Understanding the Vegetarian Diet

Vegetarian
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One new paragraph on each topic. In the United States, 32% of adults eat a vegetarian diet (Vegetarianism in America, n.d.). What does the term "vegetarian" mean?
Vegetarians eat plant-based diet mostly the consumption of fruits, vegetables, cereals, seeds and plants and they do not consume foods of animal origin, such as meat or fish. Some vegetarians may consume milk or eggs.
Do you think vegetarian diets are practical? That is, can someone easily be a vegetarian while living the typical American life of being rushed and busy?
Vegetarians do not eat meat, and despite the health benefits, they are not practical because of the limited supply and people being busy to access them. However, for vegetarians getting plant-based foods is more of a challenge since fewer stores stock these products. 
One of the reason a person becomes a vegetarian is animal welfare. For vegetarians, the quality of life of animals raised for the food industry is very poor. Another important factor is health to help fight obesity and diseases such diabetes when diets are well planned. As such, the vegetarian diets are practical in the US when there are no great deficiencies after well planned. Nonetheless, vegetarian foods are not necessarily available in local markets. Vegetarian diets are associated with lower risk of high blood pressure and reduce cholesterol levels and there is a lower risk of being overweight.
Clearly, a vegetarian diet can be a healthy one, but can a vegetarian diet lack nutrients? If so, which nutrients may be lacking? How could these nutrients be measured in the body to determine if someone is deficient in them? Are there vegetarian foods that provide these nutrients or would supplementation be necessary? Are there any interactions to be aware of with the supplements that a vegetarian may take?
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