Many people report feeling foggy-headed after consuming dairy products. But is there any scientific evidence to support this claim?
A study published in the journal Nutritional Neuroscience suggests that dairy may indeed play a role in causing brain fog. The study found that consuming milk, cheese and yogurt was associated with poorer cognitive function, including reduced working memory and verbal fluency.
The authors note that the link between dairy and brain fog needs further research, but suggest that people who experience symptoms of brain fog after eating dairy products may want to try eliminating them from their diet.