‘Low-fat’ is pretty bad, not just because it turns out excess sugar is far worse (and ‘low-fat’ marketed foods often increased sugar to make them taste better),

‘Low-fat’ is pretty bad, not just because it turns out excess sugar is far worse (and ‘low-fat’ marketed foods often increased sugar to make them taste better), but also because there are fats that are fine (like monounsaturated fats), and ones we should probably be having more of (like omega 3). There can be inherently bad things about eating less of that, even if lowering saturated fat intake is a good thing… So I would say ‘low-fat’ as a principle was definitely bad and counter-productive advice.