Look for a purity rating of 98% or higher
Vegetarians and Vegans : B12 is found almost exclusively in animal products, increasing the risk for those on strict plant-based diets without supplementation

Hello everyone Im so pleased I found this page Sorry if this is too much ..but Im Thinking to introduce myself I need to write some of my life (first time on a forum ), I have always been extremely active only way I can explain is I will find something to do rather than not, in every aspect of my life having episodes of ibs not a diagnosed type and lots of health problems restless legs unexplained itching , one time when I was 30yrs struggling to walk for two weeks ,endoscopies few times through my life they found hiatus hernia and I even had a 2 week isolation stay in hospital when I was approx 6years old no formal diagnosis it was explained as issues with stomach numerous tests started again 8-10 yrs ago after episode of iron deficiency anemia I struggled swallowing i lost rapid weight over a month and climbing stairs extremely difficult with palpitations and breathlessness and after another endoscopy diagnosis (there words) it must have been a virus went on to have full hysterectomy approx 5yrs ago

No Direct Evidence: Scientifically, there is no established direct correlation between B12 shots and weight loss
community and clinical sources describe dermatological monitoring for these changes, especially with long-term use Injection site darkening localized hyperpigmentation Mood changes irritability reported by some during loading Managing nausea: community sources commonly describe beginning at 100-250 mcg, injecting before bed on an empty stomach, using anti-nausea medication (ondansetron) when needed, and escalating the dose gradually