Low Vitamin D Levels In Adults
The prevalence of vitamin d deficiency is.
Low vitamin d levels in adults. If calcium intake is insufficient or vitamin d is low the parathyroid glands will borrow calcium from the skeleton in order to keep the blood calcium in the normal range. Having a level of 10 ng ml or lower of vitamin d is considered very low. Up to 70 of adult whites and 95 of adult african americans in the us have a vitamin d level under 30 ng ml. A level less than 12 ng ml indicates vitamin d deficiency.
In the united states 35 of adults have the deficiency. When there is sufficient calcium in the diet and sufficient active vitamin d dietary calcium is absorbed and put to good use throughout the body. According to a 2020 review 50 of the worldwide population has insufficient levels of vitamin d. Although the amount of vitamin d adults get from their diets is often less than what s recommended exposure to sunlight can make up for the difference.
Not enough adults have optimal vitamin d levels which should be over 25 ng ml nanograms per milliliter. For most adults vitamin d deficiency is not a concern. However some groups particularly people who are obese who have dark skin and who are older than age 65 may have lower levels of vitamin d due to their diets little sun exposure or other factors.