H canxi mu thng gp nhng ngi c ch n thiu dinh dng v canxi, c th gim kh nng hp thu canxi do thiu vitamin D,Du hiu nhn bit h canxiH canxi khi u bng cc triu chng: t mi, li, cc u ngn tay, u ngn chn. Sau l s co c khp c th. Co tht cc c tay to ra du hiu "bn tay " (cc ngn tay khng xe ra c). Co tht cc c chn to ra "du bn p" (bn chn dui ra nh th ang p xe p). H canxi cng ng thi lm co tht cc c vng mt v cc c ton thn gy au n; co tht cc c h hp gy kh th. Trong nhng trng hp nng hn c th gy co git ton thn hoc khu tr.Thng thng cn h canxi cn c nhng kch thch mi biu hin r, v d nh ci nhau, tc gin, bun b, cng thng, mt mi hoc cm st...Nhng trng hp h canxi mu din bin t t, m c th gy cc du hiu thn kinh nh nh trm cm, l ln hay kch thch tm thn.Ngoi ra, ngi b h canxi mu cn c cc triu chng nh ri lon nhp tim (nhp tim khng u), tng phn x gn xng v cm gic nng hoc nga ran (cm gic ghim v kim chm) bn tay v bn chn.Nu pht hin cc trng hp h canxi mu c biu hin nghim trng nh co git, hoc co tht c th cn a bnh nhn i cp cu ngay lp tc.Nhng trng hp thiu canxi nng c th b ngng th, c nhng cn tng nhp tim v c th gy suy tim, thm ch t vong.Lm th no phng trnh?Thc hin ch n canxi bng cch n nhiu tm, cua, c, nghu, s, mc...; ung sa v kt hp vi tm nng di nh nng mt tri vo bui sng da tng hp vitamin D. Ch nn dng vin canxi b sung khi c ch nh ca bc s. Theo cc chuyn gia dinh dng, nn n cc loi rau c nh l m tc, ci tha, u bp, bng ci, b xanh, rau bina v c ci. B sung qu sung kh, u trng, u phng, u v u xanh vo thc n hng tun ca bn. Ung sa u nnh v cc loi sa b nguyn kem.Nn n hi sn. C mi, c thu v cc loi c ng hp nguyn xng l ngun cung cp canxi tuyt vi. Bn cnh , c gng n t nht 1 tun 1 ln cc mn tm nguyn v, c, hn v cc loi s b sung mt lng canxi ng k cho c th v ng qun ct gim cafe, ru v mui v nhng cht ny thng km hm kh nng hp thu canxi.BS. o Th Nga