Too good to be true?  Easy way to get protein?

Butterball  All Natural Turkey Burgers, UPC # 2265572408
Each 40z patty has 0 carbs, 22g protein, 8g fat. 
The sodium seems high at 320mg. 

What do ya'll think?

NOTE: You can see the Nutrition Facts on butterball DOT c o m.
(if I add a link or an image to this post, the post gets held hostage while pending review)