Creatine

A substance called creatine helps athletes perform better by providing more energy to their muscles. It is also a crucial component of the brain, and some believe that it enhances cognitive function by improving energy supply and neuroprotection.

One study has shown that increased creatine intake results in improved brain function, similar to effects shown previously in muscle and heart. Creatine occurs naturally in small amounts in the brain and mostly in muscles throughout the body. Despite being a supplement, it may also be found in various foods, particularly in animal products like meat, fish, and eggs. It's noteworthy to note that those who don't eat meat might benefit from creatine supplements in terms of memory and clarity of mind.