Advantages for meat-eaters

Are the differences between vegetarian and non-vegetarian diets enough to influence one's intellectual performance? It's no secret that fruits and vegetables provide nutrients, especially antioxidants, that the brain and body need. In the favor of meat-eaters, red meat contains a type of iron that is better absorbed by the body than the iron that can be found in vegetables. Iron is beneficial for memory, learning, and concentration; iron deficiency can lead to poor learning and memory. A lack of protein is the common argument against vegetarianism. Protein helps in the production of neurotransmitters, which facilitate how the brain functions. On the other hand, nutritional supplements and fortified food products can provide missing nutrients to those who follow restrictive diets.

For those who wish to improve their intelligence through food, becoming a vegetarian does not mean that one will immediately become smarter. Simply eating a healthy and balanced diet can contribute to the brain's performance, which in turn will provide the resources and energy to do the mental activities that boost IQ levels.