Sun protection is often the first rule of skincare. During the summer months, we are reminded to slather on sunscreen to prevent sunburn and the consequences of excessive sun exposure — whether health or beauty related. However, a certain amount of sunlight is beneficial to our health, and even our microbiome.
As approximately 80% of our Vitamin D requirements come from ultraviolet B (UVB) exposure (1), a certain amount of time in the sun, without intense exposure, is a natural way to avoid Vitamin D deficiency.
Whilst it has long been known that Vitamin D is important for bone health, recent findings suggest another role for it — in our microbiome. Canadian researchers have recently found a positive correlation between Vitamin D levels and microbial diversity in the gut. And as many previous studies show, a diverse gut microbiome is associated with better health and well-being outcomes.
This research provides further reasoning to suggest that we need to be mindful about our Vitamin D intake.
And as we head into the winter months (except our lucky Southern Hemisphere countries), and SPF protection is still a must-have in skincare routines, we need to keep a watchful eye on our Vitamin D. Lots of time outside and a nutritious, varied diet will help combat any possible deficiencies associated with the winter months.
References: Medical Xpress – Where the sun doesn’t shine? Skin UV exposure reflected in poop