"Diet restrictions" refers to rules or guidelines about what a person can or cannot eat. These restrictions may be due to certain health conditions, food allergies, cultural or religious beliefs, or personal choices. Full definition
I have lots of diet restrictions so I would definitely make my own oat flour and nut butters. (iheartnaptime.net)
A lot of people on our gift list have different diet restrictions so it is sometimes challenging to find a recipe that fits our needs. (theholisticmama.com)
So I am familiar with diet restrictions, since I had to avoid dairy myself when nursing them. (kiwiandbean.com)