I sometimes think we wouldn't have become so obese if we hadn't tried so hard not to be. When I was a teen I thought I was a bit too fat at 5'6" 115 lbs. This was because my best friend weighed 110. (?)
So I was extremely interested in all the weight loss schemes and the articles about diet and exercise in my mother's magazines; Journal, Redbook, Vogue, Bazaar, Good Housekeeping, plus my own Seventeen, Glamour, Mademoiselle and Ingenue. They almost all
only had such articles in April or May to prepare us for "swimsuit season."
Weight Watchers hadn't started yet and anyone who exercised was under suspicion as a "health nut." My female classmates did no exercise or sports unless forced to in gym class. We ate whatever we felt like including all our mothers' home baked cookies and cakes, meatloaf, mashed potatoes and tiny servings of canned peas. No we didn't have much fast food, we didn't need to, it was all at home in the form of pancakes and bacon for breakfast, hot school lunches and big hearty dinners.
Yet we were all fairly thin. I think it was because our metabolisms and hormones worked. We quit eating when we were full and our brain knew when were full because we had never dieted.
When we became obsessed with diets; low fat, low carb, South Beach, Atkins, raw food. and fasting we set our selves on a path of yo-yoing -- with every diet ending in a regain plus ten more pounds.
Now our bodies are so messed up we can't fix it. I no longer think obesity is preventable. Sure we can lose, but 98% regain so it's fairly hopeless.
https://highline.huffingtonpost.com/articles/en/everything-you-know-about-obesity-is-wrong/
Read it and weep.