The food does not change. Only the words do. These are the rules the evidence supports, with the figures behind them, so you can argue for them with whoever signs off the menu.
| Finding | Figure | Source |
|---|---|---|
| Rise in vegetarian meal sales when vegetarian options doubled, observational | 15 percentage points | University of Cambridge (2019) |
| Rise in vegetarian meal sales when vegetarian options doubled, experimental | 7.8 percentage points | University of Cambridge (2019) |
| Odds of a vegetarian choice when availability doubled | 2.6 odds ratio | French university catering research group (2023) |
| Diners who noticed the menu had changed | 6 % | French university catering research group (2023) |
| More often chosen under a flavour label than a health-restrictive one | 41 % | Stanford University (2019) |
| More often chosen under a flavour label than a basic one | 25 % | Stanford University (2019) |