Home » FAQs » How do i know when my vitamin d is low ?How do i know when my vitamin d is low ?by Nikhil KumarSeptember 22, 2025Yes, a blood test that measures your levels of 25-hydroxyvitamin D (25(OH)D) indicates that you have a vitamin D deficit. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment. The reCAPTCHA verification period has expired. Please reload the page.