Most people rely on a multivitamin for their nutrition. That's an OK first step, but the best nutrition comes from nutritious foods. Artificial vitamins made in factories are not always the exact same as vitamins found in nature. When you get your vitamins from natural food sources you are getting higher quality vitamins as well as additional trace nutrients and anti-oxidants. You don't always get those with a pill.
Aside from fresh fruit and vegetables, wheat is an excellent source of nutrition. Not wheat flour, but actual ground wheat. Look for breads that list "whole ground wheat" as their first ingredient. You will be eating all of the wheat berry, getting maximum nutrition. Wheat flour is often stripped of its vitamins and then the are added back. The nutritional info can look impressive, but its mostly artificial.
