Prepagaged food is generally quite bad for you. Rancid oils, high fructose corn syrup in everything, low fiber, mystery preservatives, and so on. When i lived on that kind of food, i rapidly gained weight to 210 lbs. I look at pictures of myself from back then and it’s horrifying. I look like I’m dying. I started cooking my own food from simple ingredients, and within a year i was down to 140. I’ve kept it off ever since.