Brain fog, described as mental haziness and fatigue, can be caused by poor nutrition, alongside factors like lack of sleep, stress and mental health conditions.
Health experts recommend limiting highly processed foods, particularly those high in added sugars, refined grains, trans fats and omega-6 oils, as they promote inflammation and insulin resistance in the brain.
Foods high in sodium, nitrates or artificial additives should also be avoided due to their potential to contribute to vascular damage, a major driver of cognitive impairment.
The connection between unhealthy processed foods and poor cognitive health has led some researchers to refer to Alzheimer's disease as “type 3 diabetes.”
To improve cognitive function and combat brain fog, nutritionists suggest incorporating foods rich in lutein, such as spinach, dark leafy greens, carrots and sweet potatoes, alongside regular physical exercise.