The description provided indicates that your husband may be having a low hemoglobin levels. At the age of 60 years the causes of a low Hemoglobin in males includes reduced dietary intake of iron, blood loss via gastrointestinal tract (ulcers, diverticulosis, polyps, etc).
He might benefit by consulting with his doctor or a hematologist and getting additional tests including complete hemogram, a peripheral blood smear, Iron studies, a stool examination, etc.
In addition, certain tests like colonoscopy might also be helpful to know the cause.
Once the diagnosis is confirmed, in addition to specific steps to treat the cause, Iron therapy (oral or parenteral) will be helpful to improve the hemoglobin levels.
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