Most studies show that vitamin D3 is more effective than vitamin D2 at raising blood levels of calcifediol ( 7 , 8 ). For example, one study in 32 older women found that a single dose of vitamin D3 was nearly twice as effective as vitamin D2 at raising calcifediol levels ( 9 ).Mar 4, 2018
Why do doctors prescribe vitamin D2?
Vitamin D with calcium is used to treat or prevent bone loss (osteoporosis). Vitamin D is also used with other medications to treat low levels of calcium or phosphate caused by certain disorders (such as hypoparathyroidism, pseudohypoparathyroidism, familial hypophosphatemia).
Why did my doctor give me vitamin D2 instead of D3?
You may wonder why doctors prescribe vitamin D2 instead of D3, if vitamin D3 appears to be more potent than vitamin D2. ... Vitamin D2 is indicated to treat calcium disorders and parathyroid disorders. It is also the preferred form for patients with chronic kidney disease.Jun 17, 2021
Which is more potent D2 or D3?
Conclusion: D3 is approximately 87% more potent in raising and maintaining serum 25(OH)D concentrations and produces 2- to 3-fold greater storage of vitamin D than does equimolar D2.
What are the symptoms of vitamin D2 deficiency?
- Fatigue.
- Bone pain.
- Muscle weakness, muscle aches, or muscle cramps.
- Mood changes, like depression.
Can I take vitamin D2 everyday?
Some people may need a higher dose, however, including those with a bone health disorder and those with a condition that interferes with the absorption of vitamin D or calcium, says Dr. Manson. Unless your doctor recommends it, avoid taking more than 4,000 IU per day, which is considered the safe upper limit.
What causes vitamin D2 deficiency?
A deficiency in vitamin D can result from inadequate exposure to sunlight, inefficient production in the skin, not enough vitamin D in your diet, and health conditions that can affect it including, gastrointestinal disorders, renal diseases, and liver diseases.
Which vitamin D is best for osteoporosis?
The National Osteoporosis Foundation (NOF) recommends an intake of 800 to 1000 international units (IU) of vitamin D3 per day for adults over age 50 (NOF 2008).