One of the first things I learned on my path to healthy eating was the importance of eating a variety of fresh fruits and vegetables in all different colors. The colors are related to the nutrients found within fruits and veggies so in order to get a variety of nutrients, you need foods with a variety of colors. Below is the first “healthy food thing” I ever posted on my refrigerator. I got it from the Eat Well, Live Well challenge at my job. It was very useful as a reference when I couldn’t think of something… blue to eat, for example.
It also introduced me to another topic that I think is a very important one, phytochemicals (or phytonutrients). There’s a quick definition of phytochemicals on the bottom, but if you want to read more about it, I would recommend browsing this site. There is also some discussion on phytochemicals/phytonutrients here, here and here.