The mechanism difference matters here
It represents an actual or potential health risk to the Athlete
Methionine is used with inositol and choline (MIC) to help support and maintain the metabolizing of fat, remove toxins from the liver, and help support and maintain the prevention of fat from accumulating in the liver and body
Elastin, which the body largely stops producing after puberty, gradually fragments and loses its recoil properties
The proximity to the lumbar spine may enhance local tissue concentrations while maintaining ease of self-injection
Review whether oral supplementation would be appropriate if asymptomatic with a dietary deficiency BMJ 2019 The question is, why during this crisis, isnt our immunity boosting, life saving vitamin injection for people who cant absorb B12 from food in the Green band