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While some research suggests a connection between B12 levels and weight management, its role is not fully understood and it works best when paired with a healthy diet and active lifestyle

Take a fluttering heartbeat, for example

If you prefer cooking your own tuna fillet, make note that the muscles right below the skin (the dark muscles) contain a high concentration of vitamin B12

Once your levels are topped up, maintenance injections are spaced out considerably

In weight loss, B12 plays a key role as it helps your body metabolize fats and proteins

Injections deliver vitamin B12 directly into the muscle, bypassing the digestive system