{"id":9149,"date":"2026-04-01T15:44:49","date_gmt":"2026-04-01T09:59:49","guid":{"rendered":"https:\/\/medicosnext.com\/?p=9149"},"modified":"2026-04-01T15:44:50","modified_gmt":"2026-04-01T09:59:50","slug":"vitamin-d-deficiency-in-children-what-you-need-to-know","status":"publish","type":"post","link":"https:\/\/medicosnext.com\/?p=9149","title":{"rendered":"Vitamin D deficiency in Children: What you need to know"},"content":{"rendered":"\n

Dr. Bhumika G.C.<\/strong> is a pediatrician serving in the Nepali Army, currently posted at the Military Hospital, Itahari. She is also a Lecturer at the Nepalese Army Institute of Health Sciences (NAIHS). An alumnus of AFMC, Dhaka (MBBS) and Patan Academy of Health Sciences (MD Pediatrics), she is deeply passionate about advancing child health through evidence-based practice, academic engagement, and clinical excellence.<\/p>\n\n\n\n

<\/p>\n\n\n\n

A mother walks into a pediatric outpatient department with her seven-year-old daughter in tow. The child complains of pain in both legs every night. The mother anxiously asks the doctor if her child\u2019s vitamin D level should be checked. This scenario has become increasingly common. In recent years, both doctors and parents have become more aware, and sometimes overly concerned, about children\u2019s vitamin D levels.<\/p>\n\n\n\n

What Is Vitamin D?
<\/strong>Vitamin D is a fat-soluble vitamin essential for bone health, mineralization, and normal growth. It plays a key role in maintaining strong bones by helping the body absorb calcium from the gut.Most of vitamin D (about 90%) is produced in our skin when it is exposed to ultraviolet (UV) rays from sunlight. Only a small amount comes from dietary sources such as fish, cod liver oil, egg yolk, liver, and mushrooms.<\/p>\n\n\n\n

Why Does Vitamin D Matter?
<\/strong>Vitamin D deficiency is now recognized as a global public health problem with several adverse health consequences. Without adequate vitamin D, calcium absorption is impaired, leading to softening of growing bones.Severe deficiency causes nutritional rickets, a condition usually seen in toddlers and school-aged children. Rickets results from defective mineralization of growing bones and cartilage and presents with bowed legs, bone pain, delayed growth, and skeletal deformities.In adults, vitamin D deficiency leads to osteomalacia, characterized by bone and joint pain, muscle weakness, and difficulty walking.<\/p>\n\n\n\n

What About Other Health Claims?
<\/strong>Vitamin D receptors are found in many tissues of the body. Because of this, low vitamin D levels have been linked to infections, diabetes, asthma, and autoimmune diseases in observational studies.However, various clinical trials have not shown strong benefits of vitamin D supplementation in otherwise healthy children. Studies assessing the effectiveness of vitamin D for the prevention of respiratory infections, asthma, or allergies have mostly failed to show consistent benefit.Current evidence suggests that outside of bone health, there is no strong scientific support for routine vitamin D supplementation in healthy children. Its main proven benefit remains the prevention of rickets and maintenance of normal bone growth.<\/p>\n\n\n\n

South Asia and Nepal: High Deficiency in a Sunny Region
<\/strong>Despite abundant sunlight, South Asia,including India, Pakistan, Bangladesh, and Nepal,has very high rates of vitamin D deficiency among children and adolescents.Several studies show that more than half of children in this region have low vitamin D levels. In Nepal, both rural and urban studies have reported widespread deficiency, even among toddlers and young children.Factors such as darker skin pigmentation, air pollution, long indoor school hours, reduced outdoor play, and diets low in dairy products and oily fish contribute to this problem.Modern lifestyles have further worsened the situation. Increased screen time and urbanization mean many children spend most of their day indoors, limiting sun exposure even in sunny environments.<\/p>\n\n\n\n

How Low Is \u201cLow\u201d Vitamin D?
<\/strong>Blood levels of 25-hydroxyvitamin D are used to assess vitamin D status. Although exact cut-off values vary, vitamin D deficiency is generally considered at levels below 20 ng\/mL,insufficiency at 12 to 20 ng\/ml and severe deficiency below 12 ng\/mL.Most children can maintain adequate levels with normal sun exposure and a balanced diet, while others may require supplementation depending on risk factors.<\/p>\n\n\n\n

Testing for Vitamin D: Who Needs It?
<\/strong>Given how common deficiency is, should every child be tested? The answer is no.
Routine screening of healthy children is not recommended. Mass testing often leads to unnecessary investigations, increased healthcare costs, and parental anxiety, without clear clinical benefit.The rising demand for vitamin D testing has shown that many children tested have no symptoms and normal levels. Over-testing also places additional strain on already overburdened healthcare systems.<\/p>\n\n\n\n

Who Should Be Tested?
<\/strong>Testing should be limited to high-risk children, including those with:
\u2022 Bone pain, muscle weakness, or signs of rickets
\u2022 Poor growth or delayed milestones
\u2022 Chronic gastrointestinal, kidney, or liver disease
\u2022 Obesity
\u2022 Long-term use of steroids or anti-epileptic drugs
\u2022 Minimal sun exposure with additional risk factors<\/p>\n\n\n\n

In routine pediatric visits, testing is unnecessary unless there is a clear clinical indication.<\/p>\n\n\n\n

Supplementing Children: When and How Much?
<\/strong>Prevention is always better than cure. All infants require vitamin D supplementation, as breast milk alone does not provide enough vitamin D and sun exposure in infancy is limited.A daily dose of 400 IU of vitamin D from early infancy is safe, affordable, and effective in preventing rickets. This applies to both breastfed and formula-fed infants.School-aged children,with their requirements of 400 to 600 IU daily,usually do not require supplements unless their diet or sun exposure is inadequate or they have risk factors. When needed, modest supplementation is sufficient. Routine high-dose supplementation is not advised, as excessive vitamin D can rarely cause harm.<\/p>\n\n\n\n

What Do Studies Show?
<\/strong>In children with confirmed vitamin D deficiency, supplementation effectively restores normal levels and prevents rickets. Small improvements in bone mineral density may occur in deficient children.
However, in children with normal vitamin D levels, supplementation does not provide additional skeletal or non-skeletal benefits.<\/p>\n\n\n\n

Practical Takeaways for Parents and Doctors
<\/strong>Vitamin D deficiency is a real health concern, especially in our region, but the solution lies in balance.
\u2022 Sunlight: Short periods of safe sun exposure with exposed skin surface, help natural vitamin D production
\u2022 Diet: Fortified milk, yogurt, eggs, and fatty fish are useful sources
\u2022 Supplements: Essential for infants; selective use in older children
\u2022 Testing: Avoid routine testing in healthy children
\u2022 Treatment: Treat confirmed deficiency<\/p>\n\n\n\n

Conclusion
<\/strong>The increasing trend of vitamin D testing and supplementation in children has generated much debate. Current evidence supports a targeted approach,identifying and treating children who are truly deficient, while avoiding unnecessary testing and supplementation in healthy children.A balanced strategy that promotes adequate nutrition, safe sun exposure, and judicious use of supplements ensures children receive the benefits of vitamin D without unnecessary medicalization.<\/p>\n","protected":false},"excerpt":{"rendered":"

Dr. Bhumika G.C. is a pediatrician serving in the Nepali Army, currently posted at the Military Hospital, Itahari. She is also a Lecturer at the Nepalese Army Institute of Health Sciences (NAIHS). An alumnus of AFMC, Dhaka (MBBS) and Patan Academy of Health Sciences (MD Pediatrics), she is deeply passionate about advancing child health through …<\/p>\n","protected":false},"author":110,"featured_media":9150,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[107,42],"tags":[],"class_list":["post-9149","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-flash-news","category-in-the-news"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/medicosnext.com\/wp-content\/uploads\/2026\/04\/Page-22-Option-B-scaled.png?fit=2560%2C1707&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/medicosnext.com\/index.php?rest_route=\/wp\/v2\/posts\/9149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medicosnext.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/medicosnext.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/medicosnext.com\/index.php?rest_route=\/wp\/v2\/users\/110"}],"replies":[{"embeddable":true,"href":"https:\/\/medicosnext.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9149"}],"version-history":[{"count":1,"href":"https:\/\/medicosnext.com\/index.php?rest_route=\/wp\/v2\/posts\/9149\/revisions"}],"predecessor-version":[{"id":9151,"href":"https:\/\/medicosnext.com\/index.php?rest_route=\/wp\/v2\/posts\/9149\/revisions\/9151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medicosnext.com\/index.php?rest_route=\/wp\/v2\/media\/9150"}],"wp:attachment":[{"href":"https:\/\/medicosnext.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medicosnext.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medicosnext.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}