Vitamin D3
often with K2
The 'sunshine vitamin' most people are low in; supports bone, immune, and mood health. Commonly paired with K2.
Builds up to a steady level with regular use rather than clearing between doses.
- Half-life
- 3.0 weeks
- Typical dose
- 2000 IU
Stored long-term; t½ of circulating 25-OH-D is weeks.
References
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