NatureMDPI Long term human safety, pharmacokinetics, optimal dose, systemic exposure and oncologic risk signals are undefined (absence of evidence, not evidence of safety)
If you let it go for too long, it can cause problems in your nervous system such as: Vision problems Memory loss A pricking or numbing sensation Difficulty speaking or walking due to ataxia (loss of physical coordination) Damage to your extremities (hands, feet, arms, etc.), particularly your legs Other problems could include Infertility (this should go away with B12 treatment) Stomach cancer Bleeding and infections Damage your heart, brain, bones, and other organs in your body If you're pregnant and don't get enough vitamin B12, your baby is at risk of a serious birth defect called a neural tube defect
Decisions about starting, continuing, switching, or stopping any medication, including any GLP-1 receptor agonist, should be made in consultation with a licensed healthcare provider who knows your individual history, comorbidities, medications, and clinical context
Betaine is also known as trimethylglycine