Getting the B12 Shot Before getting the shot, make sure to inform your doctor of any allergies, nutritional supplements you may be taking, or if youve recently consumed large amounts of alcohol
Theyre a great option on those days when you need an extra boost to fight against fatigue and low energy
Research published in Journal of Clinical Biochemistry and Nutrition indicated that methylcobalamin leads to higher and more sustained tissue retention compared to cyanocobalamin, especially in neurological tissues
But if left untreated, it may cause the following symptoms: Weakness, tiredness, or lightheadedness Lack of energy A decline in your mental abilities, such as memory and focus A painful and red tongue (glossitis) Mouth ulcers Pins and needles (paraesthesia) Disturbed vision Irritability Causes of Vitamin B12 deficiency
For adults, this results in 14.9 g of B12 absorbed per week
This applies most strongly to first-generation GHK-CU