“…Among the many other clinically available dietary supplements for reducing fatigue, such as caffeine [ 9 , 10 ], theobromine [ 11 ], flavanols [ 12 , 13 ], and taurine [ 14 ], the placenta has been widely used and commonly available in the health food market with its extensive use against immune disorders and for wound healing and cellular regeneration [ 15 ]. The placenta is a vital barrier in the fetus during the gestation period, contributing growth and development of the fetus via exchange gases, nutrients, and waste with their mother via blood [ 15 , 16 ]. Furthermore, it is a well-known source of bioactive compounds, including growth factors, functional peptides, and hormones for fetus growth and development [ 17 ].…”