We have a fascinating new study tonight on taste. It’s not hard to figure out why so many of us loathe Oprah and love chocolate ice cream. That’s easy. But there is new science tonight on why we find some foods irresistible and others impossible to swallow. Like so much else in our lives, it may be hard-wired, programmed by our mothers while we are still in the womb. ABC’s John Berman explains.

It was in “Look Who’s Talking” where baby Mikey made a culinary proclamation.

“So you are the one that’s been kicking me.”

“Well, you are the one that ate all that spicy food.”

Well, what Mikey might not have known is if mom was eating spicy food when pregnant, he’ll probably like spicy food once born.

A study out of the Monell Chemical Senses Center finds what pregnant mom eats, chances are baby ultimately likes. The womb is filled with the flavors of what mom is eating and the results, well, you can see them later.

This young fellow’s mom ate green beans when she was pregnant. When he tried them for the first time, his face is: Huh, not bad. Taste vaguely familiar. Oh, you want to give me another bite? Well, OK. Now, compare that with this dude, whose mother did not eat green beans when pregnant, and his face: Ugh, what’s that? Another? No, no, no, no, no...Oh, come on. Or this young man whose mother also did not eat green beans. We’ll let him speak for himself.

Researchers say this helps explain why kids from different countries with more adventurous menus enjoy more diverse foods. The lesson: if you want your kids to like veggies, start early, before early, actually.