Tag: 25 oh d blood test

Over one billion people worldwide are estimated to have a vitamin D deficiency, often unknowingly. If you're supplementing but still feel fatigued, it's crucial to understand how do you know if your body is absorbing vitamin D effectively to protect your bone density and overall health.

According to a 2018 study, the weighted prevalence for vitamin D deficiency was 2.6% in the U.S., with an additional 40.9% considered insufficient. Defining what is classed as a low vitamin D level varies, but understanding the general classifications is key to maintaining proper bone and overall health.

According to the National Institutes of Health, a significant portion of the global population is affected by vitamin D deficiency. Knowing what number is considered severe vitamin D deficiency is crucial, as this condition can lead to significant health problems, including rickets in children and osteomalacia in adults.