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How Long Does It Take to Recover from Vitamin D Deficiency?

July 31, 2025 | Post by: Dr. Aashish Chaudhry

The answer depends on the severity of the deficiency. Usually, it takes around 1 to 2 months of supplementation to recover from vitamin D deficiency. Besides supplements, there are many other ways to speed up recovery. Here’s what experts have to say about this.

What Is Vitamin D and Why Is It Important?

Vitamin D is a fat-soluble nutrient that helps in the growth and development of bones and teeth. This vitamin helps your body to absorb and use calcium, magnesium, and phosphate. It also has a role in strengthening our immune system. 

Some studies also suggest that vitamin D can help alleviate symptoms related to depression and anxiety and protect us against cancer, heart disease, stroke, multiple sclerosis, and type 2 diabetes. 

Usually, our body produces this vitamin naturally when we are exposed to sunlight. Some supplements also aid in vitamin D production. 

But shockingly, one in five Indians has low vitamin D levels. You may be thinking how it is possible in a country with abundant sunlight. But understand, many factors are contributing to this silent epidemic:

  1. A strict vegetarian and lactose-intolerant diet that lacks vitamin D
  2. Not getting enough sunlight exposure
  3. Having dark skin
  4. Having a kidney or liver issue
  5. Taking certain medicines
  6. Having excess body weight (obesity)
  7. Having an indoor lifestyle  
  8. Urbanisation and pollution
  9. Cultural and social practices
  10. Older age 

Having a vitamin D deficiency can directly weaken your bones, which can raise the risk of rickets (in children), osteoporosis (in adults), and fractures (in both children and adults).

Healthy Levels of Vitamin D

Vitamin D level is checked through a simple blood test. If the result comes around 20 nanograms of vitamin D per litre of blood, it is considered healthy. If the result is significantly high (50+) or low (12), you should take appropriate actions.

What Are the Symptoms of Vitamin D Deficiency?

Symptoms of vitamin D deficiency are usually more pronounced in children than in adults, as their bones are still developing. 

Symptoms in children:

  1. Weak, sore, and painful muscles
  2. Bowed or bent bones
  3. Muscle weakness
  4. Bone pain 
  5. Joint deformities

Symptoms in adults:

  1. Fatigue 
  2. Pain in bones and joints 
  3. Bone loss
  4. Weaknesses, aches, or cramps in muscles
  5. Mode changes

Recovery from Vitamin D Deficiency 

The following are various ways you can recover from vitamin D deficiency or prevent this problem. 

Sun Exposure

Stay out in the sun without covering your face, arms, and legs for 5 to 30 minutes. If you are a working professional, try to walk outside of your office for a few minutes during lunchtime. A UV lamp can also be used after discussion with your doctor. 

Diet

If you are non-vegetarian, include fatty fish (salmon and tuna), eggs, and cod liver oil. Vegetarians can go with fortified foods and dairy products.  

Supplements

If you are not getting enough vitamin D from sun exposure and diet, you may need to take supplements. People aged less than 65 years should take 600-800 IU of vitamin D3 each day. Those above 65 years should take 800-1000 IU daily. But always discuss with your doctor before taking any supplement.

If you or anyone you know is vitamin D deficient, consult an orthopaedician for a personalised treatment regimen. With a proper plan, you can expect recovery from vitamin D deficiency within 4 to 8 weeks.