Vitamin D > Antidepressant
The standardized effect for antidepressant vs placebo is 0.4.
The effect size of 1500mg/day of “>= 60% EPA” Omega-3 supplements, which are cheaper and have fewer side effects, is 0.6.
The effect size of 5000mg/day of Vitamin D is around 1.8!
Why don’t we just get vitamin D from sun exposure?
Due to the UV radiation, being exposed to the sun for a prolonged time will increase the risk of getting skin cancer. Taking supplements is a more effortless way to get vitamin D.