b12 injections and alcohol consumption Vitamin absorption: 5 things light to heavy drinkers should know How Long Does It Take
Description
In humans, the answer is unknown, because no clinical trial has tested it

In short, B12 injections work, but differently based on your starting point: For those with low levels

Keep the morning fasted and delay carbohydrate intake until after any morning training if possible

They bypass the digestive system, delivering vitamin B12 directly into your bloodstream

The treatment gently heats the skin to stimulate collagen production, a necessary component of supple skin

Whether chronic use affects normal age-related changes in metabolism, body composition, or health cannot be determined from current data
