February 5

Vitamin D Supplements: Uses, Benefits, and Side Effects

By Fitness Blog

February 5, 2022

Vitamin D Supplements: Uses, Benefits, and Side Effects HealthifyMe Blog HealthifyMe Blog – The definitive guide to weight loss, fitness and living a healthier life.

Vitamin D, most popularly referred to as “the sunshine vitamin”, is a necessary vitamin for the physique. It helps in regulating the absorption of phosphorus and calcium. In addition, it performs a crucial position in stopping irritation within the physique. However, you'll be able to perceive vitamin D as extra of a hormone than a vitamin. It is as a result of potential of our our bodies to provide vitamin D from ldl cholesterol. However, this course of requires a touch of daylight day by day. Therefore, spending a while day by day within the solar will help us meet our each day vitamin D necessities. However, vitamin D deficiency is a big well being concern globally and folks go for consuming Vitamin D Supplements.

It is so frequent that a big a part of the inhabitants requires dietary supplements to satisfy their each day vitamin D necessities. As per research, over a million individuals worldwide have decrease vitamin D ranges, whereas 50% of the inhabitants suffers from vitamin D insufficiency. Vitamin D is current in very low concentrations in our meals. Therefore, it isn't adequate to satisfy our each day wants. That is why most individuals require vitamin D dietary supplements to satisfy their necessities.

Vitamin D maintains and restores the physique's dietary ranges and retains it wholesome. However, individuals who don't get sufficient solar publicity require vitamin D dietary supplements. So, if you're questioning whether or not you want vitamin D dietary supplements, this text will make it easier to achieve some ( higher) readability.

What is Vitamin D?

Vitamin D is a fat-soluble vitamin. Therefore, the physique wants an applicable quantity of wholesome fat to soak up this vitamin. Our physique wants it to keep up the bones' well being and soak up calcium and phosphorus from the small gut.

As per research, individuals with vitamin D deficiency can develop brittle, mushy, and weak bones. Moreover, the shortage of this vitamin can also be chargeable for the event of rickets in kids and osteomalacia in adults. 

Types of Vitamin D

There are 5 types of vitamin D: D1, D2, D3, D4, and D5. However, Vitamin D2 and D3 are an important types of vitamin D for the human physique.

Vitamin D2 (Ergocalciferol)

Vitamin D2 comes from plant-based meals reminiscent of mushrooms that obtain adequate daylight. These meals are the richest vitamin D sources for vegetarians.

Vitamin D3 (Cholecalciferol)

Vitamin D3 is current in meals sources like fish. Our pores and skin additionally produces vitamin D3 from ldl cholesterol current in our physique within the presence of daylight. 

Both nutritional vitamins are obligatory for the right functioning of our physique. Supplements of each kinds of Vitamin D, i.e. Vitamin D2 and Vitamin D3, can be found over-the-counter, and you should buy them and not using a prescription. A meta-analysis means that vitamin D3 is the extremely most popular alternative for Vitamin D dietary supplements. Comparatively, it's a extra simply absorbable type. However, vegetarians nonetheless favor vitamin D2 over D3.

Vitamin D Requirements

The normal unit of measurement for vitamin D consumption is International Units (IU) or micrograms (mcg). 40 IU of vitamin D is equal to 1mcg. Our our bodies require vitamin D day by day. As per research, the typical necessities of vitamin D consumption are:

  • Infants: Birth to 12 months: 10 mcg or 400 IU
  • Children and Teens: 1-18 years: 15 mcg or 600 IU
  • Adults: 19-70 years: 15 mcg or 600 IU
  • Adults: Older than 71 years: 20 mcg or 800 IU
  • Pregnant or Breastfeeding girls: 15 mcg or 600 IU

Vitamin D: Functions

When the ldl cholesterol current in our physique converts to vitamin D, it helps in numerous capabilities:

  • Vitamin D prevents temper issues reminiscent of temper swings and melancholy.
  • It reduces the danger of bone fractures and deformations by regulating calcium and phosphorus ranges in our our bodies.
  • Vitamin D regulates blood sugar ranges within the physique.
  • It additionally maintains wholesome ranges of ldl cholesterol.
  • It regulates muscle and nerve capabilities.

Vitamin D Supplements

You can primarily acquire vitamin D via three sources: your pores and skin, food plan, and vitamin D dietary supplements. Since most of us don't get sufficient vitamin D from pure sources, dietary supplements are important. Daily consumption of those dietary supplements is more practical than month-to-month or weekly administration. These dietary supplements are a dependable and efficient approach to make sure the right functioning of our physique by assembly its vitamin D necessities.

Signs that You Need Vitamin D Supplements

You would possibly want vitamin D dietary supplements when recognized with vitamin D deficiency. However, it's higher to seek the advice of a doctor and check your blood sugar ranges earlier than choosing any dietary supplements. The want for it might come up if you expertise the next signs often:

  • Feeling sleepy or drained
  • Back ache and joint ache
  • Hair loss
  • Mood issues
  • Headaches

Benefits and Uses of Vitamin D Supplements

Vitamin D dietary supplements play a necessary position in our physique capabilities. They assist in the right functioning of the cells, nerves, and muscle groups. The makes use of and advantages of vitamin D dietary supplements are as follows:

Strengthens Bones and Muscles

According to research, vitamin D helps regulate calcium ranges. It performs a necessary position in strengthening the bones and muscle groups in our physique. Vitamin D additionally absorbs calcium and phosphorus within the small gut. One of the vitamin D dietary supplements, i.e. calcitriol, will increase calcium blood ranges in individuals with low parathyroid hormone ranges.

Promotes Healthy Pregnancies

As per research, vitamin D deficiency in pregnant girls typically results in preeclampsia and preterm delivery. That might result in many problems. On the opposite hand, vitamin D dietary supplements throughout being pregnant enhance the vitamin D standing in girls and enhance the well being standing of the mom and the toddler.

Supports the Growth of Infants

According to a study, vitamin D helps construct robust tooth and bones in infants. Furthermore, vitamin D dietary supplements additionally assist stop rickets in kids.

Promotes Mental Health

Studies recommend that low vitamin D ranges in our physique can result in numerous temper issues and melancholy. Therefore, an optimum vitamin D degree via vitamin D dietary supplements can enhance psychological well being and regulate your temper.

Enhances Immunity

Vitamin D receptors are current on the floor of the white blood cells in our physique. As per a study, it helps improve immunity by preventing dangerous viruses and micro organism. Therefore, vitamin D dietary supplements are recognized to spice up the immunity of a person.

Lowers the Risk of Diabetes

Research exhibits that Vitamin D helps regulate insulin ranges. High insulin ranges within the physique might trigger diabetes. Also, vitamin D dietary supplements preserve a stability in glucose ranges within the physique. As a end result, they assist decrease the danger of diabetes.


These are some precautions that you must observe whereas taking Vitamin D dietary supplements:

  • It is healthier to maintain 2 hours between consuming medicines for different well being situations and vitamin D dietary supplements. It helps to keep away from unfavorable interactions between medication within the physique.
  • Avoid alcohol whereas consuming vitamin D dietary supplements because it reduces its effectivity.
  • The per-day dosage of vitamin D shouldn't exceed greater than 4000 IU.
  • It is preferable to take vitamin D dietary supplements together with meals reasonably than an empty abdomen.
  • If an individual is above the age of fifty or suffers from osteoporosis, their each day dosage of vitamin D dietary supplements needs to be between 800 IU to 1000 IU.

Possible Side Effects

Vitamin D dietary supplements are typically secure to devour when taken in advisable quantities. However, when you take them in larger portions for a extra prolonged interval, these dietary supplements might trigger sure unintended effects as a result of vitamin D toxicity.


Hypercalcemia refers to a situation that develops due to extra calcium within the blood. It happens as a result of extra vitamin D consumption. 

Vitamin D helps within the absorption of calcium from the physique. However, when the calcium ranges exceed a threshold worth, it's possible you'll expertise hypercalcemia. The threshold worth is 0.104 mg/mL or 10.4 mg of calcium per deciliter of blood.

High calcium ranges within the physique can also trigger a lack of urge for food, muscle weak point, diminished reflexes, muscle and joint ache. It can also result in points like confusion, disorientation, bother pondering, irritability, anxiousness and many others.

Kidney Damage

The calcium within the blood can bind with phosphate to type crystals that deposit within the tissues. These tissues could cause harm to the organs. For instance, extreme vitamin D consumption may end up in calcium deposits within the kidney. When calcium deposits accumulate within the tissues of the kidney, they'll trigger nephrocalcinosis. It is a dysfunction that may result in kidney failure. 

Heart Issues

Extreme hypercalcemia as a result of extra vitamin D can hamper the right functioning of the cells current within the coronary heart. As a end result, it causes irregular heartbeat, resulting in blockage and coronary heart assault.

Lung Damage

High vitamin D ranges could cause calcium and phosphate deposition within the tissues. These deposits of calcium and phosphate can impair lung functioning. It may end up in chest ache, bother respiratory, and chronic coughing. Hence, a excessive dosage of vitamin D dietary supplements can result in important lung harm.

Effect on Mental Health

Hypercalcemia can alter the psychological standing of an individual. The major explanation for hypercalcemia is extra vitamin D consumption. Therefore, a excessive consumption of vitamin D dietary supplements can result in extreme adjustments in temper and may trigger melancholy.

Brittle Bones and Pain

With extreme calcium within the physique, the bones' minerals don't successfully bind with the hormones current. As a end result, it will probably result in aching bones, extreme joint ache, and a stooped posture. The greatest solution to keep away from the unintended effects is to restrict vitamin D dietary supplements.

Sunlight: The Natural Source of Vitamin D

Vitamin D is known as the sunshine vitamin for a purpose. When uncovered to daylight, your pores and skin can produce vitamin D with the assistance of the ldl cholesterol within the physique. Morning between 9:30 am – 10:30 am and night between 4:30 pm to six:30 pm is the very best time to get daylight because the solar is at its highest level. Therefore, the physique can effectively synthesise vitamin D throughout noon. 

Melanin determines your pores and skin color. Dark-skinned individuals often have extra melanin than light-skinned ones. Your pores and skin color additionally impacts your vitamin D manufacturing. For instance, darkish pores and skin produces much less vitamin D than gentle pores and skin. It is as a result of the surplus melanin in darkish pores and skin blocks vitamin D absorption from the daylight. Therefore, dark-skinned individuals have to spend extra time within the daylight than light-skinned individuals to get the identical vitamin D.

People with darkish pores and skin and people who dwell in chilly areas don't get sufficient publicity to the solar. Thus they depend on vitamin D meals and dietary supplements to fulfil their vitamin D wants.

Foods Rich in Vitamin D

Prolonged publicity to the solar could cause sunburns and enhance the danger of pores and skin most cancers. Therefore, you cannot meet your wants via the daylight alone. Although meals accounts for simply 10% of the full vitamin D current in our physique, we will get some vitamin D via meals. We can get the remaining from daylight and dietary supplements.

Both vegetarian and non-vegetarian meals comprise vitamin D. 

Vegetarian Food Sources

Vegetarians can go for the next meals sources to fulfil part of the vitamin D necessities of the physique.


Mushrooms are the one vegetable with excessive quantities of Vitamin D. It is as a result of excessive daylight publicity. One hundred grams of mushrooms comprise 1136 IU of Vitamin D.

Fortified Orange Juice

Oranges are wealthy in antioxidants and assist our our bodies combat off infections. It additionally prevents harm to our cells. In addition, oranges are extraordinarily wealthy in vitamin D. A glass of fortified orange juice has as much as 137 IU of vitamin D.

Fortified Yoghurt

You can stand up to 10 to twenty% of the required vitamin D via fortified yoghurt. It gives 80-120 IU of vitamin D. Yoghurt can also be helpful for intestine well being.


Cheese accommodates excessive protein, nutritional vitamins, phosphorus, fats, and calcium content material. 100 grams of cheddar cheese comprise as much as 24 IU of vitamin D, swiss cheese contains 20 IU of Vitamin D, and feta accommodates 16 IU. It is an efficient supply of vitamin D and can also be scrumptious.

Cow milk

Cow milk can also be a wealthy supply of vitamin D. A glass of milk has as much as 100 IU of vitamin D.

Non-Vegetarian Food Sources

Along with vitamin D dietary supplements, non-vegetarian individuals also can go for the next vitamin D-rich meals to control their dietary ranges.


The egg yolk is very nutritious and is a wonderful supply of vitamin D. One egg yolk accommodates as much as 41 IU of vitamin D. Eggs are wealthy in calcium, zinc, proteins, and different important minerals. 

Cod Liver Oil

Cod liver oil is an unimaginable supply of vitamin D. It can also be extraordinarily wealthy in Vitamin A. One teaspoon of cod liver oil gives as much as 113% of an individual's each day vitamin D necessities.


Salmon is wealthy in vitamin D. It can also be a very good supply of omega-3 fatty acids and has high-quality lean protein. Cooked salmon has as much as 447 IU of vitamin D.


Vitamin D, “the sunshine vitamin”, is a necessary vitamin for the physique. However, since we don't get sufficient vitamin D via pure sources, consuming vitamin D dietary supplements can fulfil our necessities. These dietary supplements assist preserve optimum vitamin D ranges and guarantee calcium and phosphorus regulation within the small gut. However, extra vitamin D in our physique can also be dangerous and may trigger hypercalcemia, additional resulting in kidney and lung harm. In addition, it might additionally affect your psychological well being. Therefore, when you resolve to take dietary supplements, seek the advice of a doctor beforehand to decide on a complement that's greatest suited on your physique. 

Vitamin D is less complicated to soak up with the fat current in our our bodies. Therefore, it's higher to take vitamin D dietary supplements after the largest meal of the day. It doesn't matter whether or not that's breakfast, lunch, or dinner. Vitamin D dietary supplements can be found as liquids, capsules, gummies, or chewable tablets.

Frequently Asked Questions

Q. Is it OK to take vitamin D day by day?

A. Yes. Our our bodies require vitamin D to carry out numerous capabilities. Therefore, we should always guarantee a daily vitamin D consumption in our our bodies. However, you must begin taking vitamin D dietary supplements solely after consulting with a healthcare knowledgeable. 

Q. Is taking a vitamin D complement secure?

A. When consumed in sufficient quantities, vitamin D dietary supplements are secure. However, extra consumption might result in calcium buildup within the physique, which may be dangerous. It might result in points like hypercalcemia, lung and kidney harm.

Q. How a lot vitamin D do you have to take day by day?

A. It depends upon the age and gender of the person. For adults, the each day necessities vary between 600-800IU. You can discuss with the detailed chart within the article to know your precise vitamin D necessities.

Q. What are the very best vitamin D tablets?

A. The mostly used tablets for vitamin D are vitamin D2 and D3 tablets. However, you must devour a pill that your physician prescribes. A health care provider will know your necessities and your well being situations. As a end result, they may suggest the tablets that greatest swimsuit you. Moreover, you must by no means devour greater than 4000IU of vitamin D except your physician recommends it.

Q. When ought to I take vitamin D morning or evening?

A. You ought to at all times have your vitamin D dietary supplements after your heaviest meal of the day. That is as a result of your physique absorbs vitamin D with the assistance of fat in your physique. Therefore, have vitamin D after consuming a meal containing excessive fat. It can both be breakfast, lunch or dinner.

Q. How are you aware when you're low in vitamin D?

A. A health care provider or doctor might diagnose your vitamin D deficiency by performing a diagnostic check for blood glucose ranges. However, when you often really feel sleepy or drained, have again or joint ache, expertise hair loss, temper issues and complications, you usually tend to have a vitamin D deficiency.

Q. How can I increase my vitamin D?

A. Sunlight is the pure supply of vitamin D absorption. So, you'll be able to enhance your vitamin D ranges by spending a while out within the solar day by day. You also can embody dietary sources reminiscent of fish, mushrooms and many others. However, one of the simplest ways to spice up your vitamin D consumption is to devour dietary supplements after consulting together with your physician.

Q. Is it higher to take vitamin D day by day or as soon as per week?

A. You can embody exterior sources of vitamin D reminiscent of daylight and dietary sources reminiscent of fish and mushrooms each day. However, if you're consuming dietary supplements, following the doctor’s prescription and dosage is advisable. Generally, it's best to have dietary supplements day by day reasonably than weekly or month-to-month.

Q. Which fruit is excessive in vitamin D?

A. Several fruits are wealthy in vitamin D. However, as per the worldwide models, orange has the best vitamin D focus amongst fruits. Therefore, fortified orange juice is one of the simplest ways to fulfil your vitamin D necessities via fruits.

Q. What's the distinction between vitamin D and vitamin D3?

A. There are two sources of vitamin D in our bodies- vitamin D2 and D3. Both are types of vitamin D. So there isn't any significant distinction between the 2. However, vitamin D3 is a extra absorbable type of vitamin D.

Q. Should I take vitamin D or D3?

A. The proper dose of vitamin is extra necessary than the kind of vitamin D you get. It will guarantee your ranges are within the appropriate vary to keep away from deficiency. Most consultants suggest 600 to 800 IUs of vitamin D per day. However, vitamin D3 is a greater possibility for dietary supplements as a result of it's simple to soak up vitamin D.

Q. Who shouldn't take vitamin D3?

A. It is advisable for individuals with kidney and coronary heart issues to seek the advice of a doctor earlier than beginning vitamin D dietary supplements. In addition, individuals with kidney stones ought to restrict vitamin D3 dietary supplements as it might worsen stone formation.

Q. Does taking vitamin D have unintended effects?

A. When consumed in prescribed doses, vitamin D dietary supplements are secure. However, extra consumption might lead to unintended effects reminiscent of lung and kidney issues, hypercalcemia, temper issues and many others.

Q. What meals are highest in vitamin D?

A. Although meals make for under 10% of our physique’s vitamin D, some fruits might assist us fulfil our vitamin D necessities. For instance, fortified orange juice, yoghurt and cheese, fish, cod liver oil, and salmon are vitamin D wealthy meals.

Q. Do bananas have vitamin D?

A. Bananas don't comprise vitamin D. However, they comprise magnesium which performs an important position in activating vitamin D within the human physique. 

Q. What is a fast supply of vitamin D?

A. Sunlight is the best and quickest supply of Vitamin D. Your pores and skin absorbs vitamin D from daylight and fulfils your vitamin D absorption.

Q. Do carrots have vitamin D?

A. No. Carrots don't comprise vitamin D. However, they're a wealthy supply of vitamin C and Vitamin A that gives a number of well being advantages. For instance, they assist enhance imaginative and prescient, stop most cancers, helps drop a few pounds and many others.

Q. Do Apples have vitamin D?

A. No, apples don't comprise vitamin D. However, they're one of the crucial nutritious fruits that present many well being advantages. For instance, they assist increase immunity, decrease blood stress, support digestion and many others.

Q. Do Almonds have vitamin D?

A. No, almonds don't comprise vitamin D. None of the nuts and seeds, reminiscent of almonds, walnuts, and many others., have vitamin D.

Q. What drink has probably the most vitamin D?

A. Fortified orange juice is a wealthy supply of vitamin D. A glass of fortified orange juice has as much as 137 IU of vitamin D.

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