Dr. Manoj Sharma-
Dr. Sharma is a Professor and Chair of the Social and Behavioral Health Department and an Adjunct Professor in Internal Medicine at the University of Nevada, Las Vegas (UNLV). He is a global expert in health promotion.
Recent Changes in Vitamin D Guidelines
A recent change suggested by the Endocrine Society calls for stopping routine checks for Vitamin D and limiting Vitamin D supplementation beyond the recommended levels only to high-risk groups. These guidelines have recently been published in the Journal of Clinical Endocrinology and Metabolism. These recommendations have sparked controversy in medical circles. Some support these guidelines while others oppose it.
What is Vitamin D?
Vitamin D (also known as calciferol) is a fat-soluble vitamin produced when ultraviolet rays from sunlight fall on the skin. It is also present in some foods, used as an additive, and available over the counter as a supplement. Its role in the human body is to enhance calcium absorption and maintain optimum blood levels of calcium and phosphate that promote bone health. Deficiency can lead to rickets in children and osteomalacia in adults. The optimum level of Vitamin D in the blood is between 20-50 ng/mL. Excess can lead to elevated calcium levels, kidney stones, and even death. The recommended daily allowance for adults is 15 mcg or 600 IU.
The Controversy Surrounding Vitamin D
Low levels of Vitamin D have been associated with various health issues such as cancer, heart disease, and increased mortality rates. However, randomized controlled trials (RCTs) have shown that this association may not be valid, leading to questions about routine Vitamin D screening and supplementation. Supporters of the new guidelines advocate for screening and supplementation only in high-risk groups, including children under 18, pregnant individuals, adults over 75, and those with prediabetes.
Opposition to the Guidelines
A small group, possibly backed by industry interests, opposes these guidelines, arguing that a significant portion of the global population suffers from Vitamin D deficiency due to poor diet and limited sun exposure. They advocate for regular testing and supplementation.
What Should You Do?
First, consider consuming foods rich in Vitamin D, such as cod liver oil, trout, salmon, and fortified milk. Second, adopt a healthy lifestyle that includes outdoor exercise and adequate sun exposure. Finally, discuss the necessity of Vitamin D screening and supplementation with your primary care provider to make an informed decision.
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