Pregnancy in Japan and other cultures?

Question:

In America, a pregnant woman is restricted in her diet, and pregnant women should limit seafood and fish consumption to avoid potentially high levels of mercury...

In Japan, and similar areas of the world where fish is a primary source or protein and eaten almost every day, do they also believe this?

Is there a higher level of mercury poisoning / birth defects in these cultures?

Do they suggest that pregnant women limit other foods that we do not?

Answer:

I don't think all doctors in Japan would restrict fish consumption by pregnant women. Some of them may do.

>Is there a higher level of mercury poisoning / birth defects in these cultures?

I haven't heard many cases like that.