19 Medical Tests Every WOMAN Needs | Health.com | Hallie Levine and Amanda Gengler | VITAMIN D TEST | Since so many of us (up to 75 percent, a 2009 study suggested) have low levels, it's a good idea to get tested in your 20s when you go in for your physical, advises Marianne Legato, MD, professor emeritus of clinical medicine at Columbia University Medical Center.
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Vitamin D Deficiency Symptoms & Sources to Reverse it!
Here are eight signs or symptoms that you may have a vitamin d deficiency. This is one of the most common nutrient deficiencies in the world. Learn more here: https://authoritynutrition.com/vitamin-d-deficiency-symptoms/