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Description
The deltoid (upper arm) is also an IM site but can be harder to reach on your own

Reduces Symptoms of Depression and Anxiety: Adequate levels of B vitamins have been linked to improved mental health and a reduced risk of depression and anxiety symptoms
1998 Mar;162(3):261-6

Are my symptoms caused by a B12 deficiency

Overall, increasing NAD + levels stimulated mitochondrial function, promoting mitophagy and preventing cellular senescence

Its also less likely to hit a muscle or nerve
