The microbiome plays a crucial role in metabolism by influencing the digestion and absorption of nutrients. Composed of trillions of microorganisms, it aids in breaking down complex carbohydrates and synthesizing essential vitamins. A balanced microbiome can enhance energy extraction from food, impacting weight management and overall metabolic rate. Moreover, imbalances in the microbiome can lead to conditions like obesity and insulin resistance. Maintaining a diverse and healthy microbiome through a diet rich in fiber and probiotics can significantly improve metabolic health.