The Power of Whole Grains

You know, I am always telling everyone to eat whole grains, There is so much compelling research pointing towards how whole grains will improve our health, from diabetes to cancer to weight control. I wanted to share this article from Tufts University. For me, whenever I have the choice I always choose whole grains. That being said, sometimes you just have no other choice than eating the refined “Crap”. Just try to keep it to a minimum. I bet after you read this article you will be putting down the "Sugar Puffs" and reaching for the oatmeal!

Five New Reasons to Get Whole Grains
AUGUST 2007, Tufts University

AMERICANS average less than one serving a day of whole grains, and few of us get the recommended three servings or more per day. In fact, more than 40% of US adults typically eat no whole grains at all.

A rich harvest of five new studies on whole grains suggests what we’re missing: preventive benefits against atherosclerosis, other forms of heart disease, stroke, type 2 diabetes, colorectal cancer, and inflammatory diseases.

“Many consumers and health professionals are unaware of the health benefits of whole grains,” said Philip B. Mellen, MD, of Wake Forest University, lead author of a new review of seven major studies that found wholegrain consumption consistently associated with a reduced risk of heart disease and stroke.

In an American Journal of Clinical Nutrition editorial accompanying a second new study, also led by Dr. Mellen, linking whole grains with reduced risk of atherosclerosis, Harvard nutrition scientists Vasanti S. Malik and Frank B. Hu, MD, PhD, noted that before the Industrial Revolution, all grains were “whole.” That is, they included the germ, bran and endosperm of the unprocessed grain. “With the advent of industrialized roller milling at the end of the 19th century,” they wrote, “mass refining of grains occurred, which significantly changed the nutritional quality of milled grain.” The nutrient-rich germ and bran of grain are removed during processing—making grains faster and easier to cook, but much less nutritious.
Dr. Mellen pointed out, “Years ago, scientists hypothesized that the higher rates of chronic diseases we have in the West, including heart disease, are due in part to a diet full of processed foods.”

It’s not just that whole grains are an excellent source of fiber. Malik and Hu observed, “Emerging evidence suggests that the consumption of fiber per se may not be as beneficial as the consumption of fiber when it is consumed as a whole grain.” Rather, the benefits of whole grains may come from what they call whole grains’ “unique constellation of constituents”: fiber plus vitamins, minerals, lignans, phenolic compounds and phytochemicals—all refined away along with the germ and bran.

Dr. Mellen and colleagues’ review of major studies totaling more than 285,000 participants was published in Nutrition, Metabolism & Cardiovascular Diseases. It concluded that adults who ate 2.5 daily servings of whole grains had a 21% lower risk of cardiovascular events than those averaging 0.2 servings. Similar associations were noted for heart disease, stroke and fatal cardiovascular disease. No such benefit was found for refined-grain intake.
In the second, American Journal of Clinical Nutrition study, Dr. Mellen and fellow researchers evaluated 1,178 multiethnic participants in the Insulin Resistance Atherosclerosis Study (IRAS), average age 55, over five years. Those who consumed the most whole grains proved less likely to suffer from carotid artery atherosclerosis.

Other research news that should make you reach for the oatmeal, brown rice and whole wheat bread:

• German researchers, writing in Archives of Internal Medicine, report that getting more fiber from whole grains—but not from fruits or vegetables —may protect against type 2 diabetes. In a seven-year cohort study of 25,067 adults, the scientists concluded that subjects who ate the most cereal fiber (an average of 17 grams a day) had a 27% lower relative risk for type 2 diabetes than those who ate the least (7 grams daily). Similarly, in a metaanalysis also including eight prior studies, they found a reduced risk of diabetes associated with higher cereal-fiber intake.

“It is likely that cereal fiber is a marker for whole-grain foods,” according to study author Matthias B. Schulze, DrPH, of the German Institute of Human Nutrition. “Whole-grain foods are therefore important in diabetes prevention.” Previous studies have found whole-grain consumption beneficial people who already have diabetes.

• In a five-year prospective cohort study of 489,611 adults ages 50 to 71, National Cancer Institute researchers found that whole-grain consumption was associated with a modest reduced risk of colorectal cancer. Total dietary fiber, however, was not found to have a similar benefit—only fiber from grains.

Researchers investigated the association of whole-grain intake with death from noncardiovascular, noncancer inflammatory diseases among 41,836 postmenopausal women followed for 17 years in the Iowa Women’s Health Study. Women who ate whole grains were at lower risk of inflammation-related death.

“The reduction in inflammatory mortality associated with habitual whole-grain intake was larger than that previously reported for coronary heart disease and diabetes,” concluded lead author David R. Jacobs, Jr., PhD, of the University of Minnesota. He suggested that phytochemicals in grains inhibit the oxidative stress from inflammation, giving a protective effect.