How much vitamin d should you take?
Sources:
suggests that for most people, supplementing with 1000 to 2000 IUs (international units) of vitamin D per day is probably safe and will help maintain adequate vitamin D levels in their system. He also mentions that there are individuals who may require higher levels of supplementation to achieve sufficient amounts for mental and physical health. Since vitamin D is involved in numerous processes in the brain and body, maintaining proper levels can support immune function and may reduce susceptibility to acute respiratory tract infections. However, it's essential to avoid excessively high doses, and individuals should get their blood levels tested to determine the appropriate supplementation amount, as some may require as much as 5000 to 10,000 IUs per day based on their specific needs 1.
Dr. Rhonda Patrick, another expert on the , also mentions the importance of vitamin D and its role as a steroid hormone produced by exposure to the sun. In the context of modern lifestyles, where outdoor exposure is limited, supplementation becomes important. Around 70% of the US population has inadequate vitamin D levels, highlighting the broad need for supplementation. She suggests that while 1000 to 5000 IUs of vitamin D per day is generally safe for most people, individuals should ideally get their levels tested to tailor their intake accurately 2.
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