Diabetes is the most common metabolic disease in which the body can’t regulate the level of glucose in the blood. It belongs to the group of the most common chronic non-infective disease of the modern world. There are two basic types of diabetes: type 1which is caused by insulin insufficiency due to destruction of beta cells, and type 2 which is caused by insulin insufficiency or insulin resistance. There is also pregnancy diabetes (gestational diabetes). Type 2 diabetes is usually diagnosed in middle and old age. Two factors have to be pointed out, and these are: a) insensitivity or resistance of the tissue on insulin action which causes increased insulin need, and b) weaker response of pancreas beta cells which can’t properly response to the increased insulin need. In Croatia the estimated diabetes prevalence in the age between 20 and 79 is 6.79%, which includes almost 260.000 adults. Including the share of undiagnosed cases, the total amount of diabetes cases in Croatia is estimated over 400.000, out of which 90-92% goes to type 2. Diagnose is given on the base of laboratory blood tests, glucose tolerance tests, fasting plasma glucose tests (FPG), determination of haemoglobin A1C, laboratory urine tests. The most common symptoms for the diagnosis of DM are polyuria, polyphagia, polydipsia and weight loss. Treatment consists of proper nutrition, physical activity, oral medicaments and insulin. The patients who aren’t persistent enough in following the recommendations of healthy diet and exercising or have poor reactions to changes, get additional medicaments. The aim of the treatment is the control of blood sugar, the control and treating of diabetes, removing of disorders and preventing the development of complications. In this thesis is presented the research conducted on 100 subjects, which was conveyed from 16th March 2019 to 17th April 2019 in The Society for the Protection of Diabetes in Varaždin, in The Diabetes Society in Lepoglava and The Diabetes Club in Ludbreg within the initiative “Measuring of the blood sugar and the blood pressure” which had the aim to mark The World Health Day. The survey consisted of the questions on sex, age, body weight and height, symptoms of DM type 2, changes in diet habits, type of diet, alcohol and cigarettes consumption, type and frequency of physical activities and diabetes complications. Any person can avoid type 2 diabetes if there is a strong decision about having the proper nutrition. Groceries and the way of preparing them so to be favourable for the diet of diabetic patients, mainly belong to the group of healthy food, according to their nutritional and energy value. That’s the reason why diabetes nutrition is recommended for healthy people and can be a good choice for the whole family.