"You shouldn't eat anything you can't pronounce" is an ignorant claim deserving of ridicule.
Depends how you take it. The other way round it is saying that if you are eating something you should probably learn what it is, and as an extension, that things with common names have a longer history to establish bio-compatibility. Sure, you can poison yourself with well known things, but if something is so new nobody has bothered working out a common name, it is worth at least questioning if you really want to eat it.
edit - taken as dogma, I would agree it is obviously nuts.
Depends how you take it. The other way round it is saying that if you are eating something you should probably learn what it is, and as an extension, that things with common names have a longer history to establish bio-compatibility. Sure, you can poison yourself with well known things, but if something is so new nobody has bothered working out a common name, it is worth at least questioning if you really want to eat it.
edit - taken as dogma, I would agree it is obviously nuts.