propionyl l carnitine powder L-Carnitine (Biotics Research) Glycine propionyl-L-carnitine - Wikipedia

Furthermore, while many different foods contain this mineral, most contain very small amounts (12 g per serving) (20)

However, some patients receiving high-dose B12 supplementation or injections may experience adverse reactions, though these relate to the treatment rather than the elevated levels: Possible reactions to B12 supplementation (particularly injections): Skin reactions, including acneiform eruptions or rashes Pruritus (itching) Injection site reactions (with parenteral administration) Rare hypersensitivity reactions Non-specific symptoms such as headaches, dizziness, or gastrointestinal disturbances have been reported by some patients taking B12 supplements, but causality is not well established in clinical evidence

Furthermore, the relationship of carnitine and depression has also been explored in different clinical studies

IASLC 13th World Conference on Lung Cancer:D8.3, 2009