Changes in the Western diet over the past 150 years are causing many Americans to develop nutrient deficiencies. This is especially true of essential nutrients and fats found in fish and wild plants. More folks are eating high amounts of animal products and pesticide-laden fruits and veggies. And it’s no secret that there are far too many processed foods lining grocery store shelves.

A nutrient-lacking diet can cause or worsen major depression and may contribute to:

• Mood swings
• Insomnia
• Fatigue
• Weight loss
• Headaches or other chronic pains

One way to lift your mood and possibly help prevent depression is with omega-3 fatty acids. These fats are essential for your diet—and should be supplemented since your body doesn’t produce them on its own. Omega-3s are the best source to help prevent blood clotting, lower blood pressure and relieve inflammation. These healthy fats are found in fish, flaxseed, winter squash, olive oil, navy beans and various nuts such as walnuts, Brazil nuts, hickory nuts and macadamia nuts.

Krill oil contains a healthy balance of omega-3 fatty acids and omega-6 fatty acids—which helps fight infection. These two fatty acids need each other and work together to prevent other inflammation-related ailments like heart disease, arthritis and diabetes. Krill has also been shown to improve your blood pressure levels, relieve your premenstrual syndrome (PMS) symptoms, reduce your cholesterol levels and decrease your risk for heart disease.

Be sure to balance your meats and veggies with healthy amounts of omega-3 fats. You can say “goodbye” to the blues—and improve your overall health, too.