Alternating Cardio Zones
DeLauer emphasizes that many people focus solely on zone 2 for mitochondrial health, but the flux between zones is critical for fat remodeling. He notes that this protocol can 'spearhead' the conversion of bad belly fat to good belly fat without requiring a lifetime of exercise. The nasal breathing during zone 2 is added to boost nitric oxide, which further supports mitochondrial function. This approach is designed to make subsequent dietary interventions (like fasting) much more effective because the fat tissue is primed to release stored energy.
Alternating between moderate (zone 2) and high intensity (zone 4) creates fluctuating oxygen demands. This stress signals fat cells to increase mitochondrial content to handle the variable energy needs. More mitochondria in fat means greater capacity for fatty acid oxidation and dynamic turnover, making the fat less inert and more responsive to lipolytic signals from fasting or low insulin.
Do 5 minutes of zone 2 and then do 2 minutes of zone 4 and alternate and repeat that five times through. Do that three to four times per week.

