Table 1 Functional Oral Intake Scale (FOIS) [17]

Level 1:

Nothing by mouth.

Level 2:

Tube dependent with minimal attempts of food or liquid.

Level 3:

Tube dependent with consistent oral intake of food or liquid.

Level 4:

Total oral diet of a single consistency.

Level 5:

Total oral diet with multiple consistencies, but requiring special preparation or compensations.

Level 6:

Total oral diet with multiple consistencies without special preparation, but with specific food limitations.

Level 7:

Total oral diet with no restrictions.