1. Trans Fats
Trans fats are found naturally in animal products including meat and dairy, but even these are not as problematic as the industrially produced trans fats that get pumped into all sorts of packaged foods.
Studies have shown that high consumption of trans fats also leads to earlier cognitive decline, lower brain volume, and poorer memory.
2. Sugary Drinks
Sugary drinks like soda, sports drinks, energy drinks, and even fruit juice have little to no nutritional value. Regular consumption of sugary drinks can lead to a whole host of physical impairments, including type 2 diabetes, high blood pressure, high cholesterol, and yes – Alzheimer’s disease or dementia.
3. Refined Carbs
Refined carbohydrates are products made with processed grains. They may not necessarily taste sweet, but they break down into sugar in your body very quickly. That’s because the refining process strips all of the fiber and nutrition out of the original grain. A meal rich in refined carbs represents a high glycemic load that spikes your blood sugar.
4. Processed and Packaged Foods
However, it is important to cook with whole nutritious foods as often as you can swing it, because the Western diet is notorious for causing an accumulation of fat around the vital organs. This, in turn, is associated with damage to the brain tissue and a reduction in the brain’s volume. It may also cause disruptions to the blood-brain barrier, the membrane that is responsible for protecting the brain from harmful substances.
5. Alcohol
It’s probably no surprise that alcohol can harm the brain, considering how much stupid stuff people tend to do under the influence. Getting tipsy every once in awhile probably won’t cause permanent damage, but alcoholism and bouts of binge drinking absolutely can.