Oligosaccharides are short chains of sugar molecules, typically containing 3 to 10 monosaccharides. They are found in various foods, such as beans, onions, and garlic, and play a crucial role in nutrition. These carbohydrates are not fully digestible by humans, which means they can reach the large intestine, where they are fermented by beneficial gut bacteria, promoting digestive health. In addition to their role in digestion, oligosaccharides can also act as prebiotics, helping to nourish the good bacteria in our gut. This can lead to improved gut health and may even support the immune system. Overall, oligosaccharides are an important part of a balanced diet.