One way our bodies do this is through gluconeogenesis, a process that uses non-carbohydrate substances to generate glucose.
One way our bodies do this is through gluconeogenesis, a process that uses non-carbohydrate substances to generate glucose. We can also utilize protein and fat for energy. For example, amino acids in the proteins we consume can be used during gluconeogenesis to make glucose. And triglycerides—a type of fat that we store in adipose tissue—can be broken down through lipolysis and used to start a sequence of events that generates ketones when our glycogen stores are gone.