We provide a Vitamin B12 shot as part of your routine visit to the clinic. We also sell Vitamin B12 sublingual (under the tongue) tablets as an option for those patients that would like more Vitamin B12 at home. We think the extra Vitamin B12 helps your metabolism work the best it can. Biochemically Vitamin B12 is a very cool molecule. It is big, bold, complicated and capable. Vitamin B12 takes the building blocks of fat (specifically-odd chain fatty acids) and changes them structurally so they can jump onto another biochemical pathway to make energy and to help synthesize the building blocks of DNA. Excess Vitamin B12 causes no harm. It is a water soluble vitamin and is excreted in the urine. Put simply...we basically pee out the extra that is not used! I've enjoyed reviewing Vitamin B12's role for you by looking over my three biochemistry books. The chemistry that occurs within your body is amazing and I believe its design is no accident!