Are vitamin d supplements worth it?

Asked by: Isabel Lindgren
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Although the research is still hazy, some people will benefit from taking vitamin D supplements, along with sufficient calcium intake, to promote their bone health. But they don't require large amounts of vitamin D to get the benefit. "More is not necessarily better. In fact, more can be worse," says Dr.

Do vitamin D supplements actually work?

So it's perhaps natural to assume that vitamin D supplements may help strengthen our bones and protect against fractures and falls. But a large review of the research, published in October, concluded that vitamin D supplements, in low or high doses, play no such role.

Should you take vitamin D as a supplement?

Taken in appropriate doses, vitamin D is generally considered safe. However, taking too much vitamin D in the form of supplements can be harmful. Children age 9 years and older, adults, and pregnant and breastfeeding women who take more than 4,000 IU a day of vitamin D might experience: Nausea and vomiting.

Is it good to take vitamin D supplements everyday?

Taking vitamin D for long periods of time in doses higher than 4000 units (100 mcg) daily is POSSIBLY UNSAFE and may cause very high levels of calcium in the blood. However, much higher doses are often needed for the short-term treatment of vitamin D deficiency.

42 related questions found

Is 2000 IU of vitamin D safe?

Nearly all vitamin D overdoses come from supplements. The Institute of Medicine's Food and Nutrition Board's old 1997 recommendations suggested that 2,000 IU per day of vitamin D is safe for adults and that 1,000 IU per day is safe for infants up to 12 months of age.

Does vitamin D affect sleep?

Taking It Late in the Day May Affect Sleep

Research links vitamin D levels to sleep quality. In fact, several studies associate low levels of vitamin D in your blood to a higher risk of sleep disturbances, poorer sleep quality and reduced sleep duration ( 9 , 10 , 11 ).

What are signs of low vitamin D?

Symptoms of vitamin D deficiency can include muscle weakness, pain, fatigue and depression. To get enough D, look to certain foods, supplements, and carefully planned sunlight.
...
Signs and symptoms might include:
  • Fatigue.
  • Bone pain.
  • Muscle weakness, muscle aches, or muscle cramps.
  • Mood changes, like depression.

What is the best form of vitamin D to take?

The recommended form of vitamin D is vitamin D3 or cholecalciferol. This is the natural form of vitamin D that your body makes from sunlight. Supplements are made from the fat of lambs' wool. However, a clinical study reported in 2008 suggested that vitamin D2 works as well as vitamin D3.

How much vitamin D should I take if I'm deficient?

We suggest that all adults who are vitamin D deficient be treated with 50,000 IU of vitamin D3 once a week for eight weeks or its equivalent of 6,000 IU of vitamin D3 daily to achieve a blood level of 25(OH)D above 30 ng/mL, followed by maintenance therapy of 1,500-2,000 IU/day.

Which part of body absorbs most vitamin D?

The skin produces more vitamin D when in the sun during the middle of the day, the time it is at its highest point in the sky. When spending prolonged time in the hot sun, wear sunscreen, and stay hydrated. Amount of skin exposed.

Is sunlight better than vitamin D supplement?

Conclusions. Sunlight-exposure have a more positive effect on bone structure and homeostasis than vitamin D supplementation and control. This effect was more with vitamin D deficient than vitamin D sufficient rats.

How long does a vitamin D last?

Calcitriol (1,25-dihydroxyvitamin D3), the active form of vitamin D, has a half-life of about 15 hours, while calcidiol (25-hydroxyvitamin D3) has a half-life of about 15 days.

Why you should not take vitamin D?

Taking too many vitamin D supplements over a long period of time can cause too much calcium to build up in the body (hypercalcaemia). This can weaken the bones and damage the kidneys and the heart. If you choose to take vitamin D supplements, 10 micrograms a day will be enough for most people.

Which vitamins are worth taking?

According to Nutritionists, These Are the 7 Ingredients Your Multivitamin Should Have
  • Vitamin D. Vitamin D helps our bodies absorb calcium, which is important for bone health. ...
  • Magnesium. Magnesium is an essential nutrient, which means that we must get it from food or supplements. ...
  • Calcium. ...
  • Zinc. ...
  • Iron. ...
  • Folate. ...
  • Vitamin B-12.

Is there anything you shouldn't take with vitamin D?

Steroid medications such as prednisone can interfere with vitamin D metabolism. If you take steroid drugs regularly, discuss vitamin D with your doctor. The weight loss drug orlistat -- brand names include Xenical and Alli -- may cut absorption of vitamin D.

How can I raise my vitamin D levels quickly?

  1. Spend time in sunlight. Vitamin D is often referred to as “the sunshine vitamin” because the sun is one of the best sources of this nutrient. ...
  2. Consume fatty fish and seafood. ...
  3. Eat more mushrooms. ...
  4. Include egg yolks in your diet. ...
  5. Eat fortified foods. ...
  6. Take a supplement. ...
  7. Try a UV lamp.

What does vitamin D do in your body?

Vitamin D is a nutrient you need for good health. It helps your body absorb calcium, one of the main building blocks for strong bones. Together with calcium, vitamin D helps protect you from developing osteoporosis, a disease that thins and weakens the bones and makes them more likely to break.

Can vitamin D reverse autoimmune disease?

These studies show that treatment with active vitamin D is effective in modulating immune function and ameliorating autoimmune disease.

How long does it take to correct a vitamin D deficiency?

Simply adding an over-the-counter vitamin D supplement can make improvements in just three to four months' time. Vitamin D with a strength of 2000 international units daily is the recommended dose for most adults.

Does low vitamin D cause weight gain?

Vitamin D deficiency can indirectly cause weight gain by increasing depression, instigating bone mass loss, and causing tiredness or fatigue.

What is normal vitamin D level?

The normal range of vitamin D is measured as nanograms per milliliter (ng/mL). Many experts recommend a level between 20 and 40 ng/mL. Others recommend a level between 30 and 50 ng/mL.

Does vitamin D make you gain weight?

A vitamin D deficiency is unlikely to cause weight gain. However, it may cause other health problems or unpleasant symptoms, which are worth avoiding. You can maintain adequate vitamin D levels through a combination of limited sun exposure, a vitamin-D-rich diet, and taking vitamin D supplements.

Why do I feel tired after taking vitamin D?

Low energy or fatigue is a common symptom of vitamin D deficiency. That's because vitamin D seems to help mitochondria—the part of a cell that generates energy—use oxygen and power various parts of the body, including muscles. Large studies on otherwise healthy people taking a daily vitamin D supplement are lacking.

Does low vitamin D cause anxiety?

Low levels of vitamin D are associated with schizophrenia, depression and anxiety in the general population.