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Nutrition

Vitamin D Repletion

Vitamin D repletion restores low vitamin D levels with sun, food, and guided supplementation over weeks. Lab testing should direct dose—not guesswork.

Vitamin D repletion is the process of restoring low blood vitamin D to adequate ranges through safe sun exposure, fortified foods, and supplementation guided by labs—not megadosing without testing. Deficiency links to bone health, immune function, and mood in some populations; repletion takes weeks to months depending on starting level and dose.

Pair with adequate calcium, magnesium, and resistance training for bone support.

Common questions

  • How long does vitamin D repletion take?

    Many protocols show meaningful lab shifts over eight to twelve weeks, but dose and starting deficiency matter. Retest rather than staying on high doses indefinitely.

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