Chamomile - Typical oral doses are 9 to 15 g/day
Celery - 1 to 4 grams doses
Catnip - ( The appropriate dose of catnip depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for catnip. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.
Omega-3 fatty acids - being studied as a possible treatment for depression and for depressive symptoms in people with bipolar disorder. While considered generally safe, the supplement can have a fishy taste, and in high doses, it may interact with other medications. Although eating foods with omega-3 fatty acids appears to have heart-healthy benefits, more research is needed to determine if it has an effect on preventing or improving depression.
St. John's wort - use it with caution. St. John's wort can interfere with many medications, including blood-thinning drugs, birth control pills, chemotherapy, HIV/AIDS medications, and drugs to prevent organ rejection after a transplant. Also, avoid taking St. John's wort while taking antidepressants — the combination can cause serious side effects.
Zinc - is a nutrient linked with mental functions such as learning and behavior. Low levels of blood zinc are associated with depression, taking a 25-milligram zinc supplement daily for 12 weeks can help reduce depression symptoms. Taking zinc supplements can also increase the amount of available omega-3 fatty acids in the body.
Folate - Taking 500 micrograms of folic acid has been linked with improving the effectiveness of other antidepressant medications.
Walking - 20 minutes of walking outdoors