On top of doing some of the heavy lifting directly, vitamin C can also interact with other antioxidant players, including antioxidant enzymes (specialized proteins involved in mitigating the effects of oxidative stress), and regulate gene expression related to antioxidant defense
Building on this approach, a red blood cell membrane coating was applied to doxorubicin-loaded poly(lactic-co-glycolic acid) nanoparticles onto motile algae to target lung metastases 231
Cruz F, Scott SR, Barroso I, et al
bottom line: While you can find glutathione in foods like asparagus and avocado, your bodys ability to use it depends on digestion and the presence of "building block" nutrients like sulfur and selenium
No trial has formally measured this
The bigger factor is sticking to the same time daily, not which half of the day you choose