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Description
2.3.5.2 Dietary interventions Nutrition plays a vital role in the care of ALS patients because the disease causes major metabolic challenges

Poor dietary intake , particularly in those following vegetarian or vegan diets that lack animal-derived sources of B12

doi: 10.1016/s0014-5793(98)00281-6

So is your need for daily B12

It plays a critical role in the synthesis of myelin, protecting nerve fibers and ensuring efficient nerve signal transmission