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Vitamin D deficiency - 12 symptoms to be concerned about

Vitamin D deficiency is common among Poles. Experts warn of the consequences of too little of the 'sunshine vitamin'. Unfortunately, there are no typical symptoms indicative of vitamin D deficiency.

Nina Wawryszuk - AuthorAuthorNina Wawryszuk
Nina Wawryszuk - Author
AuthorNina Wawryszuk
Natu.Care Editor

Nina Wawryszuk specialises in sports supplementation, strength training and psychosomatics. On a daily basis, in addition to writing articles for Natu.Care, as a personal trainer she helps athletes improve their performance through training, diet and supplementation.

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Witold Tomaszewski - Reviewed byReviewed byWitold Tomaszewski
Verified by an expert
Witold Tomaszewski - Reviewed by
Reviewed byWitold Tomaszewski
Doctor of Medicine

Doctor of Medicine, food and pharmaceutical law expert and experienced medical professional.

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Agata Jach - Fact-checkingFact-checkingAgata Jach
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Vitamin D deficiency - 12 symptoms to be concerned about
29 April, 2024
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17 min
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Whoever has never diagnosed themselves online, let them cast the first stone! Looking for symptoms, comparing yourself to others and... getting a headache just from reading. Relax. Sit back and let yourself be served a factual pill. 

In this article, you will learn about the possible symptoms of vitamin D deficiency and how to understand the signals sent by your body. Check out the expert opinion of Dr. Witold Tomaszewski, MD.

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Description of contents:

  1. Learn the 12 symptoms of vitamin D deficiency
  2. .
  3. Causes of vitamin D deficiency
  4. .
  5. Effects of vitamin D deficiency
  6. .
  7. Treatment of deficiency - what does the doctor say?
  8. Summary
  9. .

See also:

Good for immunity

Ibuvit D3 2000 + K2 MK-7 + OMEGA 3

Ibuvit D3 2000 + K2 MK-7 + OMEGA 3
4.1
  • Omega-3 content: 250 mg (200 mg DHA + 50 mg EPA)
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Product description

A dietary supplement containing omega-3 fatty acids, vitamin D3 and vitamin K. The formula supports the immune system, the functioning of the mós brain and vision. Moreover, its regular supplementation has a positive effect on teeth, as well as the use of calcium in the body, whichóry supports the musculoskeletal system. A daily portion provides 2000 IU of vitamin D3, which covers the requirement for an adult. Vitamin D3 supplementation is particularly recommendedólly during autumn and winter.

Pros and cons

A dietary supplement containing omega-3 fatty acids, vitamin D3 and vitamin K. The formula supports the immune system, the functioning of the mós brain and vision. Moreover, its regular supplementation has a positive effect on teeth, as well as the use of calcium in the body, whichóry supports the musculoskeletal system. A daily portion provides 2000 IU of vitamin D3, which covers the requirement for an adult. Vitamin D3 supplementation is particularly recommendedólly during autumn and winter.

Additional information

A dietary supplement containing omega-3 fatty acids, vitamin D3 and vitamin K. The formula supports the immune system, the functioning of the mós brain and vision. Moreover, its regular supplementation has a positive effect on teeth, as well as the use of calcium in the body, whichóry supports the musculoskeletal system. A daily portion provides 2000 IU of vitamin D3, which covers the requirement for an adult. Vitamin D3 supplementation is particularly recommendedólly during autumn and winter.

User review

A dietary supplement containing omega-3 fatty acids, vitamin D3 and vitamin K. The formula supports the immune system, the functioning of the mós brain and vision. Moreover, its regular supplementation has a positive effect on teeth, as well as the use of calcium in the body, whichóry supports the musculoskeletal system. A daily portion provides 2000 IU of vitamin D3, which covers the requirement for an adult. Vitamin D3 supplementation is particularly recommendedólly during autumn and winter.

Soft capsule

Pharmovit Vitamin D3 4000 UI

Pharmovit Vitamin D3 4000 UI
4.6
  • Active ingredients: vitamin D3
  • Packaging: 120 capsules
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  • Daily serving: 1 capsule
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Product description

Soft oil capsules with vitamin D3 in the form of cholecalciferol. Vitamin D3, known as „the sunshine vitamin” helps with the normal absorption and utilisation of calcium and phosphorus, as well as maintaining normal blood calcium levels.

Vitamin D3 helps to maintain healthy bones and teethós, the normal functioning of muscles and the immune system. Its supplementation is recommended in Poland, due to a common deficiencyór.

Pros and cons

Soft oil capsules with vitamin D3 in the form of cholecalciferol. Vitamin D3, known as „the sunshine vitamin” helps with the normal absorption and utilisation of calcium and phosphorus, as well as maintaining normal blood calcium levels.

Vitamin D3 helps to maintain healthy bones and teethós, the normal functioning of muscles and the immune system. Its supplementation is recommended in Poland, due to a common deficiencyór.

Additional information

Soft oil capsules with vitamin D3 in the form of cholecalciferol. Vitamin D3, known as „the sunshine vitamin” helps with the normal absorption and utilisation of calcium and phosphorus, as well as maintaining normal blood calcium levels.

Vitamin D3 helps to maintain healthy bones and teethós, the normal functioning of muscles and the immune system. Its supplementation is recommended in Poland, due to a common deficiencyór.

Pure composition

Primabiotic Vitamin D3+K2Mk7

Primabiotic Vitamin D3+K2Mk7
5.0
  • Content vitamin D32000 IU
  • Additional active ingredients: vitamin K
  • Form: drops
  • Dose: 5 drops daily
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Product description

Primabiotic Vitamin D3+K2 is an effective combination of two valuable vitamins. These compounds support each other's action, so that your body derives greater benefits from them. Supplemented regularly, this formula from Primabiotic can reduce the risk of bone fractures, support immune system function and take care of calcium metabolism.

Pros and cons

Primabiotic Vitamin D3+K2 is an effective combination of two valuable vitamins. These compounds support each other's action, so that your body derives greater benefits from them. Supplemented regularly, this formula from Primabiotic can reduce the risk of bone fractures, support immune system function and take care of calcium metabolism.

Additional information

Primabiotic Vitamin D3+K2 is an effective combination of two valuable vitamins. These compounds support each other's action, so that your body derives greater benefits from them. Supplemented regularly, this formula from Primabiotic can reduce the risk of bone fractures, support immune system function and take care of calcium metabolism.

Tasteless

Dr. Jacob's Vitamin D3 drops

Dr. Jacob's Vitamin D3 drops
4.8
  • Content vitamin D3800/1600 IU
  • Form: drops
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  • Dose: 1 or 2 drops daily
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  • Sufficient for: 320–640 drops
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Product description

Sunshine Vitamin D3 FORTE is a dietary supplement containing a high dose of vitamin D3. Each drop of the product provides 800 IU of this essential vitamin for the proper functioning of the organism, whichóra supports the proper absorption of calcium and the maintenance of healthy bones, teethóra and muscles.

Pros and cons

Sunshine Vitamin D3 FORTE is a dietary supplement containing a high dose of vitamin D3. Each drop of the product provides 800 IU of this essential vitamin for the proper functioning of the organism, whichóra supports the proper absorption of calcium and the maintenance of healthy bones, teethóra and muscles.

Additional information

Sunshine Vitamin D3 FORTE is a dietary supplement containing a high dose of vitamin D3. Each drop of the product provides 800 IU of this essential vitamin for the proper functioning of the organism, whichóra supports the proper absorption of calcium and the maintenance of healthy bones, teethóra and muscles.

Very high dose

OstroVit Vitamin D 4000 IU

OstroVit Vitamin D 4000 IU
4.8
  • Content vitamin D34000 IU
  • Form: capsules
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  • Dose: 1 capsule per day
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  • Sufficient for: 120 days
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See price
in the Natu.Care shop
Product description

OstroVit Vitamin D 4000 IU is a dietary supplement in the form of soft capsules, specially designed for peopleóing vitamin D deficiency, and especially recommended for seniorsów. 

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Contains 4,000 IU of vitamin D per capsule, enabling effective dietary supplementation. The olive oil contained in the formula enhances the absorption of vitamin D, further enriching the supplement with healthy fats. 

The supplement contains a wide range of vitamins and minerals.

The pack contains 120 capsules, allowing for four months of supplementation when taken with one capsule per day.

Pros and cons

OstroVit Vitamin D 4000 IU is a dietary supplement in the form of soft capsules, specially designed for peopleóing vitamin D deficiency, and especially recommended for seniorsów. 

.

Contains 4,000 IU of vitamin D per capsule, enabling effective dietary supplementation. The olive oil contained in the formula enhances the absorption of vitamin D, further enriching the supplement with healthy fats. 

The supplement contains a wide range of vitamins and minerals.

The pack contains 120 capsules, allowing for four months of supplementation when taken with one capsule per day.

Additional information

OstroVit Vitamin D 4000 IU is a dietary supplement in the form of soft capsules, specially designed for peopleóing vitamin D deficiency, and especially recommended for seniorsów. 

.

Contains 4,000 IU of vitamin D per capsule, enabling effective dietary supplementation. The olive oil contained in the formula enhances the absorption of vitamin D, further enriching the supplement with healthy fats. 

The supplement contains a wide range of vitamins and minerals.

The pack contains 120 capsules, allowing for four months of supplementation when taken with one capsule per day.

Pure composition

Aura Herbals Vitamin D3 2000 IU

Aura Herbals Vitamin D3 2000 IU
5.0
  • Content vitamin D32000 IU
  • Form: capsules
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  • Dose: 1 capsule per day
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  • Sufficient for: 90 days
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in the Natu.Care shop
Product description

A good dose of vitamin D3 from natural and certified sourcesóde. Just one capsule a day will provide you with a dose of the vitamin, essential for the proper functioning of the immuneós and skeletal systems.

Pros and cons

A good dose of vitamin D3 from natural and certified sourcesóde. Just one capsule a day will provide you with a dose of the vitamin, essential for the proper functioning of the immuneós and skeletal systems.

Additional information

A good dose of vitamin D3 from natural and certified sourcesóde. Just one capsule a day will provide you with a dose of the vitamin, essential for the proper functioning of the immuneós and skeletal systems.

Best for the youngest

Primabiotic Vitamin D3 Kids

Primabiotic Vitamin D3 Kids
4.9
  • Content vitamin D3400 IU
  • Form: drops
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  • Dose: 2 drops daily
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Product description

Vitamin D3 Kids is a formula from Primabiotic created with the youngest children in mind. The supplement supports bone health, supports the absorption of calcium and phosphorus, and has a positive effect on the immune system.

Pros and cons

Vitamin D3 Kids is a formula from Primabiotic created with the youngest children in mind. The supplement supports bone health, supports the absorption of calcium and phosphorus, and has a positive effect on the immune system.

Additional information

Vitamin D3 Kids is a formula from Primabiotic created with the youngest children in mind. The supplement supports bone health, supports the absorption of calcium and phosphorus, and has a positive effect on the immune system.

Restores balance

Sundose° Daily Balance°

Sundose° Daily Balance°
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Stress, exhaustion and tension? Daily Balance° restores calmóness and mental clarity even in the face of the greatest challenges. It is a formula that draws on the synergistic effects of ashwagandha and magnesium, further enhanced with a complex of B vitamins, for reduced feelings of fatigue and tiredness.

The omega-3 fatty acids in the Daily Balance° formula are derived from high-quality fish oil. The healthy fats contribute to the proper functioning of the nervous system, cardiovascular system, immune system, skinóry condition and support mental health.

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Stress, exhaustion and tension? Daily Balance° restores calmóness and mental clarity even in the face of the greatest challenges. It is a formula that draws on the synergistic effects of ashwagandha and magnesium, further enhanced with a complex of B vitamins, for reduced feelings of fatigue and tiredness.

The omega-3 fatty acids in the Daily Balance° formula are derived from high-quality fish oil. The healthy fats contribute to the proper functioning of the nervous system, cardiovascular system, immune system, skinóry condition and support mental health.

Additional information

Stress, exhaustion and tension? Daily Balance° restores calmóness and mental clarity even in the face of the greatest challenges. It is a formula that draws on the synergistic effects of ashwagandha and magnesium, further enhanced with a complex of B vitamins, for reduced feelings of fatigue and tiredness.

The omega-3 fatty acids in the Daily Balance° formula are derived from high-quality fish oil. The healthy fats contribute to the proper functioning of the nervous system, cardiovascular system, immune system, skinóry condition and support mental health.

User review

Stress, exhaustion and tension? Daily Balance° restores calmóness and mental clarity even in the face of the greatest challenges. It is a formula that draws on the synergistic effects of ashwagandha and magnesium, further enhanced with a complex of B vitamins, for reduced feelings of fatigue and tiredness.

The omega-3 fatty acids in the Daily Balance° formula are derived from high-quality fish oil. The healthy fats contribute to the proper functioning of the nervous system, cardiovascular system, immune system, skinóry condition and support mental health.

Learn the 12 symptoms of vitamin D deficiency

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There are no typical, characteristic symptoms of vitamin D deficiency. The following symptoms may also suggest other conditions. If you suspect a vitamin D deficiency - have your blood vitamin D3 levels tested. This is the surest action you can take to diagnose a deficiency.
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dr. n..

Dr. n. med. Witold Tomaszewski

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Symptoms of vitamin D deficiency:

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  • fatigue, weakness,

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  • pain and weakness in muscles, joints,

  • .
  • solidification (osteoporosis) and softening (osteomalacia) of the bones,

  • .
  • periodontal disease,

  • bone disease.
  • immune disorders (frequent infections),

  • disorders of the immune system.

  • neurological manifestations,

  • immune disorders (frequent infections),

  • .
  • hair loss,

  • sleep disorders,

  • hair loss,

  • hair loss.
  • skin disorders,

  • dermatological problems,

  • .
  • overweight,

  • .
  • mental symptoms,

  • impaired wound healing,

  • Sunny Mood is a vegan vitamin D3 drops. Thoroughly tested, convenient to supplement and highly bioavailable.

    Fatigue, weakness

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    The rush of life makes it hard to balance family matters, work and time for pleasure. We may experience  fatigue and weakness as a resultand. However, prolonged discomfort should worry us. This may suggest a vitamin D deficiency. Pay attention to recovery and the quality of your diet. Are you getting enough rest? Are you eating well?

    .

    Muscle pain and weakness, joints

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    Vitamin D deficiency  can manifest as  muscle pain, recovery problems after exercise, loss of muscle mass and muscle tremorsand. Are you experiencing these discomforts? If you are training hard and allowing yourself time to recover, yet the symptoms persist - it's time to visit your doctor and look for the cause.

    Association (osteoporosis) and softening (osteomalacia) of the bones

    .

    Vitamin D plays an important role in calcium absorption and bone metabolism. Adequate levels of vitamin D protect our bone mass and reduce the risk of fractures.  Deficiency  can manifest as increased bone fragility and softening (osteomalacia)and.

    .
    It used to be checked for vitamin D deficiency in infants with the so-called ping-pong ball sign. If the baby's skull when pressed with the fingers was flexible, like a table tennis ball, this was a signal of vitamin D deficiency.
    .
    dr. n..

    Dr. n. med. Witold Tomaszewski

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    Periodontal diseases

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    Vitamin D deficiency promotes  oral disease  and is associated with a higher risk of dental malformations, caries, periodontitis and lower oral disease treatmentand. When was the last time you visited the dentist? Perhaps your pain or discomfort is linked to a vitamin D deficiency. It's worth getting it checked! Make an appointment with your dentist today.

    Immune disorders (frequent infections)

    .

    You catch infection after infection, you feel that you cannot fully recover - this could mean that your immune system is not working properly. There is an undeniable link between vitamin D levels and  the immune systemand. Its deficiency or lack can have the effect of lowering immunity, resulting in more frequent infections.

    Hair loss

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    This  symptom  is very easily confused with other ailments - hair falls out due to deficiencies of many other vitamins and micronutrients, excessive stress or thyroid problemsand. If you have noticed that your hairstyle is thinning, your hair is dull or you are finding more hair on your brush than usual, pay attention to your diet and relaxation. It is a good idea to determine the concentration of vitamins (including D) and trace elements in your body.

    Sleep disorders

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    Sleep disorders associated with vitamin D deficiencyand  include: shortened sleep length, reduced sleep quality, problems falling asleep, insomnia. If you are trying to take care of your sleep hygiene and still experiencing nighttime sleep problems, this could be a signal from your body that you are lacking vitamin D.

    Dermal problems

    .

    Scientists are looking at the relationship between serum vitamin D levels and  skin conditionand. How do you assess the condition of your skin? Dry, irritated, flaky, itchy, tight skin may suggest a vitamin D deficiency. Look out for this, especially in winter - it's easy to explain dry or tight skin when the heating is on and the air is dry.

    Overweight

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    This is a symptom, but also one of the causes of sunshine vitamin deficiency. Vitamin D deficiency is more common in  overweight peopleand. The vitamin is stored in adipose tissue, so overweight people may have a higher daily vitamin D requirement. Is your weight correct? With your health and wellbeing in mind, maintain the recommended weight.

    Psychiatric symptoms

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    Researchand  scientific studies suggest that many people suffering from depression are also found to have low serum vitamin D levels. It is therefore possible that these two factors are linked. If you are experiencing  anxiety and fears, feeling depressed and sad, this could be related to  vitamin D deficiencyand. It is also a signal that you need help from a specialist psychiatrist or psychotherapist. 

    Are you troubled by your emotions or worried about the poor mental state of a loved one? You can seek help from the Crisis Helpline  on 116 123. This is a free helpline and can be the first step to regaining your mental balance. Also check where your nearest psychiatrist or psychotherapist is accepted under NFZ at this link.

    Disordered wound healing

    .

    Vitamin D increases the production of compounds that are key to the formation of new skin in the  wound healing processand. If your skin is taking longer than usual to heal after surgery or injury, recognise this as a wake-up call from your body. In  one study   showed that people with severe vitamin D deficiency were more likely to have higher levels of inflammatory markers that can interfere with the wound healing process.

    Decreased body performance

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    Researchand  suggests an important role for vitamin D in the formation of muscle mass, cardiovascular and respiratory fitness, and effects on inflammation, all of which affect our sports performance. Are you tiring faster than you used to? Is your fitness below your capabilities? Pay attention to your diet and recovery. If this aspect is neglected, you may be deficient in vitamins (including D) and micronutrients.

    If you have noticed that some of the symptoms concern you or a loved one, do not delay! It's time for a blood test. If you want to have a full understanding of your health status - in addition to a vitamin D determination, get a baseline blood count, fasting glucose and lipid profile.

    If you want to have a full understanding of your health status - in addition to a vitamin D determination, get a baseline blood count, fasting glucose and lipid profile.

    Neurological symptoms

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    Neurological symptoms of vitamin D deficiency include:

    • prolonged fatigue,
      • prolonged sleep problems
      • sleeping problems,
      • .
      • problems with memory, concentration, learning,
      • .
      • headaches, migraines,
      • .
      • bad mood, sadness and lack of motivation,
      • .
      • depressive feelings (depression),
      • .

      Specialists have been looking at the effects of vitamin D deficiency on the nervous system for years. Studies suggest that vitamin D deficiency can impair  various brain functionsand. Insufficient vitamin D levels can be linked to dizziness, memory problems, concentration and motor coordination.

      Maybe of interest to you:

      Deficiency in children: are the symptoms different?

      .

      Vitamin D deficiency is common in children of all ages across  the worldand. Children up to 2 years of age are particularly vulnerable to deficiency, mainly through inadequate sun exposure and breastfeeding them without additional vitamin D supplementation. During the intensive growth phase, a child can develop abnormally if it lacks vitamin D, among other things. 

      What to look out for in childand?

      5 symptoms characteristic of children:

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      • Muscle aches awakening the child from sleep.

        Muscle aches and pains.

      • Muscle weakness.

      • Muscle weakness.
      • Delayed growth, valgus and scoliosis of the knee, rickets.

      • Delayed growth, valgus and scoliosis of the knee, rickets.

      • Delay in walking ability.

      • Delay in walking ability.
      • Disorders of calcium-phosphate metabolism: tetany, cardiomyopathy, seizures.

      • Disorders of calcium-phosphate metabolism: tetany, cardiomyopathy, seizures.

      .
      Prevention is better than cure. From the first days of your child's life, establish with your doctor what his or her correct diet should consist of. In the case of vitamin D, make sure that its supply complies with the RWS (Reference Intake Values) and does not exceed the recommended daily allowance. Why? Vitamin D is also found in many products intended for children (so-called fortified foods - milks, supplements, 'soups', snacks).
      .
      dr. n. hab..

      Dr. n. med. Witold Tomaszewski

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      .

      Cause

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      Our body can produce vitamin D by dermal synthesis. This is a natural chemical reaction, created by the penetration of ultraviolet rays into the deeper layers of the epidermis. Despite this, many people have insufficient  concentrations of  vitamin Dand.

      Vitamin D deficiency - risk groups

      .
      • Inhabitants  of geographic regions where sunlight is limited, especially in winter .

      • Persons using   sunscreen .

      • Persons with  limited exposure  to the sun (office work, shift work, nursing home patients) .

      • Persons with darker skin , as the pigment has a protective effect on the skin by reducing vitamin D3 production.

      • Persons on vegan diets and with milk and egg intolerance .

      • Newborns, because with each month their diet becomes poorer in vitamin D-enriched products (porridge, modified milk) and due to intensive growth .

      • .
      • Persons  over 65 years of age, as the skin's ability to produce vitamin D decreases with age .

      • Smokers .

      • Persons taking  drugs  that affect vitamin D absorption, e.g.: glucocorticosteroids, antifungals, cholesterol-lowering drugs, antiepileptic drugs .

      • Persons diagnosed with  

        .
        • Disorders of  digestion and absorption, chronic inflammatory bowel diseaseand,

        • chronic disease  kidney disease   or  liver disease 

        • hypothyroidism  or hypothyroidism - including Hashimoto's disease 

        • asthma  bronchiectasis 

        • atopic dermatitis 

        • hypertension  arterial 

        • ischemic  heart disease  

        • diabetes ,

        • overweight or obesity .

      If, when reading the above list, you thought to yourself "that's about me" or "that's about my loved one". - think about having your vitamin D levels determined!

      Effects

      .

      The effects of deficiency are a worsening of the symptoms you have read about above. Untreated vitamin D deficiency can lead to:

      • osteoporosis  (loss of bone mass)and

      • osteomalacia  (reduced bone mineralisation) ,

      • disorders of calcium and phosphate metabolism ,

      • development of rickets in children ,

      • .
      • diseases of the mouth ,

      • recurrent hyperparathyroidism ,

      • development of autoimmune diseases ,

      • .
      • decrease in muscle strength ,

      • .
      • deterioration of mental disorders ,

      • skin disorders .

      Treatment of deficiency - what does the doctor say?

      .

      Are you experiencing the above symptoms? One, or perhaps several? Not sure if vitamin D deficiency affects you? Find out what our expert advises!

      .
      There are no typical, characteristic symptoms of vitamin D deficiency. To diagnose a deficiency of this vitamin in the body, we should determine the serum vitamin D concentration. This is the basis for appropriate treatment. 
      .
      .
      In special cases, extended investigations may also be performed, including assessment of calcium-phosphate metabolism (serum calcium and phosphorus concentrations and daily urine collections) and parathormone concentrations. 
      .
      .
      Referral for a serum vitamin D test can be made by a specialist doctor or we can do it privately.
      .
      .
      .
      Treatment consists of choosing an individual vitamin D dose and then sensible supplementation. I also recommend that they change their eating habits and encourage patients to be physically active outdoors.
      .
      dr. n.d..

      Dr. n. med. Witold Tomaszewski

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      .

      Considering vitamin D supplementation? Be sure to read the article written with an expert about vitamin D3 drops. Once you have chosen your supplement, check recommended dosage.

      .

      A good vitamin D supplement? Sunny Mood is a vegan vitamin D3 drop. Highly bioavailable and convenient for supplementation.

      See also:

      Summary

      .

      You already know how to understand some of the worrying signals your body sends you. You don't need to read for the hundredth time about the symptoms of vitamin D deficiency, because you already know that the best diagnosis will be made by your blood test results.

      Before I could get to the darkest scenarios on the internet, I checked my vitamin D concentration in my blood. I saved a lot of nerves! And have you had this test done? Let me know in the comments if there are more of us!

      .

      FAQ

      .
      . What causes vitamin D deficiency?.

      Chronic vitamin D deficiency can have serious consequences for your health. Here are the most important ones:

      • weakening of the immune system - vitamin D helps to fight infections;
      • .
      • osteoporosis - vitamin D helps absorb calcium, which is crucial for bone health;
      • .
      • cardiovascular disease - lack of vitamin D can lead to increased blood pressure and lipid disorders;
      • .
      • mood disorders and depression - vitamin D is important for mental health and a deficiency may increase the risk of depression;
      • .
      • autoimmune diseases - it may increase the risk of diseases such as Hashimoto's, lupus erythematosus and type 1 diabetes;
      • .
      . What are the causes of vitamin D deficiency?.

      The most important causes of vitamin D deficiency are:

      .
      • insufficient sun exposure - it is produced in the skin as a response to UVB radiation and when you spend too little time in the sun, you are not providing enough of the right stimulus;
      • .
      • deficiencies in your diet - reach for eggs, cheese and oily fish, among others, more often;
      • .
      • age - older people have less capacity to produce vitamin D and absorb it from food;
      • .
      • absorption problems - these can be caused by conditions such as Crohn's disease, coeliac disease or pancreatic insufficiency;
      • .
      • dark complexion - melanin reduces the skin's ability to produce vitamin D;
      • .
      • overweight and obesity - vitamin D stored in adipose tissue is less available to other tissues;
      • .
      . What are the symptoms of vitamin D deficiency?.

      Vitamin D deficiency is manifested by:

      .
      • weakness and muscle aches;
      • .
      • fatigue and apathy;
      • .
      • weakened immunity;
      • .
      • weakness and increased brittleness of bones;
      • .
      • dental problems;
      • .
      • hormonal disorders;
      • .
      . How to quickly correct a vitamin D deficiency and how long does it take to treat it?.

      The best way to replenish vitamin D is through regular skin exposure to the sun, a balanced diet and responsible supplementation.

      Before starting actual treatment, blood tests should be carried out to determine the degree of deficiency and select an appropriate dose.

      Polish principles of treatment and vitamin D supplementation suggest that therapeutic doses should be used for 1-3 months to achieve optimal levels of 30-50 ng/ml.

      See also: The three most important sources of vitamin D.

      . How much does it cost to test vitamin D levels?

      The price of a vitamin D determination depends on the specific laboratory and ranges from £75 to as much as £100. It is a blood test, needed to determine the level of deficiency and select the best dose of vitamin D for supplementation. You do not need to be fasting for the test, you can take it at any time, and you will wait 1 working day for the results.

      When to take vitamin D - in the morning or in the evening?

      .

      There is no strict time of day to take vitamin D, although morning hours may be more convenient and better. Vitamin D, may affect melatonin production and make it more difficult to fall asleep, but there is currently no conclusive research on this. The best option is to find a time that is most convenient for you - you can allow yourself to experiment in a healthy way. Most importantly, consume it with a meal to facilitate the absorption of vitamin D, which is fat-soluble.

      . Does vitamin D calm you down?.

      Research shows that low levels of vitamin D can increase symptoms of anxiety, fear, depression and stress. This is also linked to the fact that vitamin D and omega-3 acids regulate the production of serotonin, a neurotransmitter that affects our emotions, mood, concentration and memory, among other things.

      .

      Sources

      . See all.

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