Multiple outlets report that experts warn vitamin B12 deficiency can show up through changes in the feet and a persistent lack of energy. The coverage highlights that people may notice burning sensations, numbness, or other changes in foot temperature, which can occur alongside tiredness that does not improve. One report states that the signs may be among the first indicators of deficiency, particularly in older adults, and cites estimates of how common B12 deficiency is in the population covered. The articles describe B12 deficiency as a relatively common condition and link it to symptoms that can affect daily life, especially for those who feel “tired all the time.”
While the reports use different prevalence figures in the excerpts provided, they agree on the core point: B12 deficiency can manifest with neurological or sensory symptoms in the feet, such as burning or numbness, and may be accompanied by fatigue. The articles attribute the observations to experts and encourage attention to these symptoms as potential warning signs, rather than waiting for more severe complications.
