21st Century D 5000 IU Tablets with Calcium, 360 Count (Pack of 2)

Understanding Vitamin D3 and D2

Vitamin D exists in two primary forms: D2 (ergocalciferol) derived from plant sources, and D3 (cholecalciferol) sourced from animal sources like lanolin. Evidence indicates that D3 is more effective at raising and sustaining blood levels of vitamin D. 21st Century opts for D3 to provide optimal bioavailability. As a fat-soluble vitamin, it is best absorbed when taken with a meal containing fat.

Key Benefits of Vitamin D3

Vitamin D contributes to several vital functions:

• Bone Health: Vitamin D3 aids calcium absorption, essential for maintaining strong bones and teeth.
• Immune Support: It supports normal immune system function, helping your body defend against daily challenges.
• Calcium Absorption: By promoting calcium uptake, vitamin D3 sustains bone density and overall skeletal health.
• Muscle Function: Adequate vitamin D levels are associated with healthy muscle function and may help preserve mobility with age.
• Mood & Wellbeing: Some research suggests vitamin D may help maintain a positive mood, whilst individual results vary.

These statements are based on scientific consensus and recognized claims from the European Food Safety Authority (EFSA).

Who May Need Additional Vitamin D?

Certain groups are more prone to low vitamin D levels:

• People with limited sun exposure: Those living in northern latitudes, working indoors, or covering skin for cultural reasons.
• Older adults: Ageing skin produces less vitamin D, and kidney function declines, reducing conversion.
• Individuals with darker skin: Higher melanin levels reduce natural vitamin D synthesis.
• Those following a vegan diet: This product contains lanolin-derived D3, which is not vegan; vegans may consider D2 or lichen-based alternatives.

Always consult a health care professional to determine if supplementation is right for you.

Recommended Dosage and Usage

For adults, take one tablet daily with food, or as directed by your health care provider. Each bottle contains 360 tablets, providing a full year’s supply (pack of 2 gives 720 tablets). The 5,000 IU strength is considered high potency and is suitable for those with known deficiency or increased needs. The National Institutes of Health suggests a daily intake of 600–800 IU for most adults, but higher doses may be appropriate under medical supervision.

Quality and Purity You Can Trust

21st Century D 5000 IU Tablets are gluten-free and non-GMO, making them suitable for many dietary preferences. Each tablet also includes 90 mg of calcium carbonate to further support bone health. Manufactured in facilities that adhere to rigorous quality control procedures to ensure purity and potency.

Safety and Side Effects

Vitamin D is generally well tolerated, but excessive intake (typically above 10,000 IU per day long-term) can lead to toxicity. Symptoms may include nausea, weakness, and kidney stones. Do not exceed the recommended dose unless advised by a health care professional. If you have medical conditions or take medications such as thiazide diuretics or corticosteroids, consult your doctor before using this supplement.

This product is not intended to diagnose, treat, , or prevent any disease. Individual results may vary.

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

Why Choose a High Potency Vitamin D3 Supplement?

Vitamin D is essential for overall health, yet many people do not obtain enough from sun exposure and diet alone. 21st Century D 5000 IU Tablets provide a convenient, once-daily dose of Vitamin D3 (cholecalciferol)—the form your body uses most effectively. Each tablet delivers 125 mcg (5,000 IU) of Vitamin D3 plus 90 mg of calcium carbonate to support bone health, immune function, and more.