What is new?
We have shown that coffee consumption has beneficial effect on CAP and LSM and that effect is dose dependent since the positive effect of coffee consumption was the most pronounced in the frequent users. This effect was independent of a variety of relevant confounders. Additionally, we have shown that optimal sleep duration (6-8 hours per day) has also beneficial effect on CAP and LSM. Since sleep insufficiency is a common problem today and since coffee is a widely accessible and relatively low-cost beverage, present study can have considerable public health implications for the relationships between lifestyle factors and NAFLD epidemic