The two biggest sources would be fish and soy beans. They do have a fairly large supply of pork.
One gram of protein per kilo of bodyweight is about right for most people (those who aren't bodybuilders etc...)
Sushi and rice are probably the most popular Japanese foods.
Yes, most protein foods can be frozen, although they should not be refrozen after defrosting without being cooked.
Virtually all of them. Fish (and other marine products) are among the most widely used foods in the Japanese diet.
They have quite a bit of protein in them; enough so that they are considered protein foods.
Most foods contain some protein, but the most protein is found in meats, legumes and dairy.
The most healthy protein rich foods are chicken and turkey breast as well as fish since they have almost no fat and a high protein level. Other protein rich foods with only slightly more fat are cottage cheese, lean beef and tofu.
not really, most foods have protein but they are richer in vitamins but not more expensive
Mostly Popular foods such as chinese, japanese, ETC. Most Poplar is Fish and Chips
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not necessarily. nuts are a very good source of protein, yet, they are veyr cheap in most parts of the world.
Since most sources of protein are found in meat, beans have more protein than most other non-meat foods. Therefore, vegeterians should eat more beans because they have more protein than foods like bread and pizza.