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Vitamin B12 is found only in animal foods, but in good amounts. So unless you’re a vegan, chances are you’re getting plenty of it in your diet. Yet many older adults are deficient in the vitamin. Why?

By the end of a long week, feeling drained seems normal. Deadlines pile up. Sleep gets shorter. Screens glow late into the ...

A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

Vitamin B12 deficiency can result in a host of symptoms, ranging from fatigue and brain fog to irritability and pins and needles. Despite having a normal B12 test result, some individuals may still ...

A routine blood test. A casual follow-up. Then comes the surprise. “Doctor, my B12 is low? But I eat chicken and eggs ...