If left untreated, it can cause irreversible damage to the brain, spinal cord, heart, and other organs
B12 is water-soluble, with excess typically excreted in urine, and anxiety is not listed as a recognised adverse effect in MHRA product information
Possible B12 injection side effects tend to be mild and short-lived, and may include: Injection site pain, redness, or swelling Mild itching Brief diarrhea (less common) A feeling of warmth after the injection Serious side effects are rare
What to Expect When Using Semaglutide With Glycine and B12 Starting a new treatment can feel overwhelming, but knowing what to expect can ease the transition: Gradual Weight Loss : Most individuals begin to notice weight loss within the first few weeks
That said, alcohol can impair judgment about injection technique, interfere with sleep and recovery, add empty calories that work against fat loss goals, and contribute to dehydration that may worsen side effects like headaches
50% for vitamin C and 40% for tretinoin