The Use of Fitness Influencers’ Websites by Young Adult Women: A Cross-Sectional Study

= 1030) at least once a week. It was found that those living in cities with a population ranging from 20,000 to 100,000 were more likely to access FIS than those living in rural areas. Similarly, greater access was made by those in a high-income household rather than those with the lowest income, by those with inadequate rather than those with problematic health literacy and by those with high rather than low e-health literacy. The use of FIS was significantly associated with the consumptions of fruit and vegetables (OR, 95%CI: 2.77, 2.01-3.82), physical activity (1.74, 1.27-2.38), breast self-examination (1.54, 1.11-2.13), and also with the greater use of e-cigarettes (1.63, 1.09-2.43) and increased consumption of alcohol (1.37, 1.01-1.88). In conclusion, as access to Internet resources run by fitness influencers was a prevailing predictor of young adult Polish women's health behaviors, FIS may play a potentially important role in promoting a healthy lifestyle in this population. However, it should be remembered that there are complex patterns of associations with specific behaviors, e.g., the use of e-cigarettes or alcohol consumption.