I refuse to serve my kids skinless apples. There's just too much work involved. And there's too much my boys stand to lose if I peel apple after apple. Science backs me up on this one: Some of the most health-protecting antioxidants in fruit are found in the peel, says Susan Percival, Ph.D. and professor of nutrition at the University of Florida.

Before you get your peeler out, take a look at these five fruits with skin that should stay put.

• Apple -- Apple peels have 87 percent more cancer-fighting phytochemicals than the white flesh found inside.

• Cucumber -- Cucumber peels are made of silica, a collagen building block. Eat the skin of one cucumber and you'll get about five milligrams of this good stuff, the exact amount experts suggest eating. Buy organic and you'll avoid the waxy film found on some cucumber skin.
  

• Eggplant -- Eggplant skin contains nasunin, an antioxidant that may prevent brain damage. Potassium and fiber provided too.

• Kiwi -- Chemical compounds found in kiwi skin fight off bugs like staph and E. coli.

• Orange --Don't chomp right into this peel. Just add a little orange zest on salmon and salads and you'll be one step closer to preventing skin cancer.