The impact of
boron on the development of
obesity remains controversial in the analysis of experimental and clinical data. The objective of this study was to investigate the relationship between blood and urine
boron concentrations and
obesity in normal,
overweight, obese, and morbidly obese subjects in different age groups. A total of 105 subjects were categorized into 12 groups based on body mass index and three different age levels: as young adult (18 to 34 years old), adult (35 to 54 years old), and older adult (greater than 55 years old). Age, gender, body mass index, and blood and urine
boron concentrations were recorded for each subject. There were 50 women and 55 men, with a mean age of 44.63 ± 17.9 years. Blood and urine
boron concentrations were similar among the groups (p = 0.510 and p = 0.228, respectively). However, a positive correlation between age and blood
boron concentration (p = 0.001) was detected in contrast to the presence of a negative correlation between age and urine
boron concentration (p = 0.027). Multiple linear regression analysis showed that there was no significant relationship between gender, age, and quantitative values of body mass index for each subject, and blood and urine
boron concentrations. Although the relationship between
boron and
obesity has not been confirmed, changes of blood and urine
boron concentrations with age may have some physiologic sequences to cause
obesity.