Quest Calcium Citrate with Magnesium and Vitamin D is a high-quality supplement containing calcium citrate, an easily absorbed form of calcium, with magnesium in a 2:1 ratio, plus vitamin D3. This synergistic formula is designed for the best absorption and utilization of these three nutrients. Calcium and magnesium are vital components of bone and tooth metabolism, and both participate in energy production, muscle contraction, nerve function, and the maintenance of the acid-alkali balance of body fluids. Vitamin D is essential for the absorption of calcium.
Adults take 1 caplet twice daily with meals, or as directed by a health care professional.
Each easy-to-swallow caplet of Quest High Potency Calcium and Vitamin D contains 600 mg of elemental calcium (citrate, carbonate) and 200 IU of vitamin D3. This product contains no artificial preservatives, colours, flavours, or added sugar, starch, milk products, yeast, gluten, or salt.
Recommended Daily Allowance: Calcium: Dosage varies, depending on age. Vitamin D: Dosage varies, depending on age.
Food Sources: Calcium: Dairy products, legumes, dark green leafy vegetables, wheat bran, sea vegetables, almonds, Brazil nuts, figs. Vitamin D: Sunlight is the best source; however, it is found in small amounts in fatty fish such as mackerel and salmon. Other sources are eggs from chickens fed vitamin D and milk that has been fortified with vitamin D.
Cause of Deficiency: Calcium: Abnormal parathyroid function, vitamin D deficiency, magnesium deficiency, alcoholism, low-calcium diet, phosphates from carbonated beverages, excess caffeine, excess sodium. Vitamin D: Inadequate sunshine, poor dietary choices, some medications.
Symptoms of Deficiency: Calcium: Rickets in children, osteomalacia osteoporosis in adults, muscle spasms, leg cramps. Vitamin D: Rickets in children, osteomalacia and osteoporosis in adults, joint pain.
Complementary Nutrients: Calcium: Magnesium, vitamin D, potassium, vitamin K. Vitamin D: Calcium.
Calcium: This mineral is well known for its essential role in the formation of bones and tooth enamel; however, it also performs many other functions. Calcium is involved in fat and protein digestion and the production of energy. It is involved in blood clotting and the transmission of nerve impulses, and it regulates the contraction and relaxation of muscles, including the heart. In addition, calcium may reduce the risk of colon cancer and suppress the growth of polyps that can lead to cancer.
Vitamin D: This vitamin regulates calcium metabolism. Without vitamin D, the body cannot properly absorb calcium, and the bones and teeth become soft and poorly mineralized.
The efficacy for the use of calcium and vitamin D for the protection of bones is supported by countless studies. In a three-year, randomized, double-blind, placebo-controlled study, 800 IU daily of supplemental vitamin D was given in combination with a calcium supplement. The population group included nursing-home residents who were indoors most of the time, and thus not getting the benefit of vitamin D from sunshine. The vitamin D-calcium combination was found to significantly protect against hip fracture in these individuals.
No known side effects at recommended dosage.
Consult a health care professional before use if you have a serious illness or are on any medications.
Consult a health care practitioner before use if you are pregnant or breastfeeding. Keep out of reach of children.