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Changing Chinese Attitudes to Brown Rice

One in ten Chinese adults is estimated to have diabetes, with another 16% on the verge of developing it. With a rate of increase in diabetes faster than in Europe or the U.S., Chinese nutrition experts seeking to promote whole grain brown rice in China carried out a pilot study with 32 Shanghai residents, to learn about attitudes to brown rice. Only a quarter of the group had ever tried brown rice, and almost all (30 of 32) ate white rice daily. While most participants had an inferior view of brown rice before the project, after tasting it and learning of its health benefits, their views became more positive, and 27 of the 32 expressed a willingness to participate in a future long-term brown rice intervention study.
Journal of the American Dietetic Association. August 2010; 110(8): 1216-21.

Sprouting (Malting) Millet Makes Some Minerals More Bioavailable

In India and some other countries, sprouted (malted) grains are commonly used as weaning foods for infants and as easily-digested foods for the elderly and infirm.  A study at the Central Food Technological Research Institute in Mysore, India, measured the changes caused by malting finger millet, wheat and barley. They found that malting millet increased the bioaccessibility of iron (> 300%) and manganese (17%), and calcium (“marginally”), while reducing bioaccessibility of zinc and making no difference in copper. The effects of malting on different minerals varied widely by grain.
Journal of Agricultural and Food Chemistry. 14 July 2010; 58(13):8100-3.

Black Rice Bran High in Antioxidants

A team of researchers at Cornell University, including WGC Scientific Advisor Rui Hai Liu, analyzed the phenolic content and antioxidant activity of 12 diverse varieties of black rice, and found that antioxidants were about six times higher in black rice than in common brown/white rice. The black rice bran had higher content of phenolics, flavonoids and anthocyanins.
Journal of Agricultural and Food Chemistry, July 14, 2010; 58 (13): 7580-7.

Switch to Brown Rice Reduces Diabetes Risk in Men and Women

Scientists at the Harvard School of Public Health followed 39,765 men and 157,463 women as part of the Health Professionals Follow-up Study and the Nurses’ Health Study I and II. They found that those eating several servings of white rice per week had a higher risk of Type 2 diabetes and that those eating 2 or more servings of brown rice had a lower risk. They estimate that replacing about two servings a week of white rice with the same amount of brown rice would lower diabetes risk 16%.
Archives of Internal Medicine. June 14, 2010; 170 (11): 96-9.

All Millet Varieties Show High Antioxidant Activity

At the Memorial University of Newfoundland in Canada, a team of biochemists analyzed the antioxidant activity and phenolic content of several varieties of millet: kodo, finger, foxtail, proso, pearl, and little millets. Kodo millet showed the highest phenolic content, and proso millet the least. All varieties showed high antioxidant activity, in both soluble and bound fractions.
Journal of Agricultural and Food Chemistry, 9 June 2010; 58(11):6706-14.

Naturally Gluten-Free Grains May Be Cross-Contaminated

A Polish team from the Instytut Zywnosci in Warsaw analyzed 22 gluten-free products and 19 naturally gluten-free grains and flours, for gluten content. Gluten content in the products ranged from 5.19 to 57.16 mg/kg. In the inherently gluten-free grains and flours, no gluten was detected in rice and buckwheat samples, but was detected in rice flakes (7.05 mg/kg) in pearl millet (27.51 mg/kg) and in oats (>100 mg/kg). ?(Poland)
Rocz Panstw Zaki Hig. 2010; 61(1):51-5. ??

Meanwhile, in the U.S., Tricia Thompson, MS, RD, a nutrition consultant specializing in gluten-free diets, arranged for gluten-testing of 22 retail samples of inherently gluten-free grains, seeds, and flours. She found contamination of 20 to 2925 ppm in seven of 22 samples, putting them over the proposed FDA limit of 20 ppm, with lower levels in some others. Both articles point to the importance of gluten-free certification even on foods that are naturally gluten-free, such as millet.?(USA)
Journal of the American Dietetic Association. June 2010; 110(6):937-40.

Millet consumption decreases triglycerides and C-reactive protein

Scientists in Seoul, South Korea, fed a high-fat diet to rats for 8 weeks to induce hyperlipidemia, then randomly divided into four diet groups: white rice, sorghum, foxtail millet and proso millet for the next 4 weeks. At the end of the study, triglycerides were significantly lower in the two groups consuming foxtail or proso millet, and levels of C-reactive protein were lowest in the foxtail millet group. The researchers concluded that millet may be useful in preventing cardiovascular disease.
Nutrition Research. April 2010; 30(4):290-6.

Brown Rice Cuts Diabetes Risk

For several years, researchers in Boston followed 39,765 men and 157,463 women with no history of type 2 diabetes. During a cumulative 3,318,196 person-years of follow-up, 10,507 people developed type 2 diabetes. After adjusting for age and other factors, the study found that those who ate two or more servings of brown rice per week had an 11 percent lower risk of diabetes compared to those who ate brown rice less than once a month. Conversely, those eating white rice five or more times per week increased the risk of type 2 diabetes by 17 percent. Researchers recommended replacing white rice in the diet with brown rice – or, even better, with a variety of whole grains.
Presented at the American Heart Association’s Nutrition, Physical Activity and Metabolism conference, March 3, 2010.

Quinoa Offers Antioxidants for Gluten-Free Diets

Researchers suggest that adding quinoa or buckwheat to gluten-free products significantly increases their polyphenol content, as compared to typical gluten-free products made with rice, corn, and potato flour. Products made with quinoa or buckwheat contained more antioxidants compared with both wheat products and the control gluten-free products. Also of note: antioxidant activity increased with sprouting, and decreased with breadmaking.
Food Chemistry, March 2010; 119 (2): 770-778.

Whole Grain Corn High in Resistant Starch Satisfies Longer

An increasing body of research shows that resistant starch, a newly-recognized type of dietary fiber found in grains, cold potatoes, legumes and other foods, has many health benefits. Now researchers at the University of Toronto have found that certain whole grain varieties with naturally-high levels of resistant starch may be especially good at making us feel full longer. In the study, 17 male volunteers consumed five different test soups, at one week intervals, after which scientists recorded their glycemic response and their food intake at various intervals over the next few hours. Eating whole grain corn soup with 66% resistant starch content reduced subsequent food intake by 15% compared to eating a high-glycemic control soup.
American Journal of Clinical Nutrition, February 17, 2010 doi:10.3945/ajcn.2009.28443

Ready-to-eat Oat Cereal May Help Reduce Waist Circumference

Researchers investigated the impact of regularly consuming a whole grain oat cereal during the course of a dietary program in 204 overweight or obese adults. In the study, one randomized group of subjects consumed two servings per day of a ready-to-eat oat cereal in place of a low-fiber food of equivalent calories (control, which was given to the second group of subjects). LDL cholesterol and waist circumference were reduced significantly more among those receiving the whole grain ready-to-eat oat cereal. Body weight, triglycerides and HDL cholesterol were not significantly different between the two groups.
Journal of the American Dietetic Association, Feb 2010;110(2):205-14

INTAKE OF WHOLE GRAINS LOWER THAN RECOMMENDED AMONG ADOLESCENTS

Project EAT (Eating Among Teens)-II revealed that intake of whole grains among adolescents was lower than recommended amounts. The study of 792 adolescents and 1,668 young adults also discovered a correlation between certain factors and whole grain intake. Home availability of whole-grain bread, self-efficacy to consume at least 3 daily servings of whole grains, and preference for the taste of whole-grain bread were associated with eating more whole grains during adolescence and young adulthood, while fast food intake was associated with eating fewer whole grains.
Journal of the American Dietetic Association, Feb 2010;110(2):230-7.

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