What is a D3 used for?

Vitamin D3, also known as cholecalciferol, is a supplement that helps your body absorb calcium. It’s typically used to treat people who have a vitamin D deficiency or related disorder, such as rickets or osteomalacia. Some individuals who might need extra vitamin D include: Older adults.

What is a unit of D3?

Vitamin D3 is available in the following dosage amounts: 400 IU. 800 IU. 1000 IU. 2000 IU.

What is the difference between a D2 and D3?

There are two main forms of dietary or supplemental vitamin D: D2 and D3. Both forms contribute to overall vitamin D levels in the body, and the most significant difference between them is that vitamin D2 is derived from plants, while vitamin D3 comes from animals, typically fatty fish or sheep’s lanolin⁴.

Does D3 have any side effects?

Some side effects of taking too much vitamin D include weakness, dry mouth, nausea, vomiting, and others. Taking vitamin D for long periods of time in doses higher than 4000 IU (100 mcg) daily is possibly unsafe and may cause very high levels of calcium in the blood.

When should I take D3?

Better Absorbed With Meals Vitamin D is a fat-soluble vitamin, meaning that it does not dissolve in water and is absorbed best in your bloodstream when paired with high-fat foods. For this reason, it’s recommended to take vitamin D supplements with a meal to enhance absorption.

Can you overdose on D3?

Vitamin D toxicity is rare, but it does occur with extremely high doses. It usually develops over time, since extra vitamin D can build up in the body. Nearly all vitamin D overdoses result from taking high amounts of vitamin D supplements.

Can you take 3000 IU of vitamin Da day?

Unless your doctor recommends it, avoid taking more than 4,000 IU per day, which is considered the safe upper limit.

Should I take D2 or D3?

Vitamin D2 and D3 are the main forms of vitamin D and both perform the same role in the body. Scientists are not sure if one is better than the other, although some studies have found that D3 is more effective in raising vitamin D levels in the body than D2.