OVAL’s MetFlex Index™ (MFI) quantifies metabolic flexibility by providing a score that reflects the ease of movement between energy sources (fats and carbs) depending on physiological demand. The higher the score, the better the metabolic flexibility, indicating a more efficient and adaptable energy utilization system in the body. Ideally, we aim for members to achieve a MetFlex Index™ score of 40 or above. This score indicates a solid foundation of health, with more efficient and healthy mitochondria at the cellular level. Reaching a score of 40 or above can significantly reduce the risk of metabolic syndromes. Additionally, members managing metabolic conditions with medication may find they can reduce their dosage or even discontinue medication. Training in the SMART Zone™ enhances mitochondrial efficiency and resilience, improving the body's ability to convert stored body fat into energy, even at higher intensity levels.