我买的是650 mg/serving, 每个serving是2片

这是link: 

https://www.amazon.com/Citracal-Maximum-Soluble-Digested-Supplement/dp/B002NUNDK4?pd_rd_w=OJ5mt&content-id=amzn1.sym.59910fa8-b73c-408a-aa5f-d0b4e0aa42cb&pf_rd_p=59910fa8-b73c-408a-aa5f-d0b4e0aa42cb&pf_rd_r=X1SPFM9VRJNYSA6B4TNH&pd_rd_wg=AQpck&pd_rd_r=4ff6ae6c-e7e6-487c-bf46-8e434ef5ccb4&pd_rd_i=B002NUNDK4&psc=1&ref_=pd_bap_d_grid_rp_0_1_ec_scp_pd_hp_d_atf_rp_2_i