We understand that there are many dimensions to diets and how we eat. Please let us know if there's something specific about your eating preferences that we may be able to help with.
In the meantime, special instructions are best communicated in Notes if you're creating a Group or Event. Here, you can type any relevant information such as a preference for organic or if there are food combination issues such as milk and meat in the Kosher diet.
We hope this helps!
Oliver @ Selectivor