Coronavirus: THIS vitamin B12 deficiency symptom could also be a COVID symptom

Temporary loss of smell, or anosmia, is a neurological symptom linked to COVID-19. However, severe vitamin B12 deficiency can also cause harm to the nerves throughout the body, which include nerves required for olfaction (sense of smell).A study published in the journal International Forum of Allergy & Rhinology, involved 39 patients with low vitamin B12 levels and 34 controls.Comparing the two groups, the researchers found that problems with a sense of smell may be prevalent in those with a vitamin B12 deficiency.“In this study, we showed for the first time that olfactory dysfunction may be present in patients with vitamin B12 deficiency,” the authors said. As far as COVID-19 is concerned, the Zoe Covid Study app has revealed that loss of smell is also the “strongest” predictor of COVID.Furthermore, data reveals that some with this tell-tale sign is “17 times more likely” to test positive than someone without it.