Diet: how many calories in a large egg?

Self-tutoring about diet and lifestyle: the tutor mentions the calories in a large egg.

I’m permanently dieting: the way I do so is to avoid carbohydrates. (I’m not recommending this; it’s just what I do.) Therefore, I eat eggs.

Apparently, there are about 72 calories to a large egg. Yet, if the egg is then cooked in butter, the total calories can jump to over 100.

Source:

healthline.com

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.