Human diet refers to a set of foods that are designed to meet the nutritional needs of humans and maintain the health of the body. This diet should include a variety of major food groups including fruits, vegetables, grain products, protein sources such as meat, fish, dairy, and healthy fat sources such as vegetable oils and nuts. In designing a diet, it is important to put diversity and balance between different food groups so that the body can get enough vitamins, minerals, proteins and other nutrients it needs. In addition, the amount of calories consumed should be adjusted according to the person's activity level and his goal, such as maintaining a suitable weight or losing weight. Also, you can help improve your diet and improve your health by drinking enough water and limiting the consumption of sweeteners, salt and saturated fat. Finally, following a proper diet and healthy nutrition can help improve the quality of life, maintain health and prevent chronic diseases.

Also, in addition to the diversity and balance of food groups, the importance of adjusting the size of food portions is also very important in the human diet. The amount of food consumption should be adjusted according to the specific needs of each person. Controlling the amount of calories consumed and the amount of macronutrients such as protein, carbohydrates and fats are among the measures that can help maintain a healthy weight and reduce the risk of obesity-related diseases. Also, it is very important to follow the special settings for people with special conditions such as diabetics, heart patients or those who need a special diet. Finally, the basic principles of human diet include variety, balance, appropriate amount and control of food intake. According to these principles and paying attention to your needs, you can choose a suitable diet and follow it daily to maintain the health and prosperity of the body. Also, consulting nutritionists and following your nutrition closely can help you achieve better results and maintain your body's health.

Before settlement and the invention of agriculture became common, human diet was provided by hunting and searching. Humans that we call hunter-seekers.