Many studies confirm the effectiveness of St. John's wort. The substances were extremely well tolerated, and no side effects were reported by any of the patients. St. John wort's can be found in most health food stores. It may take a couple of weeks before it starts taking effect. A side effect of the herb is that it can cause an increased sensitivity to sun.
B vitamins are also effective in helping maintain adequate serotonin levels.
The B-complex supplement should contain the essential B vitamins, which are thiamin, riboflavin, niacin, vitamin B6, vitamin B12 and pantothenic acid. B6 is found in lean meat, fish, brewer's yeast, wheat germ, peas, soybeans, and cooked dried beans. This plant has been used for years by South Pacific islanders. It is a calming plant that elicits a feeling of well-being and contentment. Many studies have shown Kava to be effective for depression without side effects.