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I have also accessed other sites for my B12 injections, including, the upper arm (deltoid), thigh (vastus lateralis), and the buttocks (dorsogluteal)

When GLP-1 agonists were combined with progestin therapy, the response was stronger than with progestin alone

Not FDA-approved

However, B12 supplementation is not directly associated with weight loss

They have also been known to increase concentration, memory, and energy levels, support weight loss by improving metabolism, help boost the immune system, have been shown to improve sleep and can help stop some types of hair loss

B12 is essential for converting food into energy, particularly through the metabolism of carbohydrates and fats