Low levels of B12 may show little to no symptoms which could easily be missed. As it worsens, a B12 deficiency may causes symptoms such as fatigue, shortness of breath, diarrhea, nervousness, numbness or tingling in the fingers and toes.
Those most at risk of developing a B12 deficiency are people with intestinal tract diseases like celiac disease or Crohn’s. Also, people that may have had changes to their digestive tracts. This could result in an inability to absorb vitamins. Supplements are a good option to ensure you’re getting enough everyday!