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Natural Factors Vitamin D3 1000 IU (25 mcg) – 180 Tablets

Natural Factors Vitamin D3 1000 IU (25 mcg) – 180 Tablets

Regular price $39.54 CAD
Sale price $39.54 CAD Regular price
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Natural Factors Vitamin D3 1000 IU (25 mcg) – 180 Tablets

Regular price $39.54
Sale price $39.54 Regular price
Save % Sold out
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Understanding Vitamin D3 and D2

Vitamin D exists in two primary forms: vitamin D2 (ergocalciferol) sourced from plants, and vitamin D3 (cholecalciferol) derived from animal sources like lanolin. Cholecalciferol is the same form produced by your skin in response to sunlight. Evidence suggests that D3 is more effective at raising and maintaining blood levels of vitamin D. Natural Factors D3 comes from lanolin, providing a highly bioavailable form. Since vitamin D is fat-soluble, taking it with a meal containing healthy fats can improve absorption.

Who Needs Vitamin D Supplementation?

Many factors can reduce vitamin D synthesis from sunlight: living in northern latitudes (like most of Canada), spending most time indoors, using sunscreen, or having darker skin. Even in sunny months, many Canadians have suboptimal levels due to limited exposure. Older adults and people with certain medical conditions may also have higher requirements. If you're uncertain about your vitamin D status, a blood test can determine your levels. For many, a daily 1000 IU supplement such as Natural Factors provides a safe baseline.

Key Benefits of Vitamin D3

Vitamin D contributes to numerous bodily functions, including:

  • Bone and teeth health: Vitamin D facilitates calcium and phosphorus absorption, crucial for maintaining strong bones and teeth.
  • Immune function: It plays a role in regulating the immune system.
  • Muscle health: Adequate levels are linked to normal muscle contraction and strength.
  • Nervous system: It supports nerve transmission and overall nervous system health.

Adequate vitamin D intake is especially important during winter months when sun exposure is minimal. These benefits make vitamin D a cornerstone of daily wellness, especially for those with limited sun exposure or dietary sources.

Choosing a Quality Vitamin D Supplement

Not all supplements meet the same standards. Natural Factors tablets are third-party certified and independently tested using advanced mass spectrometry for over 700 contaminants, including GMOs, heavy metals, and pesticides, ensuring a clean product you can trust.

Recommended Dosage of Vitamin D

Each tablet contains 1000 IU (25 mcg) of vitamin D3, a typical maintenance dose for adults. One tablet provides a full day's dose. The recommended dietary allowance (RDA) for most Canadian adults is 600 IU, but many experts suggest higher intakes for those at deficiency risk. Remember that total intake from supplements and food should not exceed the tolerable upper limit unless directed by a physician. Always consult a healthcare professional before starting any new supplement.

Safety and Side Effects

Vitamin D is safe at recommended doses. However, excessive intake (usually above 4000 IU daily from supplements) can lead to toxicity, causing elevated blood calcium and potential kidney problems. Vitamin D toxicity is rare but can occur with prolonged high doses. Stick to one tablet per day and be aware of total vitamin D from all sources. If you experience unusual symptoms, discontinue and consult your doctor. Keep out of reach of children.

Why Choose Natural Factors Vitamin D3?

Natural Factors is committed to purity and potency. Each bottle contains 180 easy-to-swallow tablets, providing a three-month supply at the recommended dose. With rigorous third-party testing, you can be confident you are getting a high-quality supplement to support your wellness goals. Natural Factors is a trusted brand in Canada, known for its commitment to quality and transparency.

These statements have not been evaluated by Health Canada. This product is not intended to diagnose, treat, , or prevent any disease.

Delivery in Canada

Orders are prepared with clear Canada delivery expectations from the product page through dispatch. Delivery estimates are shown before checkout where available, and tracking details are sent after the order leaves fulfilment so customers can follow the parcel and plan around the expected arrival window.

Returns and support

Vitamin4CA offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, serving information and available variants to compare supplement options. Always check the full ingredient list, directions for use and any allergen information on the product packaging before taking any dietary supplement.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. Dietary supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. If you are pregnant, nursing, taking medication or have a medical condition, consult your healthcare professional before use.

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  • Free standard deliveryUsually 2–7 business days to Canada, after 1–3 days to prepare
  • 30-day returnsOn unopened items in original packaging
  • Secure checkoutProcessed by Shopify with major cards accepted
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Buying guide and questions

Supplement guide

Natural Factors Vitamin D3 1000 IU (25 mcg) – 180 Tablets at Vitamin4CA

Understanding Vitamin D3 and D2Vitamin D exists in two primary forms: vitamin D2 (ergocalciferol) sourced from plants, and vitamin D3 (cholecalciferol) derived from animal sources like lanolin. Cholecalciferol is the ...

Category Vitamins & Supplements
Delivery area Canada
Checkout Secure checkout
Brand Natural Factors
Price $39.54
Availability In stock
1000 IU180 TabletsBone HealthCalcium AbsorptionCholecalciferolEasy to SwallowImmune FunctionMuscle SupportNatural FactorsNon-GMO

How to choose if this supplement fits your routine

Read the ingredient list, check the serving size and directions for use. Consider the supplement form (tablet, capsule, liquid) and whether it suits your dietary requirements. Dietary supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

Questions about Natural Factors Vitamin D3 1000 IU (25 mcg) – 180 Tablets

Is Natural Factors Vitamin D3 1000 IU (25 mcg) – 180 Tablets available for Canada customers?

Yes. This product is currently available on Vitamin4CA with Canada-wide delivery.

How should I compare this with similar supplements?

Compare the active ingredients, serving size, number of servings per container, supplement form, brand reputation and price per serving. Check allergen information if relevant to your dietary needs.

Where can I find delivery and returns information?

Delivery information is shown near the add to cart area. Returns guidance is available on the product page and full terms are covered in the store returns policy.