Chemical imbalances

I smoked pot for about 5 months on and off.  After I quit i began to feel depressed and I was wondering if smoking pot decreases serotonin levels in the brain?  Its been 2 months since i smoked pot and i am a little better but im still depressed.  If it does decrease serotonin levels what is the natural suplement formula for restoring serotonin levels in the bran?

[Roger Gould, M.D.]

Yes, Pot can cause serotonin depletion. I can't give you any recommendations for natural supplements. Its generally understood that they are not effective, except for St. John's wort which is being researched.