Large Review Shows What Sugary Diets May Be Doing to Your Memory

A review of 27 rodent studies found that switching from unhealthy diets to healthier ones can improve memory, but not always restore it fully.

Recovery was more consistent after high-fat diets than after high-sugar or high-fat/high-sugar diets.

The results suggest some diet-related brain changes are reversible, while added sugar may leave more persistent memory effects.