Kiwi fruits help protect the cell DNA from oxidant-related damage and mutation. They also help with cardiovascular health, eye problems and cancer. They are rich in vitamins C, E and A, minerals and fiber. You Might Also Like Good sources of natural fiber July 28, 2014 Walnuts November 6, 2013 Onions contain sulfur compounds that help your liver detoxify December 30, 2015