One solution in these cases is getting B12 way of an injection
Side Effects & Safety Mild GI discomfort most common, usually transient in the first week Slight stimulant effect increased energy/alertness, especially early on Headaches occasional, typically mild and dose-related Mild insomnia if taken too late in the day No human clinical safety data all safety information from preclinical studies and community reports No liver toxicity observed in animal studies at therapeutic doses Unknown drug interactions theoretically could interact with NAD+-dependent pathways Core Supplies for This Protocol The essentials for running any reconstituted injectable: cold storage, accurate syringes, alcohol prep pads, and metabolic tracking
Drug/Laboratory Test Interactions Persons taking most antibiotics, methotrexate, and pyrimethamine invalidate folic acid and vitamin B 12 diagnostic blood assays
Preclinical studies in rodents have demonstrated reductions in fat mass, improved insulin sensitivity, and increased metabolic rate without significant changes to food intake (Neelakantan et al., 2019)
The recipes ranged from plain baking soda and water to elaborate mixes with lemon juice, apple cider vinegar, and a pinch of cayenne