Can you please provide evidence for

来源: 于 2010-10-01 09:34:30 [旧帖] [给我悄悄话] 本文已被阅读：次

that 1) calcium in food grade calcium sulfate (gypsum) can be absorded by human digestion system?

2) there is not any relationship between long term eating gypsum-bearing Tofu and less number of teeth, small and poor quality of bones for most Chinese adults?