Your metabolic rate increases after every meal because of the “thermic effect” of eating and digesting food. Your body burns a different amount of calories depending on the type of macronutrient you are eating. For example your body doesn’t burn as many calories when digesting carbohydrates and fat as it does with protein.
Your body only burns about 4-7 calories for every 100 calories of carbohydrates or 100 calories of fat that you eat. Though if you were to eat 100 calories of protein it would require your body to burn roughly 24-28 calories to digest that protein.
If you are looking at net calories your body is only netting about 70% of the protein calories that you consume and netting 93-96% of the carb or fat calories you consume.
Now you decide which food you want to put in your body for weight loss! This is why I like to recommend the UltraMeal shakes. They have protein and other nutrients to burn fat, not muscle. Order UltraMeal shakes at www.DrJeffreyTucker.meta-ehealth.com