Proteins are of great interest due to their amphiphilic nature, which allows them to reduce the interfacial
tension at the oil–water interface. The incorporation of proteins at the oil–water interface has allowed
scientists to utilise them to form emulsions (O/WorW/O), which may be used in food formulations, drug
and nutrient delivery. The systematic study of the proteins at the interface and the factors that affect their
stability (i.e., conformation, pH, solvent conditions, and thermal treatment) has allowed for a broader use
of these emulsions tailored for various applications. In this review, the factors affecting the stability of
emulsions using food proteins will be discussed. The use of polysaccharides to complex with proteins will
also be explored in relation to enhancing emulsion stability.