Eating junk food often could increase risk of cognitive disease

Health & Fitness
12 Sep 2025 • 7:47 AM MYT
The Independent
The Independent

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  • Eating a junk food-heavy diet for just a few days may impair memory, according to researchers at UNC School of Medicine.
  • Foods rich in cholesterol-raising saturated fats disrupt the hippocampus by causing brain cells to become overactive and impairing glucose reception.
  • A protein called PKM2, which controls how brain cells use energy, was also identified as contributing to the problem.
  • The study, conducted on mice, showed that brain cells became overactive within four days of consuming a high-saturated fat diet.
  • Intermittent fasting and other dietary changes were found to normalize brain cell activity and fix memory problems in the mice, offering potential avenues for future human treatment.

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