Written by: Nancy Dixit
Many people are turning to vitamin D supplements due to increased awareness of deficiency. However, several factors can affect their effectiveness:
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One key reason vitamin D may not work is bioavailability—how well your body absorbs it. As a fat-soluble vitamin, it needs dietary fats for proper absorption.
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Taking the wrong dosage can limit the benefits. Most adults need between 600 and 800 IU, but this can vary based on age, weight, and health. Always consult your doctor for tailored advice.
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Your genetics can influence how well you utilize vitamin D. Some people may have variations that make them less responsive to supplements.
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Vitamin D is known as the "sunshine vitamin" because your body produces it from sunlight. If you’re not getting enough sun, supplements may not fully make up for the deficiency.
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Conditions like kidney or liver disease can prevent your body from converting vitamin D into its active form, making supplements less effective.
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Obesity can impact how vitamin D is stored and used in your body. The vitamin can get trapped in fat cells, making it less available for your body to use. This may lead to lower levels in the bloodstream, despite supplementation.
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Some medications can interfere with vitamin D absorption. Discuss your medications with your doctor to ensure you're getting the benefits.
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