From a discussion on Gab about why older generations weren't fat:
Rice and veggies was standard fare in every hippy abode. Herbal tea. Fruit for desert, if the trees were producing. Alcohol was not that socially acceptable. And a lot of us were luddites who walked a lot because we didn't own cars. Most people I knew who were mobile had vans that they slept in. We all did yoga, which we learned from each other. We all breastfed our babies. We didn't use disposable diapers, or disposable anything, for that matter. People my age who lived the "subculture" were by no means the majority of Boomers, but the healthy back-to-the-land lifestyle seeped into the mainstream culture eventually.