I am not massively familiar with the Health At any size slogan, but for me HAES means you should value movement and a healthy diet at any size. Trying to be as healthy as you can at whatever size you are.
However, I think the idea that you can be healthy at ANY size is questionable because being very fat at 25 is so different from being very fat at say 45. And also it depends on how fat. Are you 5ft 3 and 11 stone or 5ft 3 and 20 stone?
I think once you get to a certain age carrying a significant amount of excess weight, often its only a matter of time before the health issues show. There are always exceptions of course.
That said, I simply don’t believe most people involved in criticising or focusing on fat women are bothered about their health. I spent most of my adult life under 60Kg, size 8 and chucking back the cakes, chocolate and huge plates of pasta and no one was bothered. People would actually applaud it! I got a lot of admiring “ You lucky so and so - where does all the food go?”type of comment.
When I started getting past 70kg was when the snide comments from colleagues or even friends started. Was I sure I wanted to eat that calorie laden snack or have such a big slice of the cake?
Another example is I have a friend who lost 4 stone which is great and I am proud of her, but she seems to think that’s her health journey sorted, despite the fact she’s still a regular smoker and has been since her teen years.
Personally for me that wouldn’t make sense, my weight loss journey was driven by both health and “vanity” concerns - and mostly the former.
I don’t drink or smoke to begin with but my thing was sugar. I just consumed too much of it. It was a major goal of mine to reduce my sugar intake (and not substitute it with artificial sweeteners) even if it was within my calorie allowance, because it wasn’t just about losing the weight. I focused on overhauling my whole diet and eating more wholefoods, reducing UPFs and controlling my portions. I was also concerned with improving my fitness levels and now have a smartwatch to monitor my steps and heart rate. I got myself a body analysis machine and still do regularly check my body fat, visceral fat, body water, protein levels etc
I am so much more proud of the process and what it took for me to lose weight than the fact that I am significantly thinner now.