Why Do My Feet Get Extremely Cold After Taking a Multivitamin?
1. Introduction Experiencing severely cold feet after taking a multivitamin is generally the result of peripheral vasoconstriction driven by an autonomic nervous system response to specific high-dose nutrient compounds, such as niacin or pyridoxine. These vitamins, when consumed in highly concentrated, synthetic forms, can initiate a systemic cardiovascular reflex that actively shunts warm arterial blood … Read more