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Signs and Symptoms of Deficiency rapid breathing or shortness of breath headaches indigestion loss of appetite palpitations problems with your vision feeling weak or tired diarrhoea a sore or red tongue, sometimes with mouth ulcers problems with memory, understanding and judgment (cognitive changes) Numbness Muscle Weakness Where do I get Vitamin B12 From

Insulin-induced phosphorylation and activation of cyclic nucleotide phosphodiesterase 3B by the serine-threonine kinase Akt

While lifestyle habits can influence energy levels, nutrient deficiencies such as low vitamin B12 can also play a role

PubMed PMID: 6692038

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