"Diet requirements" refers to the specific types of food or nutrients that a person needs to consume in order to maintain good health or achieve a particular goal, like losing weight or managing a medical condition. Full definition
Also includes special diet requirements such as wheat - free (although many recipes do contain wheat). (my-favorite-dog.com)
A nutrition diet chart is a diet chart that helps you to keep a track of your nutritional diet requirements and is a very useful tool when drawing up a personalized diet plan. (diethealthclub.com)