Vitamin D deficiency is becoming more and more common. We probably know of at least one friend who has been diagnosed as deficient by their doctor but why does it occur so frequently and is it something we need to worry about?
What is Vitamin D?
Our bodies naturally produce Vitamin D when we’re in the sun as our skin responds to sunlight. It’s a vital vitamin that helps our bodies regulate calcium and phosphorus uptake as well as facilitating normal immune function. This helps us maintain strong bones, muscle and overall health.
How much Vitamin D do I need?
Adults require 5 micrograms of Vitamin D until about aged 50, after which we need about 10 micrograms which then increases to 15 micrograms at 70 years and older. Children need 5 micrograms until aged 18.
What happens if I don’t have enough Vitamin D?
Vitamin D deficiency can lead to Rickets (soft bones) in children and Osteoporosis in adults as Vitamin D helps our bodies absorb Calcium. Studies have also linked other illnesses to Vitamin D deficiency including an increased risk of Cardio Vascular Disease, increased risk of cognitive impairment while children can experience severe asthma.
Vitamin D has also shown to have a potentially protective role. Some studies show that Vitamin D could play a role in preventing and or treating type 1 and 2 Diabetes, multiple sclerosis and hypertension.
Where do I find Vitamin D?
While some foods have Vitamin D, they usually don’t have nearly enough for our daily recommended amount. Foods such as fish, eggs and margarine (with added Vitamin D) are good sources, but still don’t contain enough for us to get our daily required amount. The best way to make sure your body has enough Vitamin D is to head outside.
Of course this needs to be done being sun smart, as the same UV rays that provide our bodies with Vitamin D can also cause skin cancer. Here in Australia you only need about 5 to 10 minutes of sun exposure in summer. Avoid times when the UV is at it’s highest, so early morning is best. While banned in Australia, I know some countries still allow sun beds or tanning beds. Never use these period as they increase your risk to develop skin cancer. Rather spend a few minutes outside first thing in the morning watering the plants or enjoying a cup of tea. Don’t spend extended periods in the sun as this will increase your risk of developing skin cancer. Chat to your Dr to see what they recommend first.
If going in the sun for a few minutes isn’t an option for you, your Dr can recommend some supplements for you to take. First consult your Dr before you start taking Vitamin D supplements as taking too much can lead to some unpleasant side effects. Most people don’t require supplementation though, so chat to your Dr to see if they think you require supplementation first.
Who’s at risk for Vitamin D deficiency?
There are several factors that can increase your risk of developing Vitamin D deficiency.
– Being indoors most days
– Having more melanin in your skin
– People who wear clothing that cover their whole or most of their body
– People who take medication that can affect Vitamin D metabolism
– Being obese
– People with a disease or disability that affect Vitamin D metabolism such as renal disease, end stage liver disease and fat malabsorption syndromes such as coeliac disease, cystic fibrosis and inflammatory bowel disease.
– Vitamin D can be found in some foods such as fish, eggs and margarine and milk products to which Vitamin D has been added, but isn’t enough to meet our daily requirements.
– Sunshine is a great source of Vitamin D, but be sun smart.
– Supplementation can be a great option for people who can’t go out in the sun and expose their skin to UV. Talk to your Dr about supplementation if you fall into that category.
– Several factors can put you at risk for developing Vitamin D deficiency.
– Vitamin D is essential for strong, healthy bones, muscles and an immune system.
– If you think you’re at risk of a Vitamin D deficiency, book an appointment with your Dr so he can schedule the correct tests for you.