The Rapid 25 - OH Vitamin D test
This test allows you to safely test you Vitamin D deficiency/sufficiency levels at Mary's clinic. The test provides results within 10-20 minutes and Mary includes a consultation for you.
Research is showing what a key player vitamin D is for multiple body systems. It bests biological function is that it increases calcium and phosphorus absorption and thus directly influences bone health metabolism. It also influences our immune system, heart health, mood, autoimmune conditions and cell differentiation.
Risk Factors for Deficiency include
- Vitamin D production in the skin depends on the incident angle of the sun and thus latitude, season and time of day. Consequently people with dark or covered skin and users of sunscreen, synthesise less vitamin D.
- Sun exposure during the winter months at latitudes above approximately 33 degrees north or below 33 degrees south is insufficient for production of vitamin D3 in the skin. Ireland is above 40ºN.
- People taking medication can significantly deplete vitamin D status e.g. steroids, metformin, anti-convulsants and medications that interfere with digestion/absorption such as proton pump inhibitors.
- People who are obese( as vitamin D is deposited in body fat stores, making it less bio-available) and/or have a sedentary lifestyle(likely to have reduced sun exposure)
- People with digestive impairments such as IBD, especially those who have had small bowel resections, or fat malabsorption disorders.
- Pregnant and breastfeeding women
- Babies( particularly exclusively breastfed) and young children under 5 years of age.
- The elderly, due to reduced capacity to synthesise vitamin D in the skin when exposed to UVB radiation
Also did you know that studies have shown distinct demographic differences in rates of vitamin D insufficiency and deficiency with people with darker skins/skin tone.
What you can do now?
- Get tested
- When the sun shines, jump out into it, we should get at least 15 mins three times a week.
- Resistance exercise, [lifting weights in the gym, using your body weight in yoga] are useful for promoting bone growth.
- Eat more Oily fish like salmon, mackerel and herring [wild!]
- Eat good quality eggs
- Supplementation with a good quality Vitamin D3 supplement.
What is the optimal range on a blood test?
Optimal range is 50-100 ng/mL (125-250 nmol/L). I like to see readings over 80ng/mL.
Having blood tests to measure the amount of vitamin D in your blood is the only way to know if you’re getting enough vitamin D or not.
You can get a blood test at my clinic or you can order an in-home test from Mary Carmody Nutrition or get an advanced test with Mary which is sent to a laboratory. All of these methods of testing should give you accurate results.
This test involves pricking your finger to take a small blood sample which I place on the test unit to get your result.
Your tests results will show whether you’re getting enough vitamin D or not, and whether you may need to take supplements or expose your skin to the sun more.