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Increasing calcium intake from 700 mg to 2300 mg per day increases fat excretion by 55 calories
Thursday, December 18, 2008 7:38 am Email this article
Eating a high-calcium diet containing 2300 mg of calcium per day increase fat excretion by 55 calories per day compared to eating a low-calcium diet containing only 700 mg per day according to a new study from Professor Arne Astrup from the University of Copenhagen in Frederiksberg, Denmark and others.
Fat excretion was an average of 11.5 grams of fat equal to 104 calories per day while on the high-calcium diet versus 5.4 grams of fat equal to 49 calories on the low-calcium diet. Type of Fat Excreted
Type of Fat Excreted: Saturated, monounsaturated and polyunsaturated
Saturated, monounsaturated and polyunsaturated fats were all excreted to a greater degree on the high calcium, with monounsaturated fat being excreted more than saturated fat.
Saturated fatsare found abundantly in foods such as cheese, butter and meat.
Monounsaturated fatsare found abundantly in foods such as olive oil.
Polyunsaturated fatsare found abundantly in foods such as vegetable oil.
Subjects: 11 people, two different diets for one week each
The study involved 11 people who were fed two different diets for seven days, one high in calcium, and the other low in calcium.
Conclusion: Increased excretion of fat may explain weight loss with high-calcium diets
“Increasing the intake of calcium from low-fat dairy products by 1600 mg [per day] for 7 days doubled total fecal fat excretion… The results may partially explain why a high-calcium diet can produce weight loss.” the researchers concluded.
Bendsen N, Hother AL, Jensen S, Lorenzen J, Astrup A. Effect of dairy calcium on fecal fat excretion: A randomized crossover trial. Int J Obes (Lond). 2008 Dec, 32(12):1816-24.
AUTHOR’S CONTACT INFORMATION
Professor Arne Astrup
Faculty of Life Sciences
Department of Human Nutrition
Centre for Advanced Food Studies
University of Copenhagen
Frederiksberg DK-1958, Denmark
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