Why do I need a vitamin D test?Your health care provider may have ordered a vitamin D test if you have symptoms of a vitamin D deficiency (not enough vitamin D). These symptoms include:Bone weaknessBone softnessBone malformation (in children)FracturesThe test may be ordered if you are at a higher risk for a vitamin D deficiency. Risk factors include:Osteoporosis or other bone disorderPrevious gastric bypass surgeryAge; vitamin D deficiency is more common in older adults.ObesityLack of exposure to sunlightHaving a darker complexionDifficulty absorbing fat in your dietIn addition, breastfed babies may be at a higher risk if they aren't taking vitamin D supplements.
