: Certain beta globulins, such as complement proteins and $\beta$2-microglobulin , help the body fight off infections.
: They carry essential substances like iron (via the protein transferrin), fatty acids , cholesterol , and hormones through the bloodstream.
: Some beta globulin fractions are involved in the process of aiding blood clotting. Understanding Your Levels Beta Globulin - an overview | ScienceDirect Topics