Is Vitamin D the Same as Vitamin D3?
Vitamin D is the broader nutrient name. Vitamin D3, or cholecalciferol, is one form of vitamin D; vitamin D2, or ergocalciferol, is another.
What Is Vitamin D3 Used For?
Vitamin D3 supplies vitamin D to support calcium absorption, bone and tooth maintenance, and normal immune function. Check each product’s label for its specific authorized uses.
How Much Vitamin D3 Should I Take?
The appropriate amount depends on your age, dietary intake, existing supplements and health circumstances. Follow the product label and seek professional advice if you are unsure. Health Canada’s general guidance recommends a daily 400 IU supplement for adults aged 51 and older, and for people aged 2–50 who do not eat vitamin D-containing foods daily. Individual advice may differ.
Should I Take Vitamin D3 With Food?
Vitamin D is fat-soluble and is best absorbed with a meal or snack containing some fat. Follow any additional directions on your product label.
Are Vitamin D3 Drops Better Than Softgels?
Drops offer a different way to take vitamin D3; the liquid format alone does not establish that a product is better. Compare the amount per serving, measuring instructions, ingredients and convenience.
Is Vitamin D3 Vegan?
Some vitamin D3 products are vegan, including formulas made with lichen-derived D3. Others are not. Confirm the ingredient source and vegan suitability on the product label or Canadian manufacturer page.
Can I Take Vitamin D3 With a Multivitamin?
Check whether your multivitamin already contains vitamin D before adding a separate supplement. A pharmacist can help you review the combined amount and determine whether an additional product is appropriate.
Can Vitamin D3 Interact With Medication?
Yes. Some medicines affect vitamin D absorption or metabolism, and certain combinations require extra caution. Ask a pharmacist to review your medications before starting or increasing a vitamin D supplement.
Can Children Take an Adult Vitamin D3 Supplement?
Do not assume an adult product is suitable for a child. Choose a product labelled for the child’s age and follow its measuring instructions. Ask a health care practitioner if you need help selecting a suitable formulation.