Why Do People Become Vegetarians?

For much of the world, vegetarianism is largely a matter of economics: Meat costs a lot more than, say, beans or rice, so meat becomes a special-occasion dish (if it's eaten at all). 

 In countries like the United States where meat is not as expensive, though, people often choose to be vegetarians for reasons other than cost. Parental preferences, religious or other beliefs, and health issues are among the most common reasons for choosing to be a vegetarian. Many people choose a vegetarian diet out of concern over animal rights or the environment. And lots of people have more than one reason for choosing vegetarianism.

Vegetarian and Semi-Vegetarian Diets

Different people follow different forms of vegetarianism. A true vegetarian eats no meat at all, including chicken and fish. A lacto-ovo vegetarian eats dairy products and eggs, but excludes meat, fish, and poultry. It follows, then, that a lacto vegetarian eats dairy products but not eggs, whereas an ovo vegetarian eats eggs but not dairy products.

A stricter form of vegetarianism is veganism (pronounced: VEE-gun-izm). Not only are eggs and dairy products excluded from avegan diet, so are animal products like honey and gelatin.

Some macrobiotic diets fall into the vegan category. Macrobiotic diets restrict not only animal products but also refined and processed foods, foods with preservatives, and foods that contain caffeine or other stimulants.

Following a macrobiotic or vegan diet could lead to nutritional deficiencies in some people. Teens need to be sure their diets include enough nutrients to fuel growth, particularly protein and calcium. If you're interested in following a vegan or macrobiotic diet it's a good idea to talk to a registered dietitian. He or she can help you design meal plans that include adequate vitamins and minerals.

Some people who have eliminated red meat but may eat poultry or fish consider themselves semi-vegetarians.

Breakfast cereals advertise that they're packed with vitamins and minerals. Sports drinks claim they can rev up your flagging energy with a jolt of vitamins or minerals (sorry, but even powerful vitamins and minerals can't act that fast!). You know vitamins and minerals are good for you. But which ones does your body really need? And is it possible to get too much of a good thing?