If you&#x27;re willing to completely upend your diet, then you might only look at the nutrition table and buy the things with the lowest sugar.<p>If you&#x27;re trying to make a normal diet healthier, then the amount of unnecessarily added sugar becomes much more relevant.  It tells you when you need to find a better brand, improving the health of your food without disrupting your diet.<p>And to do that, you need to read and decode the ingredient list.  Doing this for every single food you buy is slow.<p>When it comes to RTFM: Sure, read before asking, but if something was confusing in the first place it&#x27;s often the fault of the design.  Don&#x27;t let yourself forget that.