[DOI] [PMC free article] [PubMed] [Google Scholar] 101.Joo J.H., Sharma N., Shaia J., Wu A.K., Skugor M., Singh R.P., Rachitskaya A.V
Although methylcobalamin injection is not present in plants, it may be added to some breakfast cereals
The most common reports are mild stimulant-like effects (warmth, slightly higher resting heart rate), insomnia if dosed late in the day, and mild stomach upset with capsules
Symptoms of overmethylation can include: [23] Restless legs/pacing Hyperactivity High pain tolerance Histamine intolerance Sleep disorders Panic disorders Paranoia Insomnia Low libido ADHD Low motivation Depression Anxiety High levels of neurotransmitters (dopamine, norepinephrine, and serotonin) A high copper to zinc ratio Generally, undermethylation will result in symptoms more akin to depression and sluggishness, while overmethylation is usually linked to symptoms like hyperactivity and anxiety
doi: 10.3892/ol.2018.8036 40 ParkSHLeeHParkKKKimHWParkT
They found a half-life of under 30 minutes post-injection, with bioavailability after intramuscular administration at 14 to 19 percent for rats and 45 to 51 percent for dogs