B12 is safe on its own, but a few conditions call for extra care, which is why a provider reviews your history before treatment: Leber's hereditary optic neuropathy, a rare inherited eye condition, where certain forms of B12 may be a concern for the optic nerve
Step 2 convert your dose into syringe units
But if the building above is structurally unsound with shifted loads and weakened supports, fixing the foundation alone will not prevent future problems
Fish, seafood, meat, eggs, tofu, soy, oats, yogurt, and cheese are natural sources of vitamin B12
You should not take B12 injections if you are allergic to vitamin B12 or cobalt or if you have Lebers disease[18], a rare genetic condition that can lead to optic nerve damage and vision loss
This includes proper institutional oversight, appropriate experimental design and compliance with laboratory safety standards for research compound use