For CBS, install with two machine bolts. For CBSQ, install 1/4 x 2 Strong-Drive SDS Heavy-Duty Connector screws, which are provided with the column base. (Lag screws will not achieve the same load.) For full loads, a minimum of 3 side cover shall be provided.
Calcium supplements appear to increase the risk of kidney stones (American Journal of Clinical Nutrition, Jul. 2011). Some people make more kidney-stone forming oxalate after large doses (2,000 mg) of vitamin C (Journal of Nutrition, Jul. 2005).
Calcium supplements. Calcium is found in many multivitamins as well as in dietary supplements. In the form of calcium citrate (as opposed to calcium carbonate), it absorbs well and is well tolerated by most people, and the citrate may help prevent kidney stones.