Brain-Boosting Foods You Should Add To Your Diet

13. Selenium: The Mood Stabilizer

Selenium is a trace mineral with powerful antioxidant properties, helping protect the brain from oxidative stress and inflammation. Low selenium levels have been linked to poor mood, cognitive fog, and even a greater risk of depression. This essential nutrient supports the production of selenoproteins, which play a role in detoxification and maintaining brain cell integrity. Brazil nuts are one of the richest natural sources—just one nut provides over 100% of your daily selenium needs. Other good sources include sunflower seeds, fish, and whole grains. While too much selenium can be harmful, maintaining optimal levels supports emotional resilience, mental clarity, and long-term brain health.

14. CoQ10: The Brain's Energy Catalyst

Coenzyme Q10 (CoQ10) is a compound found in every cell that helps generate energy and reduce oxidative damage. In the brain—an energy-hungry organ—CoQ10 is crucial for mitochondrial function and protecting neurons from aging. As we age, natural CoQ10 production declines, making dietary sources and supplementation more important. Foods like organ meats, fatty fish, and peanuts contain small amounts. Supplementation has shown promise in supporting cognition, especially in neurodegenerative conditions like Parkinson’s. For sharper thinking and sustained energy, CoQ10 is a brain ally worth considering.