How do I know if I have too much vitamin K?
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3 min read
An official Tolerable Upper Intake Level (UL) has not been established for vitamin K from food or supplements, because toxicity from natural forms is extremely rare. The primary concern regarding vitamin K excess relates to the synthetic form, menadione (K3), which is no longer used in supplements due to its toxicity. Recognizing the subtle signs and understanding the different forms of this nutrient are key to ensuring safe consumption.
