Research Roundup

May 2017 Issue




Research Roundup

Citrus Counters Effects of Fatty Meals

The flavonones in citrus fruit may help counter the negative effects of high fat meals on cardiovascular health in middle-aged men, scientists say. On four different occasions, study participants (59 healthy men ages 30 to 65) were given a high-fat breakfast and a moderate-fat lunch along with one of the following: control drink, orange juice, flavonone-rich orange juice, or a whole-orange drink. Blood vessel flow was less impaired when the two fatty meals were followed by any of the three orange drinks compared with the control drink.

(British Journal of Nutrition, December 2016)

Resistant Starch Benefits Health

Foods that contain resistant starches, including potatoes, bananas, grains, and legumes, may improve gut health, blood glucose control, and satiety, according to English researchers. Resistant starch isn’t digested in the small intestine, but is fermented in the large intestine, forming butyrate, which increases blood flow in the colon to help prevent development of abnormal cells in the gut.

(Nutrition Bulletin, January 2017)

Why Berries Boost Heart Health

Berries contain anthocyanins, powerful plant compounds which may play an active role in providing cardiovascular benefits in people with high cholesterol levels, according to Chinese researchers. Anthocyanins give the color to many fruits, like blueberries and black raspberries. In the study, 146 people ages 40 to 65 consumed purified anthocyanins (equivalent to that in 100 grams of fresh blueberries) or placebo for six months. Platelet chemokines, which are involved in inflammatory reactions, increased after placebo intake, but decreased post-anthocyanin intake, correlating to lower levels of inflammatory markers in people with high cholesterol levels.

(Nutrition & Metabolism, November 2016)