fiber substitute
A: The main drawback to supplements is that they lack the vitamins, minerals, and antioxidants you get when you eat high-fiber foods such as vegetables, fruits, whole grains, beans, and lentils. You should aim for at least 25 grams of fiber a day if you're 50 or younger, and 21 grams if you're over 51. You can get close to that with a bowl of bran cereal for breakfast and bean soup for lunch. And frankly, those foods are far more enjoyable to consume than a powder or a pill.