Virtually every diet involves eating plenty of fruits of vegetables, and a high-fiber diet is no exception. But just eating my normal dose of daily fruits and vegetables wasn’t going to get me to the 25-gram fiber mark. A medium apple, for example, has only four grams of fiber. Same for a banana, a cup of strawberries, and a cup of Brussels sprouts. Four grams of fiber is still significant, but at that rate, I’d have to eat two of those fruits or vegetables at every meal to hit 25 grams. That’s a worthy goal, but I wasn’t sure I’d be able to reach it.