Earlier quoted context omitted.
Rules of thumb: 1. Don't buy meals; buy ingredients. 2. The longer the list of ingredients, the more likely it is to be "highly" processed 3. The way you avoid 'highly' processed stuff is to avoid processing altogether. Buy corn you have to husk, meat you have to cut, fish you have to filet, wine you have to uncork, bread you have to slice, etc.
> Buy corn you have to husk, meat you have to cut, fish you have to filet, wine you have to uncork, bread you have to slice, etc. Ok, this is just silly. Cutting your own meat doesn't make it healthier than having a butcher cut it for you. Box wine is no more or less healthy than bottled wine with a cork. Slicing bread yourself doesn't change its health contents. Its statements like these that make the whole argument…
Obvious exceptions apply, such as going to the butcher, as you have astutely observed. These do not invalidate the rule-of-thumb.