Can vitamin b12 deficiency be a sign of cancer is a question many people ask when they notice low energy, weakness, or unusual tiredness. Vitamin B12 is important for making red blood cells and keeping nerves healthy. When your body does not get enough B12, it can cause problems like fatigue, memory issues, or tingling in your hands and feet. Some people worry that low B12 could mean something serious, including cancer, but the truth is more complicated. Many factors, like diet or digestive issues, can cause low B12. Doctors say that while can vitamin b12 deficiency be a sign…