The tiredness after a long day is an all-time common thing. But if fatigue doesn’t go away after a good night’s sleep and you wake up feeling no better, it may tell you something else is going on.
Vitamin D deficiency is a potential cause. Vitamin D is essential for calcium absorption and bone and muscle health. It is also critical in nervous and immune systems. But fatigue is not so much related to vitamin D deficiency, and even low levels may go unaddressed and may not even show symptoms at all.
Vitamin D deficiency might occur if vitamin D is not exposed to enough sunlight or food, is not absorbed properly or cannot be converted to a usable form due to some medical conditions.
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People spend most of the day in the city today, in a country with all kinds of sunshine.
1. Persistent fatigue.
Unexplained tiredness is one of the symptoms that can occur with vitamin D deficiency.
A person may feel unusually drained and lack energy or struggle to maintain their usual level of activity. There is no specific diagnosis of low vitamin D through fatigue in the literature and clinical references.
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Persistent fatigue can also be associated with sleep deprivation, anaemia, thyroid problems, stress, infections and many more. So taking vitamin D supplements when you feel tired is not exactly the solution.
2. Muscle Weakness and Aches.
Vitamin D deficiency may affect muscle function. People with deficiency might have muscle weakness, aches, or cramps.
If the deficiency is worse, muscle weakness can interfere with everyday activities. Older adults may also be at risk of falling when muscle weakness and poor bone health are combined.
Unexplained muscle pain should be taken into account along with the other symptoms and not just attributed to vitamin D.
3. Bone Pain or Aching.
Vitamin D is responsible for the body’s absorption of calcium and phosphorus— nutrients that are necessary for good bones.
Vitamin D deficiency in adults can cause osteomalacia, when the bones become softer and can cause bone pain and muscle weakness.
Instead of taking high-dose supplements to treat bone pain, people with chronic bone pain should talk to a health professional.
4. Frequent Muscle Cramps.
Muscle cramps or twitching can develop in people who have significant vitamin D deficiency, especially when vitamin D deficiency affects calcium regulation.
But cramps can also be due to dehydration, physical activity, certain medications, and electrolyte imbalance. They should not be used as an isolated measure of low vitamin D.
5. Mood Changes.
Changes in mood have also been reported as possible symptoms of vitamin D deficiency.
The clinical sources cite mood changes or depressive feelings as symptoms that may occur when vitamin D levels are low. But vitamin D status and mental health are a complex issue, and low vitamin D levels are not necessarily a cause of depression or other mood disorders.
The symptoms of depression or other mental health issues are common, and we must take care of ourselves and seek professional help.
What is the reason why Vitamin D levels are so low?
Sunlight is the main source of vitamin D because the skin is exposed to sunlight and vitamin D is produced.
But many factors can lower vitamin D production or availability. Little to no time outdoors, covering most of the skin, and a darker complexion can also cause low vitamin D levels. Vitamin D production in older adults is also less effective because of reduced sunlight exposure.
Health conditions may affect vitamin D absorption or metabolism. This includes coeliac disease and some inflammatory bowel disorders that affect fat absorption. Kidney and liver dysfunction can also interfere with the body’s ability to process vitamin D.
Obesity is also a well-known risk factor as vitamin D can be less available to the circulation if stored in body fat.
What are ways of getting Vitamin D?
Vitamin D is obtained from sunlight, diet, and supplements.
Vitamin D foods include oily fish such as salmon, sardines, and mackerel, egg yolks, liver, and fortified foods. The amount from food can vary greatly depending on the food and whether it has been fortified.
Safe exposure to sunlight can help to produce vitamin D, but deliberately staying in strong sunlight for long periods is not recommended because excessive ultraviolet exposure increases the risk of skin damage and skin cancer.
People at higher risk of deficiency may need supplements, but the dose should be tailored to the individual.
Should you take Vitamin D Supplements When You Are Tired?
Not necessarily.
Constant fatigue has many possible causes, and symptoms alone cannot prove vitamin D is the cause. A healthcare professional needs to decide if testing is appropriate based on symptoms, risk factors, and medical history.
A blood test can assess vitamin D status if it is clinically indicated. Without medical advice, people shouldn’t take very high levels of vitamin D. Excessive supplementation over time can lead to abnormal calcium levels and damage kidneys and heart.
Vitamin D deficiency can be treated effectively when confirmed; however, treatment should be based on the actual level and health needs.
When do you see a doctor?
Persistent fatigue is concerning, especially if it is associated with muscle weakness, bone pain, unexplained weight loss, or other new symptoms.
If tiredness persists despite proper sleep and a healthy diet, a doctor may be able to identify the cause. Depending on the situation, a blood test might be carried out for vitamin deficiencies, anaemia, thyroid problems or other conditions.
Vitamin D deficiency is thus one possible explanation for persistent fatigue, but it cannot simply be taken as a sideshow without proper assessment.
For most people, a balanced diet, good outdoor activity and lifestyle-based care are important for general health. There is always an evaluation of deficiency, and a professional opinion is helpful to determine whether or not there is a need for supplementation.
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