Thinning due to malnutrition?

[Illpiab]

Hey all, so a while back I noticed that my hair was rather thin all over (maybe thinner on the sides) however I do seem to have a mature hairline so I was under a strong impression that it was pretty normal. I've looked this up and it seems as if thinning on the sides is abnormal also, due to the fact that I mostly end up eating maybe once to twice (mostly snack food) a day sometimes skipping a real meal for days on end for about 5 years I'm kind of thinking that this may be undernourishment. I am not seeing any clumps falling out though so is this just normal or caused by a bad diet?

Also I'm 20

[Notcoolanymore]

Most likely your hair loss has nothing to do with diet.

[burtandernie]

If your missing hair and your a man than it almost has to be MPB yet people love making excuses and going into far fetched theories they made up. Propecia worked on men that were stressed, not taking enough of such and such vitamin, and so on.