Packed With Protein. Gluten-Free. 100% Natural. 20 Grams Protein. Only 210 Calories. MetraGeniX has developed the world's first meal replacement bars with varied ratios of protein to net carbohydrates, allowing you to select your preferred ratio for optimal results. This cutting-edge technology may help support your goals for weight loss and lean muscle growth. MetraGeniX will continue to raise the bar on health and nutrition.