Giardiasis: A Possible Culprit Behind Vitamin D Deficiency in Children

Izyaslav Doctor Addresses Vitamin D Deficiency in Children: Giardiasis as a Possible Cause A recent video by Ukrainian doctor, Ornat Vasyl, has highlighted a common concern among parents – vitamin D deficiency in children, even with adequate sun exposure. The video, uploaded on June 8th, 2025, addresses a comment from a user, Irina Fevral, whose child experienced low vitamin D levels despite regular outdoor play. Dr. Ornat suggests that giardiasis, a parasitic infection of the intestines, may be a contributing factor. "Children who attend daycare or school are more prone to giardiasis," Dr. Ornat explains in the video. "This infection can interfere with nutrient absorption, leading to deficiencies like vitamin D." He recommends a three-day stool test to check for the presence of giardiasis, stressing the importance of early detection and treatment. The video has garnered significant attention, with over 2600 views, highlighting the widespread relevance of this health issue. The video serves as a reminder for parents to be aware of the potential link between intestinal parasites and vitamin D deficiency. Early diagnosis and treatment of giardiasis are crucial for ensuring children's overall health and well-being. Further research into the prevalence of this issue in Ukraine would be beneficial.