Let's say you are writing a past event of a diabetic patient to a doctor.

"The patient had consumed 1 whole canned juice of 'del monte' pineapple 240ml, which usually is just a half of it, and 1 pc. of ''suman sa lihiya'' HAD EATEN/HAD BEEN EATEN as her late afternoon snack, before the blood sugar check.

As you can see, the patient had had her juice & a snack before the blood sugar test. But should I use had eaten or had been eaten?