Despite this all, there are still challenges that need to be addressed
Even though chicken, pork, turkey, and beef are good sources of protein, iron, and zinc, animal protein contains more saturated (unhealthy) fats 4 and affects blood sugar and insulin differently compared to plant protein 5
Mammalian proapoptotic factor ChaC1 and its homologues function as -glutamyl cyclotransferases acting specifically on glutathione
Konopka et al., 2020), which is linked to oxidative stress (Guerrero et al., 2019)
Nevertheless, it is important to emphasize that we cannot completely exclude that NADPH depletion may also be an important determinant of cell death upon acute H 2 O 2 stress