This may not be what you want to hear, but by far the best (and cheapest) natural remedy for depression is exercise. Exercise, particularly hard exercise, triggers the release of endorphins in the brain. Endorphins are your body’s natural mood enhancers and pain killers. If you are sedentary, ramp up slowly.
In a study of depressed people who either exercised or took antidepressants, both were equally effective at three months and exercise worked better at 10 months. People who exercise a lot have a built-in safeguard against depression. “Runners’ high” is not an urban legend; it’s biochemistry 101.