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Royston Haward | London | June 2026 I have been using MUL-TI-VIT since November 2025 and the result has been marvellous

There are also methylmalonic acid (MMA) tests that provide a more complete analysis of the vitamin B12 available in your body

This intensive start ensures your system gets the immediate supply it needs to correct the deficiency and address symptoms like fatigue and brain fog

You also have to pay a monthly premium of $185

Some researchers also believe that vitamin C might be able to reduce the side effects of cancer drugs

B12 shots might benefit people dealing with: Constant tiredness Low blood cell counts Trouble digesting Pernicious anemia Low nutrient levels Struggles with weight loss A study showed that injecting B12 into the muscle raised levels in the blood faster and kept them higher for longer than taking B12 by mouth in those with absorption problems