You Don't Know Beans.Or Do You? Ultimate Bean Quiz

Beans, peas and lentils are members of the legume family.

Beans contain large amounts of a complex sugar called raffinose that causes digestive gas. Canned beans don't cause as much gas as dry beans because the canning process removes some of the sugars.

Soaking dry beans overnight in a pot of water helps dissolve the sugars that cause flatulence. Adding salt to the water can actually make some beans tough.

Canned beans have a lot of added salt, so rinsing them gets rid of the excess. However, many beans come in a flavored sause, so you wouldn't want to send all that flavor down the drain.

According to the U.S. Department of Agriculture, both beans and peas can be considered a vegetable and a protein because of their high nutrient content.

Peanuts are members of the legume family, along with beans, peas and lentils.

The U.S. Department of Agriculture says half a cup of beans is one serving.

Yep, beans add nitrogen to the soil, so they're not only good for you, they're literaly good for the earth -- literally!

Dry beans are grown for their seeds to be eaten, as opposed to green or string beans, which are eaten for their pods.

All dry beans are generally similar in nutritional content, with the exception of iron. White beans contain nearly twice as much iron as black beans, and kidney beans are between the two.

Canned beans require no cooking, can be used immediately and aren't as likely to cause gas as dried beans that you cook yourself.

Beans are high in disease-fighting antioxidants. They have zero cholesterol and are low in fat, too.

Dry beans contain complex carbohydrates and a lot of fiber, which help keep diabetes and weight fluctuations in check.

Also known as turtle beans, black beans are native to Central America and have been cultivated for more than 7,000 years.

Lima beans are an important component of succotash. Native Americans often planted lima beans along side corn, both of which they used in the dish.

Fava beans can be fatal to some people who have a hereditary blood enzyme deficiency. The condition is called G6PD, or Favism.

Cacao beans, from which the Aztecs made a bitter chocolate drink, were used as currency to purchase other goods.

Licorice flavor comes from a root. Chocolate comes from the cacao bean, vanilla from the vanilla bean.

When something is considered trivial or insignificant, it's sometimes described as not amounting to a hill of beans. While it's been an American adage since the mid-1800s, Humphry Bogart made the saying world-famous when he uttered it in a scene in the 1942 film "Casablanca."

A portrait of Ronald Reagan, made of 10,000 jelly beans, hangs in his presidential library in California.