Hint: Nutrients are generally substances that are found in food that provide strength and good health. There are various types of nutrients such as minerals, proteins, vitamins, carbohydrates, water etc and different types of food provide these nutrients in different amounts.
Complete step-by-step answer: We know that nutrients are essential sources for the human body to be healthy. Different types of nutrients are provided to the body based on the type of food they consume. Let us see some examples here: a) Foods like milk, potatoes, bread, rice etc are rich in carbohydrates and these carbohydrates produce essential healthy fats inside the body and provide energy. b) Foods such as meat, dairy products, sea food, egg whites etc provide proteins to the body and these proteins in combination with fats and minerals provide good nutrients to the human body. They are also extremely helpful in the growth of the human body. c) Foods such as vegetables, fruits, grains etc provide vitamins to the body. These vitamins are basically catalysts that help in enhancing the chemical reactions during metabolism. Although there are many foods that provide rich nutrients, there are some foods that have very less or no nutrition value at all. Some of those foods are water, roughage or dietary food/products.
Therefore, two components that do not provide nutrients are water and roughage.
Note: It is to be noted that in order to lead a healthy life and have good strength and metabolism, a good balanced diet is extremely important. A balanced die should contain all or most of the nutrients mentioned above in some form or another.