Monday, 8 September 2014


I had a follow up with the sports doctor dude about my blood tests. There was only one test that had results outside the norm. Vitamin D levels.

My results were 53 nmol/L, where the expected range is 80-110 nmol/L.

This is an issue because vitamin D is key to the calcium uptake process. The increased bone signal in my MRI could very well be caused by an insufficient amount of calcium uptake, and explain the pain I've been experiencing. Working the other way, that means to fix that, we need to fix my Vitamin D levels. So, some oral vitamin D suplementation, and more time working on my tan lines.

Yep. I confirmed with a licensed medical practitioner, that his advice was for me to get better tan lines. Sorry Dawns, it's for my health.

Anyway, I'll proceed with the advice given, but I believe I should understand the advice as well. Queue some internet based research, and this article published by the Royal Australian College of General Practitioners (RACGP).

Here's the little synopsis from the start.

"Vitamin D assays are inconsistent and inaccurate and there is weak evidence around the level of 25-hydroxyvitamin D (25(OH)D) that is optimal. Evidence of links between vitamin D deficiency and disease come from observational studies and there is little support from randomised controlled trials of vitamin D supplementation. Where there is evidence of a link, increased risk is largely confined to very low 25(OH)D levels, with minimal health gains for 25(OH)D levels greater than 50 nmol/L. New evidence indicates that both high and low 25(OH)D levels may be associated with increased health risks. Taken together these considerations present a considerable challenge to clinical decision-making around treatment on the basis of 25(OH)D levels."

It suggests that my levels might not be an issue, so perhaps there is something else that's causing my issue. Or, it's possible that being an athlete makes me a special snowflake that puts more stress on their system (duh) and that needs more D to support it (maybe).

I'm also reminded of the low impact nature of my sport, and how that has been shown to adversely affect bone density. Is it time for me to go do a weights block again?

There's only one thing obvious to me here. More study is required to understand the situation better.

D: 21.2km
A: 172m

PMPW: 88kg

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