13) Pumpkin Seeds: 18.5 g Protein Per 100 
While they are far from being the tastiest food in the world, there is no denying that pumpkin seeds are a substantial plant source of protein.
These seeds also provide a good amount of several minerals, particularly magnesium and zinc.
Per ounce serving, pumpkin seeds contain 5.2 grams of dietary protein.
14) Beef Jerky: 33.2 g Protein Per 100 g
As a dehydrated (and more concentrated) version of beef, jerky has an incredible protein density and contains almost 10 grams per ounce.
Since jerky is the same as beef (just without the water content), it also supplies some important B vitamins, alongside high amounts of iron and zinc.
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