In a video shared on Instagram, the doctor spoke about how supplements fail to provide any meaningful benefit in those with vitamin D deficiency. “The problem usually isn’t the supplement itself. In most cases, it’s because vitamin D is being taken incorrectly, the dose isn’t appropriate for the degree of deficiency, or the body lacks some of the nutrients needed to properly activate and use it. I see this all the time in the clinic,” Dr Yaranov said.

He added, “Someone has been taking vitamin D faithfully for months, but when we check their labs, their levels are still low. The good news? The fix is often surprisingly simple. It usually comes down to these three common mistakes.” So what are these mistakes?

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