Two energy sources: carbohydrates vs fatty acids

Read when and why glycolysis is harmful --> click here

The choice of an energy pathway is dictated by the law of substrate along-term vailability in food

The utilization of an energy source depends on short-term substrate availability to cells

Differences:

• The fatty acids pathway is more energy efficient by 40%
• Ketone bodies enter the cells by simple diffusion or are carried by transporters
• Glucose enter the cells being carried by transporters that are under influence of insulin
• The carbohydrate pathway includes the state of glycolysis, which is shown to potentially impose oxidative damage