Analysis of the actual nutrition of the female population of Novosibirsk, depending on the magnitude of the glycemic index of their diet

Background. When choosing foods rich in carbohydrates, it is important to consider not only their chemical composition, but also the ability to influence the level of postprandial blood glucose (glycemic response). A qualitative indicator of this ability is the glycemic index (GI) of a carbohydrate-containing product. Recently, there have been some evidences that control of GI nutrition can be important for prevention and nutrition therapy of metabolic disorders.

Aim. To determine of the magnitude of the glycemic index (GI) of actual nutrition in women in Novosibirsk, and the study of the connection with metabolism and obesity.

Material and methods. The study was designed as cross-sectional research and was carried out within the framework of the international HAPIEE project on a random representative sample of the unorganized population of Novosibirsk, 4397 women, the average age was 57.7 ± 7.1, without diabetes. For the calculation of GI nutrition, the International Table of Glycemic Index and Glycemic Load (2008) were used. The frequency method was used to evaluate the actual nutrition. Metabolic Syndrome (MS) criteria were used in accordance with the Russian National Recommendations of the GEF (2009), as well as with the international recommendations of NCEP ATP III (2001) and JIS (2009). Statistical processing of data was carried out using the SPSS 13.0 software package (Bonferroni criterion in the GLM procedure). The odds ratio (OR) was estimated using binary logistic regression in quartiles of the glycemic index. Differences were considered statistically significant at p <0.05.

Results. The GI of women's nutrition was on average low and amounted to 53.1 units. In the quartiles of the GI OR, the MS for all the criteria used was not significantly different. In the quartiles of the body mass index (BMI) in women with GI in the group with normal body weight (BMI = 23.3 kg/m2) was significantly higher by 0.9 units (p <0.001) compared with the obese group (BMI = 37.3 kg/m2). The diet was unbalanced and did not meet the recommendation in all groups of women studied. It was noted a significant reduction in the group with obesity 1.6 times the value of total caloric intake per 1 kg of body weight.

Conclusions. Nutrition of women in Novosibirsk is unbalanced, with increased consumption of fat and inadequate intake of carbohydrates. The GI value is close to the GI nutrition of the population of European countries. The presence of a connection between the GI nutrition of women with a metabolic disorder in the sample of the population was not established.

nutrition, glycemic index, metabolic syndrome, obesity

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