Vegetarianism, as a way of life, is definitely on the rise, with more books and articles published on the subject with each passing year. Many of the articles refer to the superior health of the vegetarian Seventh-day Adventists, as well as to the humanitarian or spiritual advantages of vegetarianism. However, my research forces me to conclude that caution is warranted regarding vegetarian diets. This article discusses why people are attracted to vegetarianism, biochemical changes that occur on vegetarian diets, and when vegetarian diets are appropriate.