Originally published January 15 2006
Purdue study finds calcium helps the body burn fat at higher rates
by Mike Adams, the Health Ranger, NaturalNews Editor
The American Journal of Clinical Nutrition has published a study from Purdue that provides evidence that diets rich in calcium offer the benefit of rapidly burning fats.
Researchers from Purdue University showed a high-calcium diet increased whole-body fat oxidation following a meal, while serum parathyroid hormone (PTH) levels had the opposite effect on fat oxidation.
Published in the December issue of the American Journal of Clinical Nutrition (82, 6:1228-34, 2005), the study involved 19 normal-weight women aged 18 to 30, who were assigned to either a low-calcium (less than 800 mg/d, n=10) or a high-calcium diet (1,000 to 1,400 mg/d, n=9) for one year.
The scientists assessed whole-body fat oxidation by measuring respiratory gas exchange after each subject consumed two isocaloric liquid meals containing 100 mg or 500 mg calcium at baseline and one year; they also measured PTH at baseline and one year.
Results showed the mean one-year change in fat oxidation was higher in the high-calcium group, compared to the low calcium group.
Also, the one-year change in serum log PTH was negatively associated with the one-year change in postprandial fat oxidation after a high-calcium meal, when controlled for the one-year change in total body fat mass.
They concluded a chronic diet high in dairy calcium increases whole-body fat oxidation following a meal, while increases in fasting serum PTH correlate to decreases in postprandial whole-body fat oxidation.
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