The efficacy of By-Health Calcium Tablets By-Health Calcium Tablets are a calcium supplement. The calcium contained in it is a natural, pollution-free coral stone. It can provide the calcium required by the human body to ensure normal metabolism and health. So, what are the functions of Tomson By-Health Calcium Tablets? First, it builds bone strength. Calcium is the basic element that forms human bones. Calcium intake can effectively enhance bone strength.