04/12/2025
See that shadow? Time for your vitamin D reminder! ☀️
I was out running yesterday and spotted my shadow stretching way longer than I am tall…and while I sometimes wish my legs were a bit longer than they actually are, it’s really just a sign that UV radiation is low.
I know we’re already in December and the recommendation is supplementation from October, but I come across so many people who aren’t taking it because they forget or don’t realise they should. Even on sunny winter days, the sun just isn’t strong enough to produce vitamin D through our skin ☀️
So if you haven’t started yet, it’s not too late - now’s the time. When your shadow becomes longer than you are, that’s your cue to start supplementing ✨
In the UK, official guidance recommends everyone over 1 year old takes 10µg daily from autumn through winter.
I’m all about getting nutrients from food, but vitamin D is the exception. We generally can’t get enough from diet alone during colder months, even from sources like oily fish, eggs, and fortified foods. And the stores we build up over spring/summer become diminished.
Why does it matter? 🤔 Vitamin D works with calcium and phosphorus to keep your bones, muscles, and teeth healthy. Without enough, your body struggles to absorb calcium properly. Low levels have also been linked to fatigue, poor immune function, hair loss, and low mood.
Children under 5 should take a vitamin D supplement all year round (with vitamin A), and babies* need 8.5-10µg daily from birth.
Some people need supplements all year long: those with dark skin, those who cover most of their skin outdoors, or those with limited outdoor access (housebound, night shift workers etc).
When choosing a supplement, look for 10µg dosage (adults and kids over 1yrs) and ideally avoid added sugar.
Think of it as a little daily hug for your body until spring returns 💛
* Babies having more than 500ml of infant formula daily don’t need additional supplementation (formula is already fortified).