Fruits and vegetables are rich in nutrients. They contain vitamins, minerals, and plant chemicals that our bodies need to stay healthy. And a lot of these nutrients are not found in animal food. A good example of an essential nutrient is vitamin C. This vitamin is not sourced from animal food in significant amounts. And our bodies cannot synthesize vitamin C either. So a meat-based diet will not be sufficient. In order to consume an adequate amount of vitamin C, one must get it from fruits or vegetables, or otherwise from supplements.