The highest-protein foods are generally considered to be meat, poultry, and fish, as well as eggs and beans. Some examples include:

Beef: 7 grams of protein per 100 grams
Pork: 7 grams of protein per 100 grams
Chicken: 6 grams of protein per 100 grams
Eggs: 12 grams of protein per egg
Beans: 8 grams of protein per 100 grams
As for the least expensive, it's difficult to say without knowing your location and what is available in your area. Prices can vary widely depending on factors such as the type of protein, the source, and the market conditions. However, some examples of inexpensive protein foods include:

Rice and beans: A cheap and nutritious combination of carbohydrates and protein.
Lentils: A low cost and high protein source of vegetable protein.
Canned tuna: An affordable source of protein and healthy fats.
Chickpeas: A low cost and high protein source of vegetable protein.
Eggs: A low cost source of protein and healthy fats.
It's worth noting that the cost of protein can vary widely depending on factors such as the type of protein, the source, and the market conditions.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence