Your digestive system provides your brain with all the nutrients to perform its functions. It is also responsible for synthesizing neurotransmitters that is very important in boosting the quality of your memory, focus, and overall cognitive function.

Provide it the essential nutrients, and your brain can protect itself against symptoms of chronic inflammation such as brain fog and mental fatigue as well as disease and degeneration. So what are the brain foods you should be eating to keep your most essential organ performing at its best?

Fish is popular as top-notch brain food. It's the best source of protein which is needed to form mood-boosting neurotransmitters like serotonin and dopamine. It's also a great source of Vitamin B12, an essential vitamin for a healthy brain and nervous system.

All fruits are full of vitamins, fiber, and phytonutrients, but berries are in a class of their own. All kinds of berries - blueberries, strawberries, raspberries, and blackberries - usually make it to the top of any brain foods list. They are bursting with flavonoids, a group of potent antioxidants that protect brain cells from oxidative damage.

The essential nutrients found in eggplant will keep your brain sharp by improving communication between brain cells and messenger molecules. That said, if you want to take advantage of these benefits, it's important to use the skin of the vegetable. That's where the nutrients you need in order to reap the maximum benefits are located.

Besides looking surprisingly similar to the human brain, walnuts can do great things to help keep you productive. They contain roughly 15-20% protein, as well as omega-6 and omega-3s fatty acids, vitamin E and vitamin B6-all of which are important for overall health. They may also help correct serotonin levels, controlling both your mood and appetite.