Vitamin injections, often called vitamin shots, are a method of delivering high doses of vitamins, minerals, and other nutrients directly into the body, typically through an intramuscular (IM) injection (into a large muscle like the arm or thigh) or an intravenous (IV) injection (into the bloodstream via a drip).
The core concept is that this delivery method bypasses the digestive system, allowing for faster and more efficient absorption of the nutrients directly into the bloodstream compared to oral supplements. Absorption rates can be much higher with injections.