FDA reviewers cited weak evidence, poor characterization, differences between proposed and studied administration routes, and the availability of approved therapies for the conditions discussed
It is known that the Angiotensin IV/AT4 system: has cerebroprotective effects, augments long term potentiation, has well established pro-cognitive effects, and is suspected to regulate neural stem cell development
Persistent elevation of plasma vitamin B12 is strongly associated with solid cancer
Bonus: Vitamin D may also help reduce inflammation, support brain function, and lower risk for some cancers according to Harvard University
Discuss long-term use with a healthcare provider, particularly if you have any health conditions or are taking other medications 3
Even in animal studies, tiny doses have been effective, so no need to go overboard