Vitamin D and Skin Protection: What People in the Macedon Ranges Need to Know
- Jun 24
- 2 min read
One of the questions that comes up most in the clinic, particularly through the colder months, is this: if I'm protecting my skin from UV, am I missing out on vitamin D?
It's a fair concern. UV radiation from the sun is both the primary cause of skin cancer and the body's main source of vitamin D. For anyone managing their skin cancer risk or monitoring existing spots, those two things can feel like they're pulling in opposite directions.
According to Cancer Council Australia, sensible sun protection does not put most people at risk of vitamin D deficiency. And for people living in the Macedon Ranges, the guidance is more nuanced than most patients realise.
In winter, the rules change
In southern parts of Australia, including central Victoria, the UV Index regularly drops below 3 during late autumn and winter. When that happens, Cancer Council guidance says sun protection is not required. Spending time outdoors in the middle of the day with some skin uncovered is actively recommended to support vitamin D production during these months.
You can check the current UV Index for Woodend through the Bureau of Meteorology website or the free SunSmart app. When no UV Alert is issued, you're in a window where some gentle unprotected sun exposure is appropriate and beneficial.
If you've previously had skin cancer
Cancer Council Australia specifically identifies people who avoid sun exposure because they've had skin cancer, or are at high risk, as a group who may need to speak to their doctor about whether a vitamin D supplement is appropriate. This is a practical step that many patients in this situation manage easily in conversation with their GP.
It's also worth noting that several studies have found regular sunscreen use has minimal impact on vitamin D levels over time. Using sunscreen on high UV days isn't what puts your levels at risk.
How much sun is actually enough?
Cancer Council Australia has published a clear, practical guide. We've made it available to read and download below.
Download: How Much Sun Is Enough? — Cancer Council Australia
If you have questions about your skin or would like to book a check at SkinGP Woodend, call us on (03) 9969 5000 or book online. No referral required.
Resource credit: Cancer Council Australia. All intellectual property belongs to Cancer Council Australia.