachidonic acid in butter is important for brain function, skin health and prostaglandin balance. Conjugated Linoleic Acid (CLA) ... When butter comes from cows eating green grass, it contains high levels of conjugated linoleic acid (CLA), a compound that gives excellent protection against cancer and also helps your body build muscle rather than store fat., ISBN13: 9780963350701 ISBN10: 0963350706 Material Type: plastic_comb