Healthy weight loss cuts cancer risk (health24)

Moderate weight loss reduces levels of inflammation that have been tied to certain cancers, at least in postmenopausal women, a new study suggests.

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According to the findings, older women who lost at least 5% of their body weight through diet alone or diet plus exercise showed significant reductions in key inflammatory blood markers such as C-reactive protein and interleukin-6.

In addition to risk for heart disease, elevated levels of these markers have also been associated with increased risk for several cancers, including breast, colon, lung and endometrial cancer.

The findings appear in the journal Cancer Research.牋Lemon Diet

What the study found?/p>

"Our findings support weight loss through kilojoule reduction and increased exercise as a means for reducing inflammatory biomarkers and thereby potentially reducing cancer risk in overweight and obese postmenopausal women," said researchers led by Dr Anne McTiernan, director of the Prevention Center at the Fred Hutchinson Cancer Research Center, in Seattle.

Aiming to lose 10% of their body weight, the women were either placed on a kilojoule-restricted diet, asked to participate in moderate-to vigorous-aerobic exercise for 45 minutes a day for five days a week, or told to do both.

During the one-year study, C-reactive protein levels went down by about 36% in the diet-alone group and by 42% in the diet and exercise group. Interleukin-6 levels decreased by about 23% in the diet group and 24% in the diet and exercise group, the study showed. There were greater reductions in these levels seen among women who lost at least 5% of their body weight. Exercise alone did not affect levels of inflammation markers.

There was no information on which, if any, of the 438 women in the study went on to develop cancer. But a 40% reduction in C-reactive protein "could be expected to reduce breast, endometrial and other cancer risk in postmenopausal women," the study authors said.

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