Final answer:
Various edible by-products such as steak and kidney pudding or pie are made from animal kidneys. Liver can be used for pâtés among other dishes, while heart makes for nutritious stews. Testicles are eaten as specialty dishes in some cultures.
Step-by-step explanation:
Various edible by-products can be derived from animal organs that are often overlooked. For instance, from kidneys, a traditional British dish known as steak and kidney pudding is made, which is also frequently prepared as a pie. Kidneys may come from sheep, pigs, or cows and serve as important excretory organs in these animals. The liver is another versatile organ used in cooking and can be made into pâtés, sautéed, or incorporated into stuffings. Heart can be prepared as hearty stews or grilled dishes. Each organ is rich in specific nutrients like proteins, vitamins, and minerals, the inclusion of which in the diet helps in achieving a nutritionally dense meal.
Edible by-products from testicles, often called rocky mountain oysters, are considered a delicacy in some cultures. Additionally, there are various other foods that provide nutritional benefits, which include cereals, fruits, vegetables, legumes, and organ meats. In terms of sustainability, it's important to note that using human-edible crops to feed livestock is a practice that might require reconsideration to ensure future food production is environmentally sound and economically affordable.
Certain pudding and pie fillings may utilize animal-derived gelatin, which is extracted from parts like bones and connective tissues, although not directly from the organs in question. Other typical by-products from organs include cured meats and some types of sauces.