To naturally reduce your levels of stress, eat foods that contain folic acid. Folic acid works as a mood stabilizer, and can leave you feeling calmer and more relaxed. Examples of foods rich in folic acid include avocado, lentils, and dark leafy greens. Consuming folic acid also reduces your risk for depression.
If you suffer from sleeping disorders, adjusting your nutrition values may be beneficial to you. There are foods that facilitate relaxation and others able to provide a boost of energy. Also, you should reduce the amount of food that you consume before turning in and going to sleep.
Watch your sodium consumption carefully. Too much salt can be a cause of high blood pressure. Too little salt can be dangerous if you're a hard and heavy athlete. Visit your physician or discuss your sodium intake with a Dietitian to make sure that you're at your ideal levels.