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

Key Benefits of Vitamin D

• Bone Health: Vitamin D contributes to the maintenance of normal bones and supports calcium and phosphorus regulation.
• Immune Function: It helps modulate the immune response, supporting your body’s natural defences against seasonal challenges.
• Muscle Strength: Adequate vitamin D supports normal muscle function in older adults, which can aid balance and mobility.
• Calcium Absorption: Without sufficient vitamin D, your body cannot absorb calcium efficiently, regardless of dietary intake.

Understanding Vitamin D3 and D2

Vitamin D occurs in two main forms: ergocalciferol (D2) from plant sources and cholecalciferol (D3) from animal sources and sunlight. Research indicates that D3 is more effective at raising and maintaining blood levels of vitamin D. Source Naturals use D3 (cholecalciferol) because it is the bioactive form most efficiently utilised by the body. This means your system can put it to work supporting bone mineralisation and immune function straight away.

Who Needs Vitamin D Supplementation?

If you spend most of your time indoors, live in northern latitudes, or have darker skin, you may not produce enough vitamin D from sun exposure. Older adults, individuals with limited dairy intake, and those following a vegan diet (whilst this D3 is derived from lanolin) are also at higher risk. Source Naturals Vitamin D-3 offers a convenient way to meet your daily needs.

Why Your Body Needs Vitamin D

Vitamin D is a fat-soluble nutrient that plays a critical role in calcium absorption, bone density, and immune defence. Despite its importance, many adults have insufficient levels due to limited sun exposure or dietary intake. Source Naturals Vitamin D-3 delivers 1000 IU (25 mcg) of cholecalciferol per tablet—the same form your body produces from sunlight—to help maintain optimal vitamin D status.

What Makes This Vitamin D-3 Supplement Effective?

Each tablet provides 1000 IU of cholecalciferol—the preferred form for raising blood levels. Source Naturals has been a trusted name in supplements for over 40 years, and this product is manufactured under strict Good Manufacturing Practises (GMP) established by the MHRA. This means you get consistent quality and purity in every batch.

Recommended Dosage and Usage

The suggested use is 1 to 2 tablets daily, taken with a meal. Because vitamin D is fat-soluble, consuming it with food containing fat improves absorption. If you are unsure about your vitamin D status, a simple blood test can help determine the right dosage for you.

Choosing a Quality Vitamin D Supplement

Look for products that use the D3 form, clearly state the IU per serving, and are manufactured by reputable companies. Source Naturals provides all of this, along with a 200-tablet supply that lasts for months. The tablets are easy to swallow and free from unnecessary additives.

Safety and Side Effects

Vitamin D is generally safe at recommended doses. However, very high long-term intake can lead to toxicity. Do not exceed the suggested use unless directed by a health care professional. If you take medications or have a medical condition, consult your doctor before starting supplementation.

Prioritise your bone and immune health with Source Naturals Vitamin D-3—a simple, effective step towards overall wellness.

These statements have not been evaluated by the Medicines and Health care products Regulatory Agency (MHRA). This product is not intended to diagnose, treat, or prevent any disease.