N L Keim, US Department of Agriculture, Davis, CA, USA
P J Havel, University of California at Davis, Davis, CA, USA
Fructose, a monosaccharide, is naturally present in fruits and is used in many food products as a sweetener. This article reviews the properties and sources of fructose in the food supply, the estimated intake of fructose in Western diets, the intestinal absorption of fructose, and the metabolism of fructose and its effect on lipid and glucose metabolism. The health implications of increased consumption of fructose are discussed, and inborn errors of fructose metabolism are described.
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For many years, scientists have been playing out the ingredients that make breast milk the perfect food for babies. They've discovered to day over 200 close compounds to fight infection, help the immune system mature, aid in digestion, and support brain growth - nature made properties that science simply cannot copy. The important long term benefits of breast feeding include reduced risk of asthma, allergies, obesity, and some forms of childhood cancer. The more that scientists continue to learn, the better breast milk looks.