Speaking sources

Palaniswamy, Usha R. "Vegetarianism and Human Health." Hort Technology 13.2 (2003): 243-51. Web. 27 Mar. 2015.

original: The term vegetarianism generally refers to a diet that is free from meats on the basis of religious, spiritual, ethical, economic, hygiene, and environmental considerations or the simple desire for better health , free from chronic diseases

1) Vegetarianism refers to a diet which includes no meat due to religious, spiritual, ethical, economical, hygiene, and/or environmental reasons or simply to live a healthy, disease free life. 

2) Vegetarians eat no meat because of religion, spiritual ethical, economical, hygiene reasons, or simply to live a healthier lifestyle.

3) Vegetarianism is when one eats no meats because for a specific reason, or to simply better their health and reduce the risk of diseases.

"Becoming a Vegetarian." Harvard Health. N.p., 1 Oct. 2009. Web. 27 Mar. 2015. <http://www.health.harvard.edu/staying-healthy/becoming-a-vegetarian>.

Original: appropriately planned vegetarian diets, including total vegetarian or vegan diets, are healthful, nutritionally adequate, and may provide health benefits in the prevention and treatment of certain diseases

1) Properly planned vegetarian diets are nutritionally healthy and can benefit reduce the risk of disease.

2) "Correct" vegetarian diets are healthy and can reduce and prevent the chance of diseases.

3)  Vegan and vegetarian diets are both nutritionally healthy, and if done correctly can help prevent and treat certain health diseases.