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How Do Whole Grains Help Fight Cancer?
All 3 Parts of a Whole Grain Have Health Benefits

By , About.com Guide

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Whole Grain Kernel

Whole Grain Kernel

Illustration © Pam Stephan
Whole grain foods are good for you. They come with all their original parts, which work together to boost your health. They may not look as attractive as refined grains, but they are tough fighters of disease. Let's take a quick look inside a whole grain to see what the different parts are and how they function.

The Power of Whole Grain Seeds

Every whole grain is a seed packed with all the potential to grow a new plant of its own kind. Whole grains will sprout, given enough water and time. Refined grains, which are primarily starch and protein, won't sprout because they no longer have the germ and the outer shell of bran needed to complete each kernel.

Three-Part Harmony

A whole grain kernel has three parts:
  • Bran: The outer protective layer of the grain kernels. Bran has dietary fiber, antioxidants, minerals, and B vitamins.

  • Germ: The smallest part of each kernel, but not the least important. Germ is the embryo of the kernel, and it's loaded with B and E vitamins, folate, healthy fats, antioxidants, minerals, and a bit of protein and fiber.

  • Endosperm: The largest part of the kernel, providing potential energy for the kernel to sprout and develop into a new plant. Endosperm is composed of carbohydrates and protein. Refined grains are whole grains that have been milled and separated, leaving only the starchy endosperm.

Anticancer Benefits from Whole Grains

The bran and germ of whole grains have the most cancer-fighting properties because they contain fiber, antioxidants, natural antiseptics and antibiotics. You can purchase bran and germ separately, and use them in your own cooking to enhance the texture and health value of baked goods, stews and even dishes like meatloaf. Or you can look for whole-grain products, which deliver the full benefit of anticancer substances as well as the starch and protein included in every kernel.

Like many good things, whole grains' goodness is fleeting and must be appreciated in a fresh form, or carefully stored to retain its nutritional qualities. Because of the oil within the germ, whole grain products can go rancid more quickly than refined grains, which have a longer shelf life. Whole grains may be darker and grittier than refined grains, but when it comes to health benefits, they will beat out refined grains any day.

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