Puffed wheat vs. Whole grain cereal?

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I compared the nutrition labels on a bag of puffed wheat to a box of a rolled grain cereal. The puffed wheat only had 2g of fiber, whereas the rolled grain cereal (Uncle Sam's grain/flaxseed) had 10g of fiber.When you puff wheat, are you removing good things about the wheat? I'm really trying to find a good cereal for me, that has the whole grain, and I'm concerned that puffed wheat isn't it!