b12 injected into blood vessel Vitamin Injection Sites: All You Need to Know Vitamin B12 Injection Dosage: 7

supplementation has demonstrated increased maximal oxygen consumption and modest weight loss in meta-analyses of overweight adults

Certain Medications: Long-term use of antacids or metformin can interfere with the body's ability to absorb vitamin B12

Patients with a personal or family history of medullary thyroid carcinoma should not take these drugs

I was taking this as instructed and working out at the same time and still no difference

Several well-established risk factors increase the likelihood of B12 deficiency

Warnings: Risk of Methemoglobinemia: May cause methemoglobinemia, especially in patients with G6PD deficiency or when combined with oxidizing agents