The calcium in spinach is among the least bioavailable of food calcium sources. By way of comparison, the human body can absorb about half of the calcium present in broccoli, yet only around 5% of the calcium in spinach.
Billerica, Massachusetts. Billerica /bÉªlËrÉªkÉ/ is a town in Middlesex County, Massachusetts, United States. The population was 40,243 according to the 2010 census. It borrows its name from the town of Billericay in Essex, England.
Billerica was a contender for CNN Money's Best Places to Live in 2009 but did not make the top 100 list for the nation. In 2016, Billerica was on the NeighborhoodScout's America's Top 100 Safest Cities list. Education Public schools. Billerica Public Schools operate primary and secondary schools. The Billerica public school system consists of six elementary schools, two middle schools, and one high school.