If there's one thing that even the most hardcore dieter does not like about the prospect of losing weight, it would be the possibility of doing damage to their short-term memory. Indeed, it is a known fact that adhering to strict guidelines in a diet, along with counting carbohydrates and other things that people usually count when attempting to cut down on food intake, can seriously affect someone's ability to remember things in the short-term. However, some studies have suggested that the food people eat may have an even more profound effect on a person's cognitive abilities.

Like any other organ in the body, the brain is ultimately fueled by what a person eats. The brain is a massive organ, accounting for an estimated 2% of the body's weight and requires a constant supply of glucose. Glucose is primarily obtained from recently eaten carbohydrates, and it will only use other substances for fuel in cases of severe deprivation. It should be noted that the more recently evolved areas of the brain, the ones that generally make humans have the mental faculties that sets them apart from most other species, are very sensitive to dropping glucose levels. Those areas could easily fluctuate in their capacity to handle things, and will often manifest as changes in a person's thinking patterns and mental abilities.

According to experts, the best way to optimize the food intake such that the brain always has an adequate level of glucose is to "graze." The tactic involves taking more frequent meals, but at smaller amounts. The brain has been found to function at its best with around 25 grams of glucose circulating in the blood stream of the average person, which is roughly the amount of good that can be found in a typical banana. By having more meals with smaller amounts of food, the body gets a more constant amount of glucose flowing to the brain.