Fast food alters brain structure in teenagers

Unhealthy eating habits alter brain structure in teenagers

A fast-food habit in adolescence can permanently damage memory and learning ability.

The modern food environment offers easy access to hyper-palatable food — high in fat, sugar, and salt — which bypasses natural satiety mechanisms and increases cravings.

A study published in the journal *Neuropharmacology* confirms that teenagers are far more likely than children to consume ultra-processed foods and products high in fat and sugar.

Excessive consumption of calorie-dense but nutrient-poor food during adolescence disrupts the development of neurocognitive functions, particularly in the prefrontal cortex.

Early consumption of fatty-sweet foods impairs the structure and function of the hippocampus, reducing the ability to learn and retain information.

Even if one switches to a healthy diet in adulthood, not all negative effects of poor adolescent nutrition can be reversed — especially if it occurred during critical periods of brain development.