You may have health issues that interfere with your bodys ability to absorb the nutrient, you might not be getting enough in your diet, or you could be taking drugs that lower the levels of B12 in your body
Heart failure symptoms (rare, mostly in those with underlying heart disease): Shortness of breath Swelling in ankles or feet Rapid weight gain
Injected Intramuscular: 1x weekly or every 3 days Vitamin injections deliver essential nutrients directly into the muscle, allowing for 100% absorption into the bloodstream
The peer-reviewed literature is also concentrated within a single research group (Watowich lab, University of Texas at Austin) and its industry partner Ridgeline Therapeutics, with limited independent replication to date
While vitamin B12 is generally safe for most people, it is still essential to consult your physician before starting
The human body can store vitamin B-12 for up to four years