I too had a hard time. I was required to do Optifast for a week pre op. By the 2nd day I was so lightheaded and sweating. I called and the PA allowed me to stay with the shakes for Breakfast and lunch but at dinner have lean Protein like baked plain chicken and vegetables. No sauces. Could have seasoning but no salt. Definitely easier to do. Surgery is tomorrow. I too am worried and hope my liver has shrunk.
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