Is this okay to eat? Nature Valley Protein bars

Nope... Way too high in calories and fat for such a small amount of protein!  You can get almost that amount of protein from a cup of milk (and less than half the calories and a VERY small percentage of the fat).  It isn't all about just protein and sugar content.  A McDonalds hamburger patty has a lot of protein and no sugar... But, oh, the calories and fat!!!  Protein bars are no different.  Some of them are also really high in carbs.

Lora