Vitamin D, widely known for supporting bone health, also plays a critical role in maintaining cardiovascular health, particularly in children. Recent research suggests that a deficiency in vitamin D may contribute to the development of heart abnormalities, such as congenital defects, hypertension, and even circulatory dysfunction.

Understanding the relationship between vitamin D and paediatric heart health can aid in the early prevention and management of heart-related issues in children.

Importance of Vitamin D in Child Growth

Vitamin D is essential for calcium metabolism and immune function. It helps regulate calcium and phosphate levels in the body, which are vital for maintaining healthy bones and muscles.

Beyond bone health, vitamin D is involved in several physiological processes, including cardiovascular regulation, inflammation control, and endothelial function, all of which directly impact heart health.

How Vitamin D Deficiency Affects the Heart

  • Increased Risk of Hypertension

Vitamin D helps regulate blood pressure by influencing the renin-angiotensin system (RAS). Deficiency may disrupt RAS, leading to high blood pressure in children.

  • Congenital Heart Defects

A lack of vitamin D during pregnancy can affect foetal heart development, potentially leading to congenital heart defects.

  • Cardiac Muscle Function and Arrhythmias

Vitamin D deficiency can impair myocardial function, contributing to conditions such as cardiomyopathy or arrhythmias.

  • Inflammation and Endothelial Dysfunction

Low vitamin D levels are associated with increased inflammation and endothelial dysfunction, which can contribute to the development of atherosclerosis.

Sources of Vitamin D

  • Sunlight Exposure: The primary source of vitamin D is sunlight.
  • Dietary Sources: Foods rich in vitamin D include fatty fish, egg yolks, and fortified dairy products.
  • Supplements: If dietary intake and sunlight exposure are insufficient, vitamin D supplements may be recommended.

Identifying and Addressing Vitamin D Deficiency in Children Vitamin D deficiency can be diagnosed through blood tests measuring 25-hydroxyvitamin D levels.

Symptoms of deficiency in children may include:

  • Frequent infections due to weakened immunity
  • Fatigue and muscle weakness
  • Bone pain or delayed bone development
  • Increased risk of respiratory issues

Steps to Ensure Adequate Vitamin D Levels

  • Encourage Outdoor Play: Moderate sun exposure helps maintain adequate vitamin D levels.
  • Incorporate Vitamin D-Rich Foods: Ensure a balanced diet that includes both natural and fortified vitamin D sources.
  • Consult a Paediatrician for Supplements: In cases of severe deficiency, vitamin D supplementation under medical supervision can help restore optimal levels.

Conclusion Vitamin D plays a crucial role in paediatric cardiovascular health, and its deficiency can contribute to various heart-related issues. Early detection and intervention can help reduce risks and promote heart health from a young age.

Parents, caregivers, and healthcare professionals must work together to ensure children receive adequate vitamin D through sunlight, diet, and supplementation when necessary.

Disclaimer: The views expressed in this article are of the author and not of Health Dialogues. The Editorial/Content team of Health Dialogues has not contributed to the writing/editing/packaging of this article.

Dr Prashant Prakashrao Patil
Dr Prashant Prakashrao Patil

Dr Prashant Prakashrao Patil (MBBS, MD (Paed.), Fellow (Paediatric Cardiology), Fellow (Paediatric Cardiac Intensive Care)) is a Senior Consultant, Interventional Paediatric Cardiologist at CARE Hospitals, Banjara Hills, Hyderabad, with over ten years of experience in the field. Dr Patil studied medicine at the Grant Medical College, Byculla, Mumbai. In 2008, he completed his MD (ped) at Grant Medical College, Byculla, Mumbai. He completed a fellowship in pediatric cardiac intensive care at Narayana Hrudhayala in 2009 and a fellowship in pediatric cardiology at Narayana Hrudhayala in 2011. To date, he has successfully closed more than 600 pediatric cardiac interventions, including ASD, VSD, PDA, AV fistula closures, pulmonary AV fistula closures, more than 1000 cardiac catheterizations, and more than 200 balloon valvoplasties, and stenting procedures. As well as fetal echocardiography, he specializes in advanced echocardiography techniques. His extraordinary feats have rendered him to be the best pediatric cardiologist in Hyderabad. In addition to being a member of the Indian Academy of Pediatrics, the National Neonatology Forum, and the Pharmaceutical Supply Chain Initiative, he also lectures at Control Sequence Introduction.