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On fresh vs frozen vegetables fiber, frozen holds its own: USDA data show cooked frozen Brussels sprouts at 4.1 grams of fiber per 100 grams versus 2.6 for fresh, and most other vegetables land within half a gram. Here’s the side by side data, what happens to vitamins, and how to use frozen vegetables for easy meal prep.
On raw vs cooked vegetables fiber, cooking barely moves the grams: USDA data show carrots at 2.8 grams per 100 grams raw and 3.0 boiled, with most vegetables shifting by less than a gram. What cooking does change is water, volume and vitamins, so the method you choose matters more than whether you cook at all.
On leafy greens vs root vegetables fiber, the answer flips depending on how you measure: cup for cup, roots like parsnips and sweet potatoes win with over 6 grams, but per calorie, cooked greens like turnip greens deliver more than five times the fiber. Here’s how they compare and when each makes sense.
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