is oral b12 as effective as injections Should You Use Sublingual Over Capsules & Shots? B12 Injections vs Oral Supplements:

A test dose may be recommended if you have a history of sensitivity

Never reuse needles

Low B12 is associated with depression, irritability, brain fog, and memory difficulty

Patients who transition from gastric banding to other bariatric procedures such as sleeve gastrectomy or Roux-en-Y gastric bypass should be aware that these carry a higher risk of B12 and other micronutrient deficiencies due to their malabsorptive components, and monitoring should be intensified accordingly

Of course youll need syringes, 1-3ml depending upon your vitamin B12 dosage

In insulin resistance research, 5-amino-1-methylquinolinium injection is used to verify the relationship between NNMT and insulin resistance