Calcium is an indispensable element for proper human body
functioning, such as building and maintaining bones and teeth. It is
also required for the transmission of nerve impulses and regulation
of the heart rhythm . Soybean is
an excellent source of high-quality protein, polyunsaturated fatty
acids, vitamins, minerals, and other nutrients .
Soymilk, a homogenized beverage prepared from whole soybean,
has gained wide acceptability worldwide because it is free of
cholesterol and lactose, yet, has a similar or higher protein content
than cow’s milk . Although not valued
for its calcium content, soymilk, which is typically made with a
bean:water ratio of 1:8 (w/v), does reportedly contain as much as
27 mg/100 mL calcium . In order to bring
the calcium content to a level comparable to or exceeding cow’s
milk (120 mg/100 mL), commercial soymilk is often fortified
with calcium up to 240 mg calcium/100 mL (Canabady-Rochelle et