一、钾在体内的分布与代谢正常成人平均含钾约为250g,其中仅约1.2%存在于细胞外液,其余几乎全部集中在细胞内。每日人体需钾不过2g,一般食物中含钾盐都超过了此需要量。从食物中摄入钾盐大部分在较短的时间内就能在肠中被吸收,正常时排入粪便的量不超过摄 First, the distribution and metabolism of potassium in the body average normal average potassium is about 250g, of which only about 1.2% exist in the extracellular fluid, the rest almost all concentrated in the cell. Daily body potassium but 2g, potassium salt in general foods are more than this need. Potassium intake from food most of the time in a short period of time can be absorbed in the intestine, normal discharge of manure does not exceed the amount of photo