If someone is really interested in being a vegetarian special concern needs to be taken that enough iron is being consumed and the mix of foods consumed. Iron anemia is one of the world's greatest nutritional problems, especially in those areas where a vegetarian diet is common and/or in areas where poverty allows mostly only veggie sources of food; especially grain foods. India has a big problem in this area, here is an article discussing it: Correction of Anemia and Iron Deficiency in Vegetarians http://makeashorterlink.com/?X26712E67 Here is an article that discusses the range of problems a vegetarian only diet can present and the variables to be juggled to avoid being anemic: http://www.llu.edu/llu/vegetarian/iron.htm There are two kinds of iron, both occur in meat and only one in veggies. The iron in meat is easily absorbed while that in veggies is less so. Some vegetarian foods even make this absorbtion less effective. For example, soy products can cause less iron absorption. The above article address quite well how to avoid being iron deficiency anemic on a vegetarian only diet and the problems, especially for women and children, if care is not taken.