Chest freezers were often kept in garages and other cold places and worked efficiently (and economically) by not having to fight central heating temperatures. I have read your column for years, and been impressed with the clear explanations you normally provide.
Amino acids are found in animal sources such as meats, milk, fish, and eggs. They are also found in plant sources such as soy, beans, legumes, nut butters, and some grains (such as wheat germ and quinoa). You do not need to eat animal products to get all the protein you need in your diet.
Like all animal foods, shrimp contains ample amounts of protein and can replace meat and poultry as a source of protein in your diet. Shrimp contains all the essential amino acids required for maintaining health and is therefore a source of high-quality protein.