Collectively the EARs, RDAs, AIs, and ULs are referred to as dietary reference intakes (DRIs)
This makes them especially useful for individuals who have difficulty absorbing vitamins through the digestive tract or those with certain conditions that impair nutrient absorption
10.3389/fimmu.2018.00675 Front Immunol
Lipotropic injections include a cocktail of weight-loss promoting agents, such as vitamin B12
Adverse effects on kidney, liver and nervous system, Nausea, Allergic responses, Rashes, Diarrhea, Stevens-Johnson Syndrome (rarely), Low levels of zinc (if supplements are taken for long), Bloating and cramping, and Breathing issues (in the case of asthmatic people)