For many people, eating right is understandably complicated. New studies emerge every day about whether certain foods should be part of your diet, making it tough to recognize what’s good and what’s bad for your health. But it doesn't have to be that way.

“Eating well doesn't have to be complicated, expensive or difficult, and it has a profound effect on your wellbeing and the wellbeing of the planet,” says Mark Hyman, MD, Director of the Cleveland Clinic Center for Functional Medicine.

It's this philosophy that drives Dr. Hyman's new book, FOOD: What the Heck Should I Eat? In it, he explores how food impacts your health, the environment and our economy. He shares his opinions on major food topics, like whether cow's milk is good for you, and if red meat causes cancer.

Here are some of the biggest takeaways from FOOD, plus ways to incorporate some of Hyman's principles into your own diet.