Bottom Line: Go ahead, punch up your diet with these detox-promoting foods. But if broccoli juice doesn't stoke your appetite, that's OK—your body has a built-in cleanup crew.

Brierley Wright, M.S., R.D.

Yummy Ways to Cook Broccoli

Based on the abundance of cleanses on the market, you'd think a regular detox regimen is a must-do. Not so. Our bodies are pretty adept at eliminating most harmful substances we encounter, thanks to our kidneys, liver, lungs and GI system. And, buyer beware: the cleanses and detox diets out there vary widely and often aren't based in science. There are, however, a few foods that research shows can amp up your body's natural detox process.

Pictured Recipe: Roasted Broccoli with Lemon

There are plenty of health reasons to eat more fiber and helping your body detox might be one of them. Soluble fiber-like what's in apples, oatmeal, eggplant-can bind to lead and mercury in your body, helping to eliminate them, says a Journal of Hazardous Materials study.

Another key food? Broccoli. In a study in Cancer Prevention Research, people from an area of China with heavy air pollution who drank a broccoli beverage daily for three months cleared the most airborne toxins from their systems. "Broccoli aids detoxification because it has the highest amount of the phyto­nutrient glucoraphanin," explains Ashley Koff, R.D.

Cilantro and foods rich in selenium-like garlic and mushrooms-may also be detox aids. Preliminary research (in mice) found eating cilantro helped to ward off lead accumulation. Another study found that, within a mercury-exposed population in China, people who took a daily selenium supplement cleared twice as much mercury from their bodies.

Try it: 10 Tips for Clean Eating

Bottom Line: Go ahead, punch up your diet with these detox-promoting foods. But if broccoli juice doesn't stoke your appetite, that's OK-your body has a built-in cleanup crew.

Have a question for the nutritionist? Email us: askus@eatingwell.com

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