 Stress is everywhere. Stress influences our food choices, which in turn affect our mental well-being. Here are 6 foods to choose from to improve your mental well. 1. Blueberries. Blueberries can improve concentration and memory for several hours. 2. Green tea. Green tea increases attention and boosts speed and accuracy. 3. Leafy green vegetables. Leafy green vegetables enhance mental clarity and protects your brain. 4. Tuna and salmon. Tuna and salmon raises mood and productivity. 5. Water. Water helps you think faster, focus more, and be more creative. Finally, dark chocolate. Dark chocolate improves cognitive performance. Include these foods in your diet and see the difference in your mental well-being in no time.