There’s a lot to like about winter. I LOVE reading by a roaring fire with a little glass of spicy red. I love the first flush of going outside in snuggly boots, coat and hat (until my bones start to feel the chill)...
I shan’t list all the things I don’t like about winter, but right up there must be catching a cold, and feeling a bit blue come January.
In this blog, I’m going to explain why so much of that is down to your levels of vitamin D, which is sometimes called the ‘sunshine vitamin’ (and hence a lack of it in winter).
We’ll look at all the stuff you really need to know about vitamin D (this is how I’m going to convince you that really is vital for life and you should get yourself tested if you don’t know your levels already). We’ll look at how you can tell if you might be a bit low, who should get tested, and where to have it done (and what to say to your doctor to have this done free of charge). Oh, and how to boost your levels naturally through food. Not gonna lie though, food sources are will NEVER give you enough vitamin D in winter.
Vitamin D is a superstar vitamin. More correctly, it’s actually a hormone. If levels are too low, this is bad news for health. I’m talking cancer, osteoporosis, rickets in children, asthma, tuberculosis, multiple sclerosis (and other autoimmune diseases), heart disease, diabetes and dental problems [source: PLoS One. 2013;8(3):e58725.]
Research shows you’re 11 times more likely to be depressed if you have low vitamin D than if you don’t. [Source: PLoS One. 2013;8(3):e58725.]
Vitamin D can put the brakes on the progression of Alzheimer’s disease. [source: MT Mizwicki, et al. Genomic and Nongenomic Signaling Induced by 1α,25(OH)2-Vitamin D3 Promotes the Recovery of Amyloid-βPhagocytosis by Alzheimer's Disease Macrophages. J Alzheimers Dis. 2012 Jan 1;29(1):51-62]
Symptoms like these are commonly overlooked because they don’t feel life-threatening, and they’re often dismissed as normal, everyday aches and pains you have to deal with. But you don’t have to put up with these symptoms of ill health!
If any of the above resonates with you, then you should definitely get tested. You might find your GP will do this for you. My experience is that they are usually amenable to this particular test.
If your doctor won’t test, consider getting it checked out privately. In the big scheme of things (like life and, you know, your health), the test is not expensive but it could change your enjoyment of your life.
The test is the 25-hydroxy vitamin D test (also known as the 25-OH vitamin D test or Calcidiol 25-hydroxycholecalciferol test). It’s the most accurate way to measure how much vitamin D is in your body.
Your doctor will want to know that there is a valid reason for having you tested. Go back through the list of symptoms and go in strong with this being the reason why you want to be tested.
If you’re the kind of person who doesn’t want to ask, feels uncomfortable asking or is just curious to know their levels, you can get the test done privately for £44. It’s a finger prick test, so you can do it easily at home, then get guidance on how much to supplement safely. If this is you, and you want to know more, just hit reply to this email and we’ll talk.
If you do take a test and you’re very low, you’ll need an intense 4-6 weeks supplementation at a high dose and then re-testing to see the impact it’s had. There is such a thing as too much vitamin D (known as vitamin D toxicity). You’d have to be going some way to get there, but it is possible, which is why it is essential you know your levels before you start guzzling any supplements.
I know what you’re thinking. Here are a few of those ‘yes, buts’ you have going on…
I hear you. If you seriously have nothing wrong with you, if you didn’t identify with any of the symptoms in the list, then don’t bother. But if you did…
And here’s a cautionary tale… one of my clients [actually it’s me, this is true, but don’t tell anyone] enjoyed sunning herself in the garden this summer with no sun cream (except for her 2 week holiday in August). But in spite of it being mid-summer, her levels were only ¼ of what they should have been. The moral of this story is, be tested.
This summer I discovered a lovely little app for my phone called D minder. It helps you track your levels of vitamin D by entering your test results and filling in details like whether you supplement and how often you go out in the sun. It will track your sun exposure and its impact on your vitamin D levels. It’s a little technical (and by that I mean just a little – you won’t need a PhD to understand it) so it’s probably one for anyone with very low vitamin D or the geeks among you. (Not judging…)
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