Ischemic heart disease, or coronary artery disease. ...
Stroke. ...
Lower respiratory infections. ...
Chronic obstructive pulmonary disease. ...
Trachea, bronchus, and lung cancers. ...
Diabetes mellitus.
X-rays and CT scans and MRIs
I think it would be kidneys because of the way the question is worded, kidneys are the only things you have 2 of that also is involved in the digestion of foods.