Thu, Mar 2, 2017 | updated 12:01 AM IST

Few nuts a day can keep inflammation at bay

Updated: Jul 30, 2016 10:52 IST

Washington D.C, Jul 30 (ANI): You may want to add a handful of almonds and walnuts to your day as a recent study has linked greater intake of nuts with lower levels of biomarkers of inflammation.

This finding of the Brigham and Women's Hospital study of more than 5,000 people may help explain the health benefits of nuts.

"Population studies have consistently supported a protective role of nuts against cardiometabolic disorders such as cardiovascular disease and type 2 diabetes, and we know that inflammation is a key process in the development of these diseases," said corresponding author Ying Bao. "Our new work suggests that nuts may exert their beneficial effects in part by reducing systemic inflammation."

The research team performed a cross-sectional analysis of data from the Nurses' Health Study, which includes more than 120,000 female registered nurses, and from the Health Professionals Follow-Up Study, which includes more than 50,000 male health professionals.

The team assessed diet using questionnaires and looked at the levels of certain telltale proteins known as biomarkers in blood samples collected from the study participants. They measured three well-established biomarkers of inflammation: C-reactive protein (CRP), interleukin 6 (IL6) and tumor necrosis factor receptor 2 (TNFR2).

After adjusting for age, medical history, lifestyle and other variables, they found that participants who had consumed five or more servings of nuts per week had lower levels of CRP and IL6 than those who never or almost never ate nuts. In addition, people who substituted three servings per week of nuts in place of red meat, processed meat, eggs or refined grains had significantly lower levels of CRP and IL6.

Peanuts and tree nuts contain a number of healthful components including magnesium, fiber, L-arginine, antioxidants and unsaturated fatty acids such as a-linolenic acid. Researchers have not yet determined which of these components, or if the combination of all of them, may offer protection against inflammation, but Bao and her colleagues are interested in exploring this further through clinical trials that would regulate and monitor diet.

"Much remains unknown about how our diet influences inflammation and, in turn, our risk of disease," said Bao. "But our study supports an overall healthful role for nuts in the diet and suggests reducing inflammation as a potential mechanism that may help explain the benefits of nuts on cardiometabolic diseases."

The study appears in the American Journal of Clinical Nutrition. (ANI)

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