Hi, I'm Dr Oz, with a quick tip that can help keep your lungs healthy. Imagine slashing your risk of lung cancer by 50 percent, whether you've ever smoked or not. You can, and here's the food that can help you do it: chickpeas.Chickpeas are a great source of vitamin B6, they're full of fiber, and they have just 140 calories per serving. And they appear to be a superfood that protects against lung cancer. In one large study, nonsmokers who had the highest B6 levels enjoyed a 60 percent drop in lung cancer risk, while former smokers with high B6 cut their risk in half. Even current smokers appeared to benefit from B6. Half a cup of chickpeas supplies about half a milligram of this cancer-fighting B vitamin, which doesn't sound like much. But you only need about 3.5 milligrams daily for optimal benefits. Not a fan of chickpeas? Other good B6 sources include bananas, potatoes with the skin, broccoli, tuna, chicken breast, and fortified cereals.For more ways to nourish your health, watch all our smart health tips right here!