What kind of calcium does pregnant women eat better?

Now the market calcium words may be more than hundreds of kinds, but now we use a little more, more advocated, is calcium carbonate plus vitamin D3, because the light is calcium she can not actually absorb, to add vitamin D3, itself pregnant women also need vitamin D3, generally she is 600 mg or 300 mg of calcium, with 100-200 units of vitamin D3, so that the absorption reaches a better proportion.

So I don't say which is the best, I personally use the angle or have been more insistent on the use of calcium carbonate with vitamin D3, more safe, the price is not very expensive, because this is what we have to take every day.