1) from http://www.webmd.com/baby/guide/eating-right-when-pregnant#1
- Eat and drink at least four servings of dairy products and calcium-rich foods a day to help ensure that you are getting 1000-1300 mg of calcium in your daily diet during pregnancy.
2) 据说来自《中国食物成分表2002年》
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3) 每天盐量<6g
4) "凡是做过饭的人就知道,虾皮很轻,很干,一包虾皮,能吃好长时间。例如500g的虾皮基本吃一个月。换成每天吃的话大约20-25g。25g的虾皮大约含247g钙,相当于250ml牛奶中钙的含量。所以说,虽然100g虾皮中的含钙量多,但吃的量不多,得到的钙也就不算太多了。... 25g虾皮中大约含钠约1264mg,相当于3.2g盐。"