Cross-European Patterns of Obesity: Where Does Croatia Stand?—Descriptive Analysis of Waves 2015–2022 of the Survey of Health, Ageing and Retirement in Europe (SHARE) Including Adults Aged Over 50

This paper investigates the prevalence of obesity and its links to health and dietary habits in middle-aged and older populations in Europe (50+), with a particular focus on Croatia. In Croatia, only 33.9% of adults have a normal BMI, while almost two-thirds (64.8%) are classified as overweight or obese, placing Croatia among the EU countries with the highest prevalence of overweight. Obesity significantly increases the risk of serious health complications, including cardiovascular disease (CVD) and type 2 diabetes. Therefore, we used data from the SHARE (Survey of Health, Ageing and Retirement in Europe), for the last four waves (wave 6–wave 9). The nutritional status was investigated (using the body mass index, BMI) as well as its relationship with cardiovascular disease and dietary habits. Different BMI categorizations were used (i) for the population under and (ii) over 65 years of age, and the results show that a significant proportion of the middle-aged and older European population is overweight or obese. When it comes to dietary habits, statistically significant differences in meat, fish, or chicken consumption were noted (p < 0.001): the Croatian population, especially men, consumes them significantly more often on a daily basis compared to the EU average. Similar patterns of dairy, legumes/eggs, and fruit/vegetable consumption were observed between the EU and Croatia, although there are some statistically significant differences in daily dairy consumption among the older population and in consumption of legumes/eggs and fruit/vegetables 3–6 times a week among the older population. The prevalence of CVD generally increases with increasing BMI in both regions and age groups. However, Croatia has a statistically significantly lower prevalence of high cholesterol compared to the EU in both age groups. Also, the trend of diabetes is more pronounced in the middle-aged population in Croatia compared to the EU. These results indicate specific differences in dietary habits and the association of BMI with certain CVDs in Croatia compared to the European Union average.