Anyone making food from 'recipes' in the West is likely not eating 'garbage'.
Though we do eat 'too much sugar' - the 'garbage' I suggest is really over-processed, too much hydrogenated oil etc. etc..
Anyone that made their diet out of things 'they cooked themselves' could very well use the recipes as they are and do pretty well. Most dinner dishes do not even call for sugar. Mostly only cakes and what-not. Maybe muffins are a culprit? :)