This is Foods rich in vitamin B12 fish and seafood meat eggs dairy products fortified plant-based dairy alternatives fortified breakfast cereals fortified nutritional yeast Vitamin supplements can make up for a shortfall in the diet, especially for vegans and strict vegetarians
A common protocol, for example, is to begin with about 20 mg of NAD+ (corresponding to a small volume from the vial, typically around 0.1 mL depending on concentration) administered subcutaneously and gradually increase the dose over subsequent injections up to around 100 mg per injection
Looking for a pharmaceutical-grade option
Those with gastrointestinal tract problems who cannot absorb vitamin B12 properly
In fact, most people are able to get enough vitamin B12 through diet alone
Animal studies are limited and human data are lacking, making it difficult to assess potential risks to the fetus or nursing infant