The good news is that not all fats are bad for you. However, a particular type of fat called trans fat has a detrimental effect on the brain. Trans fats are found naturally in animal products, including meat and dairy products, but even these are not as problematic as industrially produced trans fats that are pumped into all types of packaged foods.
Also known as hydrogenated oil, people who consume a large amount of trans fats in the form of margarine, store-bought baked goods, chips and cookies, frozen and canned foods and creamy beverages are at an increased risk of developing Alzheimer’s and dementia. Studies have shown that high consumption of trans fat also leads to early cognitive decline, lower brain volume and poorer memory.