来自MSN8 天
The Best Time of Day to Take Vitamin B12 for Maximum Absorption, According to a Dietitian
However, that number jumps to 2.6 mcg if you’re pregnant and 2.8 mcg if you’re breastfeeding ... According to the NIH, our ...
AOL9 天
How vitamin B12 could give you an energy boost
such as 500 mcg or 1,000 mcg, but because your body absorbs only a small percentage, those doses are considered safe. A prescription form of vitamin B12 can be given as an injection, notes the NIH ...