You can work out, of course, but much of your exercises will go to waste if you're not giving your body enough protein to begin with, something that we know junk food is sorely lacking.

当然，你可以锻炼，但如果你一开始就没有给你的身体提供足够的蛋白质，那么你的大部分锻炼就会浪费掉，而我们知道垃圾食品极度缺乏蛋白质。