Vitamin D3

Medically Reviewed by Dr. Harshi Dhingra, M.D.

Last Reviewed: Feb 28, 2023

Common Questions


Common Questions about Vitamin D3


Is it good to take vitamin D3 every day?

Taking vitamin D3 every day is generally safe. Vitamin D supplements can address vitamin D deficiency and help the body absorb calcium to maintain healthy bones. However, too much vitamin D can be harmful. Check your recommended daily allowance of vitamin D (this varies according to age) and take vitamin D supplementation only if you are not getting enough vitamin D from your diet.



What happens when vitamin D3 is low?

Low vitamin D levels can lead to a loss of bone density (osteomalacia and osteoporosis in adults and rickets in children). Severely low vitamin D can also lead to other health conditions.



Who needs vitamin D supplements?

Older adults, including postmenopausal women, obese individuals, those with dark skin, and people with inadequate sun exposure, may need vitamin D supplements. Dietary supplements may also be required to correct vitamin D deficiency in people with gastrointestinal conditions such as celiac disease and Crohn’s disease, which can lower vitamin D absorption from food.



How much vitamin D is too much?

More than 4,000 IU of vitamin D in a day from all sources, including food, fortified foods, and dietary supplements, can be harmful. The recommended dietary allowance of vitamin D varies by age, ranging from 400 IU in infants to 600 IU in children and adults and 800 IU in older adults over the age of 70 years.



Which foods contain vitamin D?

Natural food sources of vitamin D include fatty fish, fish liver oils, beef liver, egg yolks, and cheese.



What is the price of vitamin D without insurance?

Without insurance, vitamin D can be as high as $14.09, but with a free BuzzRx prescription discount coupon, you could pay as low as $4.68 for the most common version of this medication. Use the BuzzRx drug price look-up tool to find the lowest discounted price, and be sure to enter the correct dosage, form, and quantity for the most accurate pricing. While generics tend to have the best savings, you can also use your BuzzRx card and coupons to purchase brand-name versions. It never hurts to ask your pharmacist to try BuzzRx when filling or refilling any of your prescription drugs—whether you have insurance or not.



What is the price of vitamin D with insurance?

Ask your pharmacist or insurance provider for your copay price on vitamin D—copay amounts vary depending on the type of insurance plan you have and if there is a deductible to reach before prescription drug coverage begins.

You could save up to 80% on your prescription medication with a free BuzzRx discount coupon for vitamin D. When using the BuzzRx lookup tool to find the price of your medicine, be sure to enter the correct dosage, form, and quantity to receive the most accurate discounted pricing. It never hurts to ask your pharmacist to try BuzzRx when filling or refilling any of your prescriptions—whether you have insurance or not.