These are the 12 fruits and vegetables with the most pesticides - but that's not the whole story

Spinach is one of the most nutritious salad leaves out there. It's got plenty of potassium and iron, and can help keep your blood pressure in check.

It's important to wash spinach well before you eat it, though, because it can be susceptible to picking up E. coli contamination.

Like many other fruits on this list, nectarines are high in fiber and vitamin C.

Plus, their orange-red hue means that like carrots, they've got a high concentration of the antioxidant beta carotene, which keeps DNA healthy and boosts our immune system.

Apples have lots of Vitamin C and a good dose of fiber. The bulk of the fiber comes from the peel, so make sure to leave the skin on.

Red grapes are one of the best fruits for staving off type 2 diabetes. Their high levels of anthocyanin flavonoids (plant pigment chemicals) help nix free radicals in the body, which can damage DNA and contribute to cancer.

Slicing into a fresh, juicy peach is almost like swallowing a multivitamin. They're high in vitamins C, A, E, and K, and also provide a decent amount of potassium, magnesium, and iron.

Cherries are great cell-protecting sweet treats. Eating just 14 cherries will give you 20% of your daily dose of antioxidants, as the BBC reports.

Pears are like nature's laxative. Because the fruits are extremely high in fiber (a medium-sized pear can pack about 24% of your daily dose), they can be fabulous natural way to loosen things up.

Australian scientists think Korean pear juice could even be a miracle cure for a hangover, but you have to drink the juice before you imbibe to get any potential benefits.

Cooked tomatoes carry sizeable doses of lycopene, a fat-soluble pigment that has been linked with lower rates of cancer and heart disease.

A crunchy stick of celery can be a great way to satisfy hunger because it has a ton of fiber. A single medium-sized stalk has about 2% of your daily fiber dose.

Potatoes are a good source of both potassium and vitamin C. Leave the skins on when you cook them to get the most satiating fiber.

Bell peppers have almost twice the amount of vitamin C that an orange offers. Hot peppers also fuel us with the compound capsaicin, which helps the body break down fat and is a natural pain reliever.