Q: Why does this formula combine calcium, magnesium, and vitamin D3 together?
A: Bone health depends on the coordinated action of all three nutrients, not calcium alone. Vitamin D3 is essential for calcium absorption from the intestine. Without adequate vitamin D3, the body absorbs only 10 to 15% of ingested calcium. With adequate vitamin D3, absorption increases to 30 to 40%. Magnesium is required for the activation of vitamin D in the body, and is itself a structural component of bone mineral matrix. Taking calcium without vitamin D3 and magnesium significantly limits its effectiveness for bone support.
Q: What are the Health Canada approved uses for this product?
A: This product is approved by Health Canada (NPN 80028969) for two specific uses: it helps in the absorption and use of calcium and phosphorus, and it helps in the development and maintenance of bones and teeth. These approved claims reflect the established and well-documented roles of calcium, magnesium, and vitamin D3 in bone and dental health.
Q: How much of each nutrient does the full daily dose provide?
A: Each softgel contains 750mg of calcium, 250mg of magnesium, and 200 IU (5mcg) of vitamin D3. At the suggested use of 1 softgel twice daily, the full daily dose provides 1500mg of calcium, 500mg of magnesium, and 400 IU of vitamin D3. Consult your healthcare provider to determine the appropriate daily dose for your individual needs.
Q: Why is vitamin D3 (cholecalciferol) used rather than vitamin D2?
A: This formula uses vitamin D3 (cholecalciferol), the form of vitamin D naturally produced by the skin in response to sunlight exposure. Vitamin D3 is more efficiently converted to the active form of vitamin D (calcitriol) in the body compared to vitamin D2 (ergocalciferol), which is derived from plant sources. Vitamin D3 is the preferred form for supplementation for this reason.
Q: How does vitamin D3 support calcium absorption?
A: Vitamin D3 is converted in the liver and kidneys to its active form, calcitriol. Calcitriol stimulates the production of calcium-binding proteins in the intestinal wall that facilitate the active transport of calcium from the digestive tract into the bloodstream. Without adequate vitamin D3, calcium absorption is passive and inefficient. Vitamin D3 also supports the absorption and utilization of phosphorus, the second most abundant mineral in bone and teeth.
Q: What is the role of magnesium in bone health?
A: Magnesium plays multiple roles in bone health. It is required for the activation of vitamin D in the liver and kidneys, meaning that without adequate magnesium, vitamin D cannot be properly converted to its active form regardless of vitamin D intake. Magnesium also supports the transport of calcium into bone tissue and is itself incorporated into the bone mineral matrix. Approximately 60% of the body's magnesium is stored in bone, making it a direct structural component of bone alongside calcium and phosphorus.
Q: Why is calcium important for teeth as well as bones?
A: Teeth are composed of the hardest tissues in the human body. Both tooth enamel (the outer layer) and dentin (the inner layer) are primarily composed of calcium phosphate minerals, the same mineral family found in bone. Calcium is the most abundant mineral in tooth structure, and adequate calcium intake supports the mineral density and structural integrity of tooth enamel and dentin throughout life. Vitamin D3 supports calcium utilization in teeth, and magnesium is a component of tooth enamel alongside calcium and phosphorus.
Q: Why should this product be taken a few hours before or after other medications?
A: Calcium can interfere with the absorption of certain medications when taken at the same time, including some antibiotics (particularly tetracyclines and fluoroquinolones), thyroid medications, bisphosphonates (used for bone density), and iron supplements. Taking this product a few hours apart from other medications helps ensure that both the supplement and the medication are properly absorbed without interference. Consult your healthcare provider or pharmacist for specific guidance on timing with your medications.
Q: Is this product suitable for vegans or vegetarians?
A: No. This product is in softgel form and contains gelatin (from bovine or porcine sources) and beeswax as non-medicinal ingredients. It is not suitable for vegans or vegetarians. It also contains soybean oil. Individuals following vegan or vegetarian diets should look for a capsule-based alternative.
Q: Can I take this if I already take a separate vitamin D supplement?
A: Consult your healthcare provider before combining this product with other vitamin D supplements to ensure your total daily vitamin D intake is appropriate. Each softgel provides 200 IU of vitamin D3, with a full daily dose of 400 IU. The tolerable upper intake level for vitamin D in adults is generally considered to be 4000 IU per day, but individual needs and tolerances vary. Your healthcare provider can advise on the appropriate total daily vitamin D intake for your situation.
Q: Who should be particularly mindful about calcium supplementation?
A: Individuals with kidney disease or a history of kidney stones should consult a healthcare professional before supplementing with calcium, as impaired kidneys may not properly regulate calcium excretion. Individuals with hypercalcemia (elevated blood calcium) should not supplement with calcium without medical supervision. Excessive calcium intake may cause constipation. Do not exceed the recommended dose without healthcare practitioner guidance.
Q: Why is this product Health Canada approved?
A: This product holds NPN 80028969 from Health Canada, meaning it has been reviewed and approved for safety, efficacy, and quality as a natural health product. The NPN designation confirms that the approved uses (calcium and phosphorus absorption support, and bone and teeth development and maintenance) are backed by evidence reviewed by Health Canada, providing assurance of product quality and the validity of the health claims made.
