Here you can find all basic and necessary details about the shop like:
Take-away orders do not disclose your identity to the shopkeeper
Feel the standard quality of service from the shopkeeper. The shop will get your order and make it ready without knowing which customer is going to take it.
You can avoid vegetables (fruits) that are not healthy for you due to your medical condition (diseases).
So, if you or your housemate suffers from any disease (or medical condition) then you may list those diseases and do the shopping a little more confidently.