Do most women just extreme diet to get thin and never talk about it?

I once lost a ton of weight in my late 20s and I was always super ashamed to admit to anyone that it was due to excessively under eating, but by god did it work. My body shrunk right down and the weight has stayed off ever since. My eating habits have stayed the same (small portions, no junk snacking) and I don’t consider myself to have any other body image issues at all. I also don’t want to say anything irresponsible or triggering here for anyone who does suffer from an ED, but I really want to know what other women are doing…. Are these kinds of dramatic cuts in eating really that common among most women? And do we just not admit it?