Vitamin D levels

One of my loyal army of readers (cough) kindly enquired as to my vitamin D status. I had my blood tested during the peak summer, after significant sun exposure, and my vitamin D3 blood serum level came in at 63 nmol/L. This is not 'deficient' but it does fall into the 'insufficient' category. Anything above 70 is classed as replete.

This isn't as bad as I feared but it's still pretty dismal given that it represents my peak vitamin D levels. Also, because there seems to be such a high tolerance before there are any expected side effects, I'd prefer to err on the higher side of the spectrum.

To give my D3 levels a boost I'm taking these tablets, each of which provides 500% of the woefully inadequate RDI.