Source Naturals Vitamin D-3 1000 IU (25 mcg) - 200 Tablets

Understanding Vitamin D3 and D2

Vitamin D exists in two primary forms: ergocalciferol (D2) from plant-based sources, and cholecalciferol (D3) from animal sources and sunlight. Studies show that D3 is more effective at raising and sustaining blood levels of vitamin D. That's why Source Naturals uses D3 (cholecalciferol) — it's the bioactive form your body uses most efficiently. This means it gets to work quickly, supporting bone mineralization and immune function.

Why Your Body Needs Vitamin D

Vitamin D is a fat-soluble vitamin essential for calcium absorption, maintaining bone density, and supporting immune defense. Unfortunately, many adults don't get enough because of limited sun exposure or dietary sources. Source Naturals Vitamin D-3 provides 1000 IU (25 mcg) of cholecalciferol per tablet — the identical form that your skin produces when exposed to sunlight — making it an effective way to maintain optimal levels.

Key Benefits of Vitamin D

• Bone Health: Vitamin D contributes to the regulation of calcium and phosphorus, which helps maintain strong bones and teeth.
• Immune Function: It actively modulates the immune response, assisting the body in defending against seasonal challenges.
• Muscle Strength: Sufficient vitamin D supports muscle strength in older adults, promoting better balance and mobility.
• Calcium Absorption: Without adequate vitamin D, calcium absorption is compromised No matter how much you consume.

Who Needs Vitamin D Supplementation?

If you spend most of your time indoors, reside in northern latitudes, or have darker skin, you may not generate sufficient vitamin D from sunlight alone. Older adults, those with limited dairy consumption, and vegans (note: this D3 is derived from lanolin) are also at higher risk. Source Naturals Vitamin D-3 provides a convenient way to meet your daily requirements.

Choosing a Quality Vitamin D Supplement

When selecting a vitamin D supplement, look for the D3 form, clear IU content per serving, and manufacturing by a reputable company. Source Naturals meets all these criteria, offering a 200-tablet supply that lasts for months. The tablets are easy to swallow and contain No unnecessary additives.

What Makes This Vitamin D-3 Supplement Effective?

Each tablet delivers 1000 IU of cholecalciferol — the preferred form for elevating blood levels. Source Naturals has been a trusted supplement brand for over four decades, and this product is manufactured under strict Good Manufacturing Practises (cGMPs) as required by Health Canada. This ensures consistent quality and purity in every batch.

Recommended Dosage and Usage

Take 1 to 2 tablets daily with a meal. Since vitamin D is fat-soluble, eating it with food that contains fat improves absorption. If you're uncertain about your vitamin D levels, a blood test can help decide the appropriate dosage.

Safety and Side Effects

Vitamin D is generally safe when taken as directed. However, very high long-term intake may cause toxicity. Do not exceed the recommended dose unless advised by a healthcare professional. If you take medication or have a medical condition, consult your healthcare provider before use.

Support your bone health and immune function with Source Naturals Vitamin D-3 — a simple, effective addition to your daily routine.

These statements have not been evaluated by Health Canada. This product is not intended to diagnose, treat, , or prevent any disease. Always read the label and follow directions for use.