Fructooligosaccharides (FOS) are a type of prebiotic fiber that are naturally found in certain fruits and vegetables, such as onions, garlic, and asparagus. They are commonly used as a dietary supplement and food additive, including in protein powders, due to their potential health benefits.
In protein powders, FOS may be added as a source of fiber to help support digestive health and improve gut function. FOS can help to stimulate the growth of beneficial gut bacteria, which can help to improve digestion and support overall health. Additionally, FOS may help to regulate blood sugar levels, which can be beneficial for individuals with diabetes or other metabolic disorders.
FOS are generally considered safe when consumed in recommended amounts.