Nearly one in three American children are overweight or obese. But after decades of rising rates, we may be turning a corner on the health crisis. Experts across fields gathered at Washington Post Live’s 2013 Childhood Obesity Summit to discuss strategies resulting in healthier children.

Hunter Willis, 17, hit 275 pounds in April 2012 — and managed to shed more than 100 pounds. He was asked what advice he would give to other overweight teenagers.

With weight loss, it’s just burn more than you’re eating. It’s that simple. Don’t try to complicate it. It will make it a lot harder.

Personally, what I learned was that if you just focus on what types of food you’re eating — carbs do this; proteins, vegetables, fruits, they do this — you can figure it out for the most part. If you get a handle on what you’re doing on a daily basis and get a routine down, you won’t feel stressed and just dwell on it.

You either think of food as your best friend or you hate food, but you have a relationship with it regardless. When you forget about it as a friend or foe and you think about it as one of the three things you need for sustainability — food, shelter, water — it doesn’t become a problem. It’s manageable.

I taught myself to cook. I learned what I cook doesn’t have to be unhealthy to be delicious. I could make grilled chicken or brown rice or quinoa or whatever and it’d be delicious and be better than going out to get a burger or a slice of pizza. Also I take more pride that I’m eating what I cook.

It’s the process: cooking, getting ready, setting the table, and then enjoying it together and letting the meal be more about the people than the food. Again, lessen your relationship with it and just eat it.

Keep it simple.