Bio-Calcium+D3+K1+K2 is a comprehensive bone-care complex providing a high percentage of easily absorbed calcium with vitamin D, which contributes to the maintenance of normal bone. Vitamin K has shown in research to activate key proteins responsible for the proper delivery of calcium to the bones.
High intakes of calcium (more than 2500mg per day) can potentially cause gastrointestinal disturbance and the formation of kidney stones in certain individuals. Excessive calcium may also interfere with the absorption of zinc, magnesium, and iron.
Those with thyroid or kidney disease should take caution when taking calcium tablets.