Most of all, that is to say we really don't need 80% of our diets to be empty calories and sugars.
Of course, there is the problem of sedentary living. I can't believe how lazy kids are these days - they don't even go for aimless bike rides anymore, because chatting online and playing 5-hour video game marathons is way more fun than real life apparently. But I'll leave that for someone else to cover.
Let's just say our culture is feeding it, and it takes willful blindness to be at all surprised.
That's a new one to me, which foods have wool in them?
You get vitamin D from a whole lot of other things you eat (it's not rare), and it takes some laboratory wizardry to derive the vitamin D3 from it (versus simply eating normal food to get it...) so nobody is adding lanolin to your food for it's wholesome goodness. It's literally only there for the texture. That's why its in your shampoo, chewing gum, leather polish and french fries, amongst a whole lot of other foods you eat.
Most people are D deficient and D3 is fat soluble. That is literally why it's added to milk.
I'm sure they are out there but I would guess it's very rare compared to the number of people that are body positive in words but not in actions.
I suspect that body positivism wouldn't have that big an effect because most people don't actually believe in it.
I ate very unhealthy and was teased quite a bit for it yet never kicked the habit. Once I started receiving more disposible income than I knew what to do with, it became a lot easier to exercise, I could buy whatever food I wanted, and it sort of spun people's heads how quickly my diet changed. People keep making fun of me for having an unhealthy diet just because of inertia even though I'm eating healthier than them.
I really see body positivism as being more caused by the obesity epidemic than the inverse. As well as the rise of social media sort of spiking body-shaming and anti-body-shaming sentiments. Not just in regards to weight but also things like height.
https://en.wikipedia.org/wiki/Proximate_and_ultimate_causati...