- After a cold winter with little sunlight lack of vitamin D is common, but how do you know if your levels are too low? Traditionally lack of Vitamin D is linked with poor bone health, but new studies suggest that milder deficiency may also be linked to asthma, some cancers and diabetes. Dr Mark Porter investigates and hears from a night shift worker who had such excruciating pain in her hands she thought that she had arthritis - when her doctor checked for vitamin D levels, 3 weeks of supplements cured the pain.
With TB, it is suggested that in immigrants to the UK from the African continent, TB is dormant, but once their vitamin D levels fall, it activates.
The bit about hayfever is quite interesting. I have not had hayfever this year and I used to get it sporadically throughout summer. I had put it down to my paleo diet rather than supplementation with vitamin D - but this last year I have supplemented with 2500 IU over autumn and spring and 10000IU most days over winter.
This also raises a point I have been meaning to blog about for a few weeks. Historically when I have been bitten by mosquitos, the bitten area has ballooned up. But whilst on holiday in France earlier this year, I got bitten a few times and although the bite itched for a day or two, there was no gross inflammation unlike previously. So what is the cause? Vitamin D supplementation? The paleo diet leading to a refined immune response?