It would probably depend on which kind of meat.
Meat contains nutrients such as protein.
Sausage is mostly meat, meat is a protein.
No, cooking read meat does not effect the protein content as it is stable in this type of meat. Cooking methods however can effect the vitamin content in red meat.
Protein
The measure of the nutrient content of a food compared to its energy content is referred to as nutrient density. Nutrient-dense foods provide a high level of essential nutrients relative to their calorie content, making them more beneficial for health. Foods that are high in nutrient density include fruits, vegetables, whole grains, and lean proteins. In contrast, foods low in nutrient density often contain empty calories with minimal nutritional value.
fats
Displaying the nutrient content in this way makes it easier to compare different foods or products.
Protein, dairy
increase hemoglobin
Pepperoni has protein content, but is also high in saturated fat and salt content.
They have similar nutrient needs--and meat eaters will usually eat vegetarian food.
Yes, pasteurization can affect the nutrient content of juice by reducing the levels of certain vitamins and enzymes due to the heat treatment involved in the process.