The article includes seven food experts from neurologists and neuroscientists who specialize in brain health who advise against certain foods that aren't good for the health of their brains. These experts share their top foods that they avoid, such as protein powder, which is often marketed as a healthy, lower-calorie option for people trying to lose or maintain weight, and artificial sweeteners that cause brain inflammation, irritability, poor mood, and sleep disturbances. Dr. Shaheen Lakhan, a neurologist, said that soda is one of the worst foods for brain health due to its high concentration of simple sugars, which damage the blood vessels supplying the brain over time and can lead to premature dementia and strokes. Other experts include Dr. Shae Datta and Dr. Pedram Navab from the NYU Langone Concussion Center for avoiding margarine as much as possible due to trans fats and French fries due to their high levels of elaidic acid in their blood. Despite the legal legalization of marijuana and its effects on the brain, cannabis can cause short-term cognitive impairing effects and addiction, which can cause severe brain inflammation and constrict arteries.