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Vitamin D, also known as the ‘sunshine vitamin’, is an essential nutrient that your body needs. It plays a vital role in keeping your bones, teeth, and muscles healthy. Vitamin D can be naturally obtained from sun exposure, and is also present in foods such as oily fish, red meat, liver, and egg yolks. As vitamin D has a crucial role in our overall health, a deficiency can lead to serious illnesses. Vitamin D deficiency is one of the most common nutritional deficiencies worldwide, and people who have very little or no sunshine exposure are at greater risk. Ignoring the signs of deficiency can lead to serious health issues, including osteoporosis, weakened immunity, and even heart disease. Here are three signs of vitamin D deficiency you should never ignore.

What is vitamin D, and why is it important?

Vitamin D is a fat-soluble nutrient that maintains healthy bones, supports immune function, and promotes overall well-being. It mainly exists in two forms: Vitamin D2 (ergocalciferol), derived from plant sources and fortified foods, and Vitamin D3 (cholecalciferol), produced in the body due to sun exposure, and it is also found in animal-based foods such as salmon, cod, and egg yolks. Vitamin D helps the body absorb calcium, promotes strong bones, and prevents conditions like osteoporosis. It also supports immune system function and potentially reduces the risk of infections and chronic diseases, such as autoimmune diseases and certain cancers. Vitamin D also plays a crucial role in influencing mood, cardiovascular health, and muscle function. Now let’s take a look at the key signs of vitamin D deficiency.

Frequent illness or infections

If you find yourselves rushing to the hospital every now and then, it might be a sign of vitamin D deficiency. It could indicate a compromised immune system, and it's a red flag for vitamin D deficiency. Vitamin D is critical for activating immune cells that fight off viruses and bacteria. Without enough vitamin D, the body becomes more susceptible to infections like colds, flu, or respiratory issues. Studies suggest that vitamin D deficiency is linked with , such as the common cold, bronchitis, and pneumonia.

Fatigue and tiredness

Feeling constantly tired, even after adequate rest, is a hallmark of vitamin D deficiency that’s easy to overlook. You need to know that vitamin D plays a key role in energy production and muscle function. When levels are low, the body struggles to convert food into energy, leaving individuals sluggish. Many have linked low vitamin D with fatigue symptoms. This fatigue can manifest as difficulty concentrating, low motivation, or a general sense of being 'off.' Unlike normal tiredness, it doesn’t always improve with sleep. If you’re dragging through the day despite healthy habits, consider checking your vitamin D levels.