
Vitamin D3 is a steroid hormone that regulates a significant portion of the human genome, influencing immune system function, blood pressure, and bone homeostasis. It also activates tryptophan hydroxylase 2, an enzyme crucial for converting tryptophan into serotonin in the brain. Given widespread inadequacy, supplementation is often recommended.
about D3 supplementation and again foods that can increase D3.
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"Rhonda Patrick identifies vitamin D as one of her top three 'superstars of nutrients,' emphasizing its importance, ideal blood levels, and recommended supplementation dosages for overall health."



