Everyone wants to be healthy, even if you are not doing such a good job at being healthy it is the goal for every human to ensure both quality and quantity of life. It matters what you put into your body to stay healthy. Some of the healthiest foods are lentils, almonds, oatmeal, broccoli, apples, kale, blueberries, avocados, leafy green vegetables, sweet potatoes, chicken, eggs, and oily fish.
I healthy balanced diet consisting of a moderate amount of all these foods combined should be an extremely healthy diet for nearly anyone. Super foods like spinach and pomegranates are very good to introduce into your diet as well.