The Nature Communications MD checklist is provided as Supplementary Table 11
One study found that a higher intake of B vitamins, including vitamin B12, was linked to a lower rate of age-related macular degeneration
Brain Research Bulletin, 33(3), 319323
In an observational study including 147 subjects were administered single-daily dose of various DPP-4 inhibitors like alogliptin (12.5 or 25 mg), teneligliptin (10 or 20 mg), and sitagliptin (25 or 50 mg) for 3 months
These antioxidants work in a collaborative cycle
Older research on rats suggests that it works by activating the melanocortin 4 receptor (MC4R), which then stimulates the cavernous nerve in the penis, which helps men get an erection (8)