Earlier quoted context omitted.
My mother (1973, Edinburgh) bought "Pure, White, and Deadly," and we all read it. I was ten or so. Yudkin attacked white flour, white (processed) fat, and above all white sugar. It made perfect sense to us all, and cutting back on sugar became a slow, yet consistent part of our lifestyle. We never ate that much anyhow. I stopped eating sugar entirely at 15. I still recall the book's cover. Edit: it took me a lot long…
>> lifelong damage to their health. It's only lifelong damage if you don't change your diet and lifestyle. The world is filled with people who were morbidly obese and have made the changes necessary to reverse the damage and live far more healthy lives now. The way you put it, it sounds like an irreversible course akin to a death sentence, which it most certainly is not.
And please don't use that weasel word "lifestyle" which the sugar industry wielded as a weapon against their victims. Oh, fatty, go and exercise some more! It's your lifestyle that's wrong, not the rubbish we've put on your table.
And we still see supermarkets with rows and rows of sugar-based junk foods. It's going to take decades to undo the cultural and educational damage let along the health damage.