|Source: wiki (both pics)|
Large Austrian study was published recently:
Nutrition and Health – The Association between Eating Behavior and Various Health Parameters: A Matched Sample Study
Our results revealed that a vegetarian diet is related to a lower BMI and less frequent alcohol consumption. Moreover, our results showed that a
vegetarian diet is associated with poorer health (higher incidences of cancer, allergies, and mental health disorders), a higher need for health care, and poorer quality of life.
From Table 3 (statistically significant results only):
Compared with carnivorous diet rich in meat, vegetarians have 1.8 higher risk of Allergies (30% in absolute terms!), 3 times lower risk of urinary incontinence (2%), 2.7 higher risk of cancer (4.8%), and 2.1 higher risk of anxiety disorder or depression.
Among non-statistically significant results, most notable is about twice as high risk of cardiac infarction (1.5% vegetarian vs 0.6% meat eaters), and a generally higher risk of all other chronic conditions.
See also: Study: Vegetarians Less Healthy, Lower Quality Of Life Than Meat-Eaters