Refined Carbs

Sugars and highly processed grains, such as white flour, are examples of refined carbs. These carbohydrates have a high glycemic index (GI). This implies that your body digests them fast, resulting in an increase in blood sugar and insulin levels. Furthermore, when consumed in higher quantities, these meals frequently have a high glycemic load (GL). The GL indicates how much a food elevates blood sugar levels based on the serving size. High-GI and high-GL foods have been shown to decrease brain function. A single meal with a high glycemic load has been demonstrated in studies to impair memory in both children and adults.

Another research on healthy university students discovered that individuals who consumed more fat and refined sugar had lower memory. This effect on memory might be caused by inflammation of the hippocampus, a portion of the brain that regulates memory as well as reactivity to hunger and fullness cues. Inflammation has been identified as a risk factor for neurodegenerative illnesses such as Alzheimer's and dementia. One research, for example, looked at older persons who ingested more than 58% of their daily calories as carbs. According to the study, they had nearly double the chance of moderate mental impairment and dementia.