Why isn't it good to eat chocolate and spicy food when you are pregnant?

i heard from a friend that it isn't good to eat chocolate and spicy food when you are pregnant. is it true? if it is, then why? when i heard about this, i got worried about my other friend, who is pregnant. i mean it. don't think that i'm the one who is pregnant because i'm not. she always seems to... show more i heard from a friend that it isn't good to eat chocolate and spicy food when you are pregnant. is it true? if it is, then why? when i heard about this, i got worried about my other friend, who is pregnant. i mean it. don't think that i'm the one who is pregnant because i'm not. she always seems to eat at least one spicy food everyday and chocolate and other sweets almost once every week (since she has a sweet tooth). please help me, so i can help my friend. thank you so much.
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