: They carry essential substances like iron (via the protein transferrin), fatty acids , cholesterol , and hormones through the bloodstream.

: Certain beta globulins, such as complement proteins and $\beta$2-microglobulin , help the body fight off infections.

: Some beta globulin fractions are involved in the process of aiding blood clotting. Understanding Your Levels Beta Globulin - an overview | ScienceDirect Topics

Beta globulins play several critical roles in maintaining your health: