Is meat like steak and chicken, beef good for health?

Controversial: A large body of research shows not eating meat (being vegetarian)is "associated with lower blood cholesterol levels, lower blood pressure, less obesity ;...Less heart disease, stroke, diabetes, cancer ; mortality."-quoting from http://bit.Ly/1cysymm but it's not clear if this is due to not eating meat, eating more veggies or the fact that vegetarians have other healthy habits. See comment for more:.