You’ve heard of vitamin D – it’s the supplement that experts all agree we could do with taking, especially during the winter. However, this is because vitamin D is not technically a vitamin, it’s a hormone. Specifically a hormone manufactured by our bodies in response to sun exposure – so when the days are shorter and darker, we make less of it.
We can also top up our levels by eating foods that contain Vitamin D, but we tend to only get about 10 per cent of our intake through food. So what happens if sunlight is limited and only 10 percent – or probably less – of your total Vitamin D is coming from your meals?