35 grams of Fiber a day

Is it really necessary to eath 35 grams of fiber a day? I'm just starting to dive into some of Brenda Watson's material in the Fiber 35 Di et Book. 

Her basic premise is that the more fiber we eat, the more full we will be and the more we ight we will lose. It makes sense to eat more fiber to feel more full. Although she uses some supplements to achieve the 35 grams of fiber a day sometimes, her plan is not focused on bran flakes and beans. 

Here are some surprisingly high fiber foods that I think we should all eat more of: raspeberries (8), Pear with skin (5.5), apple with skin (4.4), split peas (16.8), orange (3.1), raisins (1), wheat noodles (6.2), peas (8.8), avocado (11.8), and more. She goes on to say that it's silly to eat a piece of white bread that has less than a gram of fiber when we could eat a piece of whole grain bread that has 2-3 grams of fiber. Why eat a cup of yogurt that has virtually no fiber, when you could eat an apple, orange, oatmeal, berries, or a whole host of other foods that have lots more fiber in them?

I think eating 35 grams of fiber a day is certainly a good idea. It helps you feel full and is VERY good for your body. Let me know if you decide to try it.