Vitamin D is safe in doses up to 4,000 IU (100 micrograms) daily in adults. In general, you should not take more than 4,000 IU of vitamin D per day unless your healthcare provider tells you.

Most over-the-counter vitamin D supplements are between 1,000 and 5,000 IU, and some are as high as 10,000 IU, says Adamian. ...

Your healthcare provider can order a blood test to check your vitamin D levels, which will determine whether it’s necessary, or even safe, for you to begin supplementing with vitamin D3.

Vitamin D3, aka cholecalciferol ... Most over-the-counter vitamin D3 supplements contain dosages between 1000–5000 IU, ... When taken as directed by a doctor, vitamin D3 is generally safe.

Your healthcare provider can order a blood test to check your vitamin D levels, which will determine whether it’s necessary, or even safe, for you to begin supplementing with vitamin D3.

The vitamin D supplement from Life Extension offers 125 mcg or 5,000 IU, which is significantly more than other brands. Given this vitamin D supplement has such a high dosage, it's important to ...

If you want a high-quality, organic vitamin D3 supplement, then Garden of Life Vitamin D, Vitamin Code Raw D3, Vitamin D 5,000 IU is the way to go. Pros Whole food nutrition with 5,000 IU of fat ...

NatureWise Vitamin D3 is available in 1,000 IU, 2,000 IU, 4,000 IU, or 5,000 IU pills (all of which are higher than the recommended daily value for most adults). [ 5 ] ...

Thorne Vitamin D3 - 5000 IU. $19 at Amazon. $15 at iHerb $19 at Walmart. ... People who are on the lower end of normal or just below normal may benefit from taking 5,000 to 10,000 IU of vitamin D, ...

Light tuna (3 ounces): 40 IU; To get more vitamin D from food, your best best is to eat a variety of foods with D2 and D3.. 2. Vitamin D3 is made from sunlight, but not D2. One of the main ways ...

The vitamin D and Type 2 Diabetes randomized controlled trial found that after 2.5 years, taking 4,000 IU of vitamin D3 daily was no better than a placebo at preventing diabetes in high-risk adults.

Most vitamin D supplements are between 1,000 and 5,000 IU, but some are as high as 10,000 IU, says Adamian. "There's so many different supplements, so it's very important to consult a health care ...