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------------ Calcium for Weight Loss
------------------- Calcium for Weight Loss
Calcium for Weight Loss
------------------- Psst, got milk? Calcium may be newest weight-loss secret. A new study provides more evidence that calcium can fight body fat and help keep your weight under control.
Researchers found that adolescent girls who consumed more calcium weighed less and had less body fat than girls who consumed same amount of calories from other sources. Previous studies have shown that a higher calcium intake can block body fat production in adults and preschool children, but this is one of first studies to show that it might have same effect in body-conscious preteen and teenage girls.
The study, presented this week at Experimental Biology 2003 meeting in San Diego, involved an ethnically mixed group of 321 girls aged nine to 14.
Each of girls recorded everything she ate and drank, along with any calcium or vitamin supplements, for three days. Researchers also measured girls' physical activity, weight, and amount of body fat just above hipbone -- a measure of abdominal fat.
Not surprisingly, they found that girls who consumed more total calories and exercised less weighed more and had more body fat. But when researchers compared girls with similar calorie intake, physical activity level, and size, they found that girls who consumed more calcium on average weighed less.
Researchers say most of calcium in girls' diet came from dairy sources, and it didn't take much to make a difference in their body fat and weight. The study found an increase of one serving of dairy, such as a cup of milk or thumb-sized piece of cheese containing about 300 mg of calcium, was associated with about half an inch less abdominal fat and nearly 2 pounds in lower weight.
But researcher Rachel Novotny, PhD, RD, says findings shouldn't be interpreted as an excuse to add more cheese and other calcium-rich dairy products to your diet in hopes of stimulating weight loss.
"It doesn't mean that just eating more dairy can help you lose weight," says Novotny, professor and chair of department of human nutrition, food and animal sciences at University of Hawaii at Manoa.
Calories are still bottom line
------------------------------- His findings, published in this week's Journal of "Calories are still bottom line," Novotny tells WebMD. "Does composition of calories matter? Yes, having more of them come from calcium-rich foods is associated with lower weight and lower body fat."
In light of current obesity epidemic, Novotny says these findings might provide a new way to help set up children for a healthy body weight later in life. Although reducing overall calorie intake and increasing physical activity are most effective means to promote weight loss and reduce body fat in people of any age, she says a relatively small change in calcium intake might also lower body fat.