I do think we are finally seeing some good macronutrient research on things like animal fats versus trans-fats. It's definitely slow. I think a factor in updat

I do think we are finally seeing some good macronutrient research on things like animal fats versus trans-fats. It's definitely slow. I think a factor in updating our collective understanding that is both tied to "people simply refuse" and "financial motivation" is that we have outdated metrics that desperately need a shakeup and there are too many vested interests in them and too many decades of momentum. The hydrogenated (high-trans-fat) margarine has fewer calories than full fat butter. Numbers are "easy" and people follow the metrics you give them. Food calories are a metric of heat particles (Phlogiston) that burn away when you incinerate food in a furnace. It's obviously biased against many understandings of macronutrients: we used to make candles directly from animal fats, we all know how easily they burn, high calories shouldn't be surprising. The fact that trans-fats take much more effort to burn may be a sign that we should trust them less, because fats probably should burn easily. If a metric is giving us funny biased-looking results, maybe we should reevaluate the metric? A lot of diets are based on calorie counting and several of those diets are run by big for-profit companies. If their systems actually worked they likely wouldn't remain profitable, would they?