i was just wondering if instant oatmeal is really that shitty for you? im only 19 and its quick and easy for me and tastes good, im a slight ectomorph and i dont really worry about fat or anything like that

i normally eat three packets in the morning with 5 hard-boiled egg whites

the 3 packets alone are 390 cal/9g fat/78g carbs/9g protein/36g sugar

its got a decent amount of sugar in it, everyone always talks about that, but is it really bad for someone like me who is 19, has a ridiculous metabolism, and is looking to put on mass?