Type correlation The value of Pearson’s correlation coefficient IG and energy value 0,241* IG has a protein content 0,068 IG and the fat content 0,057 IG and total carbohydrate content 0,410* IG and the content of total ash -0,140 IG and fiber content -0,399* IG and the water content -0,271*

* Pearson linear correlations statistically significant

Table 3: Correlation coefficients between the value of Pearson's energy and nutrient content of food IG.