For someone with normal B12 levels, the benefit of routine injections for wellness is unproven, while potential harms, however small, accumulate with repeated treatment
Among these categories, increased beta-3-adrenergic-receptor RNA expression was directly reported in the cited AOD9604 mouse study
The absence of observed harm in rodent studies does not confirm a favorable therapeutic index in humans
Vitamin B12 is an essential vitamin for the human body
Everything else is noise designed to overcomplicate what should be straightforward
Vitamin B12 can be found naturally in animal products , such as: Beef Organ meats (like liver and kidneys) Fish (especially fatty fish, like salmon and tuna) Milk and Dairy Products Eggs You can also consume B12 through certain fortified foods , such as cereal and other grains, and through oral supplements