can b12 injections make you gain weight Beyond the Needle: Unpacking Vitamin and Your Body Benefits of B12 Injections -

B12 is present in a variety of food sources (mainly animal-based products), where it is bound to protein molecules

They are extremely effective at raising the levels of B12 in our blood quickly, which can help to reverse a deficiency, and then prevent further deficiency over time

In the short term, these injections act like little energy shots, giving you a quick boost when you might be feeling tired or low on energy

Treating a B12 deficiency may boost energy and mood, reduce stress and fatigue, and decrease symptoms of multiple conditions

Protein-Protein Interactions Involving Enzymes of the Mammalian Methionine and Homocysteine Metabolism