Some of the benefit from a higher fiber diet may be from the food that provides the fiber, not from fiber alone. Therefore, it is important to get fiber from foods rather than from supplements, and to get adequate minerals so you can maintain a healthy balance. Cruciferous vegetables such as broccoli, brussels sprouts, cabbage, cauliflower and kohlrabi have been shown in studies with laboratory animals to be protective against certain forms of cancer. These vegetables contain substances called indoles which may act as antioxidants. Antioxidants may prevent unwanted cell changes from occurring.
Vegetables are low in protein and the protein they do contain is of less value than animal protein.
This is of little concern when protein from animal sources is a normal part of the diet. In Your Diet Try one new vegetable a week. Even though people have become more conscious of nutrition, studies show that most do not eat even the minimum number of recommended servings. If you are among that group, you may need some ideas and a plan to help you gradually increase the vegetables in your diet. So let the cleaned vegetables be seen first.