One myth, one pet peeve. (not sure if it's a myth, more a way to make a point)
Myth: Eggs, especially the yolk are bad for you.
I think the roots of this stems from people, even scientists in the 70's, drawing a connection between dietary terms and bodily function terms... cholesterol and fat. The incorrect linking of these terms have lead to the extraction of the nutritional power of the egg and bastardizing a great food source with products like "egg beaters"
Dietary cholesterol is NOT and does not lead to body cholesterol. In fact, saturated fat leads to bodily cholesterol production, and not the good kind (LDL), from what I have read.
Anyway, step away from the egg-white omlette, and step up to the full power of the incredible, edible egg, in all of it's golden glory!
Pet peeve: The argument of "no other species in the animal kingdom does ______, therefore, we (humans) shouldn't." I see this most when people discuss milk.
Don't give me that crap! No other animal cooks food by fire either, so I suppose we should quit doing that too! If you are going to follow the "animal kingdom", then do so in all it's glory. Don't cherry pick the aspects you want and ignore the others.