- mixed diet with plenty of fruit and veggies. Plenty of it.
- I have my blood tested once or twice a year for several years now.
- high training volume for years (~18-22h/wk)
Supplements:
- I supplement Vitamin D3 in winter. First test showed very low levels in this period.
- Furthermore, following a period of muscular problems with running I did a food log on Mg intake (serum Mg is not a good indicator for status). Super low intake. Changing diet towards a higher intake is not an option, I don’t like certain Mg rich food. Therefore, I supplement Mg.
- I don’t eat a lot of oily fish, hence, I supplement omega-3 (pure capsules, no vitamine E added)
- I’m into 6-12h racing. On big training days, in big blocks or races I supplement riboflavin (A Placebo-Controlled Trial of Riboflavin for Enhancement of Ultramarathon Recovery - PMC)
I would never ever swallow multi vitamin stuff.