Calcium Citrate

Some individuals - for example, men who have no family history, or risk factors, for bone disease, and who consume plenty of dairy products - may be able to obtain adequate calcium by eating a healthy diet and taking a low-dose calcium supplement with magnesium and vitamin D twice daily. However, other individuals - including men who have a family history of bone disease - should increase their calcium supplementation without increasing their magnesium levels too much. SISU Calcium and Magnesium 2:1 accomplishes this. Incorporating Calcium citrate, which is all-natural Calcium carbonate processed with citric acid to improve bioavailability, SISU Calcium and Magnesium 2:1 provides best results if taken with meals, when gastric juices are already flowing, which enhances dissolution and absorption.

Magnesium and Vitamin D (ergocalciferol)
SISU Calcium and Magnesium 2:1 strikes a delicate balance, providing enough magnesium to do its important job, but not too much. Magnesium is essential to calcium absorption: it activates the enzyme that triggers formation of calcium crystals in bone; and it converts Vitamin D, which is also essential to calcium absorption, to its active form. However, at very high levels magnesium can cause intestinal upset. SISU Calcium and Magnesium 2:1 provides magnesium in the natural oxide form to improve bioavailability; and Vitamin D as ergocalciferol, a vegetarian form of this nutrient.

Important Points about Calcium and Osteoporosis
2:1 calcium formulas, such as SISU Calcium and Magnesium 2:1, are intended to provide bone support for individuals with some risk factors for bone loss. Although women are typically at a greater risk than men, one in eight Canadian men over the age of 50 also develops this disease. Women who are at otherwise low risk, and men with risk factors, should work hard to ensure they consume enough calcium.
Risk factors for developing osteoporosis include:
• small build
• Caucasian or Asian ancestry
• family history of osteoporosis
• little physical activity
• no weight-bearing exercise
• poor calcium intake
• limited exposure to sunlight or poor dietary Vitamin D
• more than three cups daily of coffee, tea, or cola
• more than two drinks of alcohol daily
• tobacco use
• prolonged use of thyroid medications, cortisone, prednisone, or anti-convulsants
• primary hyperparathyroidism

New research suggests that the trace minerals zinc, copper, and manganese assist magnesium and Vitamin D in improving the absorption of calcium and protecting bone mass.


Suggested Use: One tablet three times daily with food.

Each coated tablet contains:

Elemental Calcium (citrate)...300 mg
Elemental Magnesium (oxide)...150 mg
Vitamin D2 (ergocalciferol)...200 IU

excipients: microcrystalline cellulose, croscarmellose sodium, stearic acid (vegetable), magnesium stearate (vegetable), silicon dioxide, titanium dioxide.