21st Century Calcium 1000mg Plus Vitamin D3 800 IU, 90 Tablets (Pack of 4)

Key Benefits of Calcium and Vitamin D

• Bone health: Calcium provides the building blocks for bones, while vitamin D enhances its absorption to help maintain bone density as you age.
• Immune function: Vitamin D contributes to a healthy immune system, supporting your body's defences against seasonal challenges.
• Muscle function: Adequate levels of both nutrients are essential for normal muscle contraction and coordination.
• Convenient potency: Each tablet delivers 1000 mg of calcium (as calcium carbonate) and 800 IU of vitamin D3 (cholecalciferol), the preferred form for bioavailability.

Why Combine Calcium and Vitamin D?

Discover 21St Century Calcium, — Calcium and vitamin D work synergistically to promote strong bones and overall health. Vitamin D is crucial for efficient calcium absorption, making this duo vital for maintaining bone density and muscle function. A significant portion of the population does not get enough of these nutrients, particularly during winter months or with limited sun exposure. This supplement provides 1000 mg of calcium per serving plus 800 IU of vitamin D—double the amount in many standard formulas—to help fill nutritional gaps.

Who Might Benefit from This Supplement?

Individuals with limited sun exposure, such as those living in northern climates or spending most of the day indoors, may need additional vitamin D. Older adults, postmenopausal women, and those with lactose intolerance or dairy-free diets often require supplementary calcium as well. This product is suitable for anyone seeking a higher vitamin D intake without taking multiple pills.

Safety and Side Effects

Calcium and vitamin D are generally safe when taken as directed. Excessive calcium intake may cause constipation or interact with certain medications. Very high doses of vitamin D over extended periods can lead to toxicity. Consult a healthcare practitioner if you are pregnant or breastfeeding, or if you have existing health conditions or take prescription drugs. Always read the label and follow directions for use.

This product is a natural health product (NHP) licensed under the Natural Health Products Regulations. These statements are based on traditional use. Consult a healthcare practitioner for use beyond recommended dosage.

How to Choose the Right Dosage

The recommended dietary allowance (RDA) for calcium varies by age and gender, typically ranging from 1000 to 1200 mg per day. Vitamin D recommendations often start at 600–800 IU for adults. This supplement provides one tablet per serving, so you can adjust based on your dietary intake and professional advice. The pack of 4 bottles offers a convenient supply for long-term use.

What to Look for in a Quality Supplement

This formula uses calcium carbonate, a well-absorbed form when taken with food. Vitamin D3 is the same type your body produces from sunlight, making it more effective than D2. The product is manufactured by 21st Century, a trusted brand in the supplement industry. Store in a cool, dry place and keep out of reach of children.