According to the NIH, a symptom of vitamin B12 deficiency is weight loss [1]
You're taking a detour when you need a direct highway
Vitamin B12 is available in oral supplements the highest doses comes from those supplements which only contain vitamin B12 rather than medicines which combine it with other B-complex vitamins or other minerals and supplements (e.g
However, as with any medical treatment, its important to be aware of possible interactions with other medications you may be taking

Before reconstitution Lyophilized powder storage: Room temperature: Fine for months Refrigerator (2-8C): Extends shelf life to 12-24 months Freezer (-20C): Maximum shelf life (24-36 months) Keep in original packaging, protect from light Don't: Leave in hot car Expose to direct sunlight Open vial until ready to reconstitute Get moisture inside vial After reconstitution Critical: Refrigerate immediately: Store at 2-8C (36-46F) Main fridge section, not door (too much temperature fluctuation) Use within 28-30 days maximum Discard if cloudy or discolored Daily use: Remove from fridge briefly to draw dose Return to fridge immediately Don't leave out for hours Each removal should be 5 years continuous use) When to stop and consult physician: Severe or persistent side effects Allergic reaction (rash, difficulty breathing) Unexpected symptoms Contraindications Avoid BPC-157 if: Pregnant or breastfeeding (no safety data) Active cancer (theoretical tumor growth concern) Severe allergic reaction to previous dose Use caution if: Taking blood thinners (BPC-157 may affect coagulation) Scheduled for surgery (stop 1-2 weeks before) Significant health conditions (consult physician) See our peptide safety and risks guide

The best option can vary based on individual needs and health conditions