Consanguinity constitutes one of the major health problems worldwide, in which consanguineous marriages are associated with an increased risk for congenital malformations and autosomal recessive diseases. Although the advancement in modern biomedicine and forensic laboratories techniques continue to guide scientists to move forward to unravel many life sciences secrets, it is still ambiguous to investigate the full picture of milk kinship and its related consanguinity. Theoretically, it is possible to see such consanguinity developed from early sufficient breast-milk feeding. Thus, scientists should cooperate to investigate the problem practically to find a proper solution. This review article focuses on the alleged consanguinity that evolves from milk breastfeeding or beyond through wet nursing or milk formula feeding. Additionally, this article proposes the idea of removing milk genetic components to establish a new safe genetically free formula as a promising solution