Although vegetarians say their diet is better and healthier, scientists from the University of Graz in Austria actually claim that the vegetarian diet harmful health .
Vegetarians have lower immunity because they are often sick, unlike humans who consume meat and drink less alcohol, smoke more and exercise.
In addition, vegetarians often suffer from cancer, allergies and heart disease and are facing psychological problems more than other people.
Research has shown that vegetarians have a 166% greater risk of developing cancer as opposed to people who eat meat and 150% to get heart disease.
Also twice likely to face depression or anxiety.