Corn

Whole Grain Intake in Latin America Falls Short of Recommendations

Dietary guidelines around the world recommend making more of our grains whole, and researchers wonder if people in different countries are meeting these goals. In a study of 9,128 people across eight Latin American countries, the average person was eating less than one full serving (only 14.7 grams) of whole grain foods per day. Women and older adults were more likely to eat more whole grains, while people with lower incomes were less likely to eat more whole grains. The most commonly eaten whole grains in the survey were oatmeal, masa harina, whole wheat bread, corn chips, and wheat crackers.
European Journal of Nutrition. 2021 Jul 7. doi: 10.1007/s00394-021-02635-8.

Diet Quality / Nutrients
Diet 
Traditional Diets, General

Whole Grains Linked with Lower Risk of Type 2 Diabetes

In a large study of nearly 200,000 US adults, those eating whole grains most frequently had a 29% lower risk of developing type 2 diabetes across the approximately 30-year study period than those rarely or never eating whole grains, even after adjusting for other lifestyle factors. When looking at specific whole grain foods, common foods like whole grain breakfast cereal, oatmeal, whole grain bread, and brown rice were all linked with a lower risk of type 2 diabetes. The exception was popcorn, which was linked with a higher risk of type 2 diabetes when eaten more than once per day, perhaps due to its association with butter sauces or sugary flavorings.
BMJ. 2020 Jul 8;370:m2206. doi: 10.1136/bmj.m2206. (Hu Y et al.)

Diabetes / Insulin / Glucose
Diet 
Traditional Diets, General

Processing Corn to Remove Bran & Germ Reduces Nutrients

While some processing methods can improve the nutrition of food, some can also detract from it. To see how the nutrients in corn are impacted as corn is processed into cornflakes breakfast cereal, researchers analyzed the nutrient content at 5 points throughout the process (whole kernel, flaked grit, cooked grit, baked grit, and toasted cornflake). The scientists found that a large drop-off in phenolic acid (healthy phytochemicals that have antioxidant properties) occurred after the whole kernel was milled into flaked grits, when the bran and germ were removed. Smaller losses occurred at other points in the processing method as well, but were not as staggering.
Journal of Visualized Experiments. 2018 Jun 16;(136). (Butts-Wilmsmeyer C et al.)

Diet Quality / Nutrients
Diet 
Traditional Diets, General

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