I've ever researched between this 2. On average, the calories of olive oil is slightly lesser than butter which may not be very significant.

of course we hope it's not, unfortunately it is :( i miss those days where food addictive ain't a common thing you know.

It's the fact. It's called addictive or preservative. They are all the same. I guess everyone do realize why certain food can be kept so long for ages, like literally years but doesn't spoil? When you look behind like (E254), blah blah, all these is the one that kept your food for ages and they also all food addictive.