Yes, however the auto feeder MAY prove to be less efficient. Even though it does double the amount of total flavor points the food provides, the auto feeder only dispenses a certain amount of flavor every 5 seconds according to the feeder level (level 1 dispenses 1 flavor every 5 seconds, level 2 dispenses 2 flavor every 5 seconds, etc).
However, flavor that is stored in the feeder stays in the feeder day-by-day until the feeder dispenses it. Unless your feeder level is very high, I recommend just hand feeding her low-fullness foods whenever a flavor event begins, because that would be much more flavor-dense, and the amount of calories provided by the flavor points could very quickly outpace the calories provided by the feeder, provided you have a point or two in ‘Flavor Booster’.