Apple announced the iPhone 7 and iPhone 7 Plus on Wednesday, and they come in five gorgeous colors. The new design is water resistant and doesn't have a headphone jack. For the larger iPhone 7 Plus, Apple added a dual-lens camera system with a zoom lens.
Protein and Fat. Protein foods, such as meat or beans, are the next things your body metabolizes. The UCSB website says that the average metabolism rate for both is about 12 hours, but your body first uses the protein. Once all of those calories have been used, you begin to metabolize the fats.
Human Body Four Energy Sources. The human body can only metabolize four types of energy sources. These four categories are carbohydrates (sugars and starches), fats (includes oils), proteins (animal and vegetable), and alcohol.These are the only four categories of substance a body can make energy out of. Alcohol.uman Body Four Energy Sources. The human body can only metabolize four types of energy sources. These four categories are carbohydrates (sugars and starches), fats (includes oils), proteins (animal and vegetable), and alcohol.