Believe it or not, if you're eating a variety of junkfood you are probably not on the road to malnutrition. A diverse diet of pretty much any quality of food is

Believe it or not, if you're eating a variety of junkfood you are probably not on the road to malnutrition. A diverse diet of pretty much any quality of food is likely to get you every nutrient you need, including the ones we don't understand. Most of the cases of people getting malnutrition from junk food seem to be from people who do something like eating nothing but ramen dry packs every day. I think that's usually part of an eating disorder, as people tend to get bored of the same food all the time. This is why the concept of a general meal replacement (as opposed to an occasional meal replacement) is scary. It has absolutely no diversity. If it's missing something it's missing it for every meal, and it takes a long time to find out that something's missing.