To appeal to more health-conscious Americans, Hostess launched a line of whole-grain breads called Nature's Pride that the company says has been selling well, but it is a small product line compared with rival offerings.

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The church recommends a diet with "generous use of whole-grain breads, cereals and pastas, a liberal use of fresh vegetables and fruits, a moderate use of legumes, nuts and seeds, " according to a statement on its website.

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However the group recommended that Subway increase the whole-grain content of its breads and continue to lower sodium.

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When it comes to pasta, sandwich breads, bagels, dinner rolls, or hamburger buns, opt for whole grain.

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