A new study has suggested that IQ in toddlers gets a lot affected by diets that are rich in sugars, fats, and processed.

It was seen that brain performance among three-year-olds is formed by eating habits.

According to a Bristol-based study of thousands of British children, a lower IQ level is seen at the age of eight if a child indulges in junk food at the age of three years.

Researchers stated that the opposite was done with food that was high in nutrients and vitamins and aided in better mental performance as toddlers got older.

It was also stated by researchers that better eating habits even in later age can change IQ levels later in childhood.

The authors said, "This suggests that any cognitive or behavioral effects relating to eating habits in early childhood may well persist into later childhood, despite any subsequent changes to dietary intake."

Of about 14, 000 children, well-being and long-term health is being tracked down by the Avon Longitudinal Study of Parents and Children or ALSPAC.

Questionnaires on what kind of food and drink pattern was followed by children at the age of three to four years were completed by parents.

The report said, “The brain grows at its fastest rate during the first three years of life. It is possible that good nutrition during this period may encourage optimal brain growth.”