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Browse single vitamins and combination formulas by nutrient, strength and dosage form.
Shop current prices and availability below. Use the product and brand filters to narrow the list, or add an in-stock item directly to your cart.
Vitamin products can differ substantially even when their front labels look similar. Compare the medicinal ingredient amount per serving, chemical form, serving schedule and other included nutrients. Check your total intake across multivitamins, fortified foods and individual supplements so the same vitamin is not unintentionally repeated.
Vitamins support normal physiology, but a product is most useful when it addresses a documented deficiency, a recognized life-stage recommendation or an intake gap that food changes cannot reliably close. Symptoms such as fatigue, hair loss or poor concentration are nonspecific and should not be used to guess a vitamin deficiency.[5][6]
B vitamins and vitamin C are water-soluble, yet high supplemental amounts can still cause harm. Long-term high vitamin B6 can injure nerves, folic acid can mask some signs of vitamin B12 deficiency, and vitamin C can cause gastrointestinal effects or be unsuitable with iron-overload conditions.[8][9][10][11]
Vitamins A, D, E and K require closer attention to total intake because the body stores them. Cod-liver oil, multivitamins, prenatal products and single-vitamin products can overlap, and vitamin K can conflict with some anticoagulant plans.[12][3]
Compare the amount per full daily dose, age group, duration, warnings and the eight-digit NPN. The licensed claim describes what Health Canada has authorized for that exact formulation; it does not make every dose appropriate for every person.[2][4]
| Product type | When it may fit | Important checkpoint |
|---|---|---|
| Single vitamin | A specific intake gap, laboratory finding or Canadian life-stage recommendation | Avoid duplicating the same vitamin in blends.[6] |
| Multivitamin | Several modest gaps or a clinician-selected life-stage product | More than 100% Daily Value is not automatically better.[7] |
| Liquid, chewable or gummy | Swallowing or adherence needs | Count sugar, serving size, storage and child-safety risk.[4] |
| High-potency formula | A defined, professionally supervised reason | Greater interaction and excess-intake risk; not routine wellness insurance.[3] |
Bring your medication list, allergies, health conditions and current supplements. A Sina pharmacist can help you compare labels and identify questions for your prescriber.
Call 604-336-7462Different products can use different forms, doses and routes. Compare the medicinal-ingredient table and directions on the exact Canadian label.
That depends on your diet, life stage, laboratory results and healthcare plan. A pharmacist or clinician can help identify unnecessary duplication.
No. More is not automatically better. Use a dose that matches the product label and your healthcare recommendation.
Compare the exact medicinal ingredients, amount per full daily serving, dosage form, Canadian licence number when applicable, intended use, warnings and total daily cost. A longer ingredient list or higher number on the front label does not by itself make a product more suitable.[2][4]
No. The useful amount depends on the nutrient or ingredient, the reason for use, food intake, age, health conditions and medicines. Higher exposure can add adverse effects, interactions or duplicate ingredients without adding benefit.[3][4]
Sometimes, but compare every medicinal ingredient first. Multivitamins, powders, herbs and condition-specific formulas often overlap. A pharmacist can total the daily exposure and check whether the combination conflicts with medicines or health conditions.[3][2]
The answer depends on the ingredient, the outcome being measured and whether a deficiency or other cause is present. Agree on a realistic outcome and review date before starting; do not continue an ineffective product indefinitely or delay assessment of persistent symptoms.[3]
Yes. Natural health products can alter absorption, sedation, bleeding, blood pressure, blood glucose, thyroid tests and drug metabolism. Share the product name, NPN or DIN-HM, ingredient list and dose with your pharmacist or prescriber.[3][2]
Licensed natural health products normally display an eight-digit NPN or DIN-HM. Search that number in Health Canada’s database and compare the licensed use, ingredients, dose and risk statements with the package in hand. Cosmetics, foods and accessories follow different rules.[1][2]
Ask first if you are pregnant or breastfeeding, selecting a product for a child, preparing for surgery, taking prescription medicines, or living with kidney, liver, heart, bleeding, immune, seizure or hormone-sensitive conditions. Bring an up-to-date medication and supplement list.[3]
Content prepared by Sina Pharmacy team using the sources above. It is not a diagnosis or an individualized treatment plan. The current Canadian product label and advice from your healthcare professional take precedence.
