So apart from being very expensive, shrimp seem to be a great protein source.
I would love to hear if anyone has better information, but what I have found claims that in 100g of shrimp (a little less than a quarter pound) there is 18g of protein and less than a gram of fat and carbs. A pound of shrimp works out to about 80 grams of protein. Personally I have a mild allergy to shellfish and get a distinct tingle in my mouth when I eat them.
Now, I marinade them in butter, but I am certain most of that drips off when I cook them.
Recipe:
One stick of salted butter
Cavender's Greek Seasoning 2 tbs
Juice of one lemon
Crystal hot sauce 1 tbs
Garlic Salt 1 tbs
Marinade about a half pound of 16-20 (if you can afford it) or 21-25 for a half hour or so.
Skewer them and grill over low to medium indirect heat until pink (as long as 4-5 minutes depending on the heat your grill produces). Indirect heat is key as a flare up will quickly burn the buggers.
Happiness ensues.