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Food News.
Byline: Christine M. Palumbo
Alcohol and Diet
E ssential fatty acids, found in fish, are believed to be helpful for heart health and mood. But a tendency to binge-drink (consuming five or more drinks in one day) may lead to decreased intake of these fatty acids. Researchers at the National Institute on Alcohol Abuse and Alcoholism discovered a connection between omega-3 levels and drinking habits in men after analyzing data on 4,168 people. There were not enough binge-drinking women for the team to evaluate, but presumably they could be similarly affected--maybe from drinking less, given women's smaller size and different metabolism, says neurochemist Norman Salem Jr. Heavy drinking may lead people to choose less nutritious food, including less fish, and ingest fewer antioxidant vitamins and minerals, which "protect omega-3 fatty acids from degradation," Salem explains. For women, adequate daily intake of essential fatty acids is 1.1 grams of alpha linoleic acid (the form of omega-3 in flaxseed, walnut, canola, and soy oils), according to the dietary guidelines of the National Institute of Medicine. Besides supplements, top omega-3 sources are cold-water fish, such as salmon, sardines, tuna, and anchovies.
Craving Control
How tempting food looks may depend in part on a person's levels of the hormone leptin. Researchers at the University of Cambridge, led by Paul Fletcher, studied two subjects who produced no leptin because of a rare genetic disorder associated with overeating and obesity. When they saw images of food, they experienced activity in areas of the ...
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