Vitamin D for Runners: Protect Your Bones Before the Race

Here’s‍ a breakdown of the study’s results, based on the provided text:

* ⁢ Bone Damage Protection: runners who received a large dose of⁣ vitamin D3 before the⁢ ultramarathon were⁢ better protected against bone damage compared to those who received a placebo.
* Vitamin D Levels: The vitamin D group had considerably higher vitamin D levels 24 hours after⁢ the race.
* ‍ CTV Levels (Bone breakdown): The vitamin D⁢ group showed decreased ⁢ levels of CTV (a marker of bone breakdown), while the placebo ‍group’s CTV levels remained stable.
* Sclerostin Levels (Bone Formation ⁤Inhibition): Both groups had increased sclerostin after ‍the race, but levels were ⁤significantly higher in the placebo group.
* ⁤ ⁤ PINP Levels (Bone ⁣Formation): The vitamin D group exhibited significantly more PINP (a marker of bone formation).
*⁤ Procalcitonin Levels (Inflammation): The vitamin D group was better protected from procalcitonin (a ⁣signal of inflammation), while procalcitonin levels⁣ spiked in the placebo group.