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.
There are sound nutritional reasons to include meat in your diet; healthy meat is a terrific source of protein, vitamins, and minerals. But beware: Some meats are heavy in unhealthy saturated fat and cholesterol. By choosing the leaner cuts and cooking meat in healthful ways, you can make the most of your meat dishes.