骨卒中予防みそ汁はビタミンD不足・欠乏患者の握力と血清25‐水酸化ビタミンD濃度を改善する

We examined the nutritional effects of miso soup supplemented with vitamin D on serum level of ２５‐hydroxyvitamin D（２５（OH）D）and grip strength in sixty-seven inpatients（２６ males, ４１ females）of vitamin D insufficiency. The average age was ８４．６ years old and average body mass index was ２０．５kg/m２. These inpatients were divided into two groups, miso soup supplemented with vitamin D group（D group）（n=３５）and control group（n＝３２）.
Nyucal Kouso FiberⓇ, NUTRI Co, Ltd, easily dissolved in miso soup. The D group ingested ２g of Nyucal Kouso FiberⓇ containing １０μg of vitamin D once a day. The daily diet included １７．５μg of vitamin D. As a result, D group and control group ingested ２７．５ μg and １７．５ μg per day of vitamin D, respectively.
These results showed that both serum level of ２５（OH）D and grip strength of D group were significantly higher for one month than before（p<0.001）. In contrast, in control group, serum level of ２５（OH）D also higher than before, whereas grip strength did not change so much.
These findings suggest that vitamin D-added diet is nutritionally effective to improve serum level of ２５（OH）D and grip strength of patients with vitamin D insufficiency.