https://www.selleckchem.com/products/dss-crosslinker.html Moreover, we demonstrated that normalization using a specific dilution prior to the analysis outperformed post-acquisition normalization. We also demonstrated that the combination of various normalization methods does not necessarily improve statistical discrimination. This study re-emphasized the importance of normalizing urine samples for metabolomics studies. In addition, it appeared that the choice of method had a significant impact on result quality. Consequently, we suggest osmolality-based normalization as the best method for normalizing urine samples. NCT03335644. NCT03335644. Osteoporosis is characterized by decreased normal bone density. More than 8.9 million fractures worldwide annually are caused by osteoporosis; these fractures are a significant cause of morbidity and mortality. Evidence suggests that the modification of several lifestyle habits could assist in lowering the incidence of osteoporosis. However, limited studies have been conducted in Saudi Arabia to assess the knowledge, attitudes, and lifestyles associated with osteoporosis among college-age females. This study aimed to provide evidence to assist in the development of effective strategies against osteoporosis. This cross-sectional study was conducted at Princess Nourah Bint Abdul Rahman University (PNU), in February 2018; a self-administered questionnaire was used. The different components of the questionnaire assessed knowledge, attitudes, and lifestyles with regard to osteoporosis. The participants were divided into groups on the basis of their age as follows juniors, 17-20 years of age; seniors, 21-25 yeaimprove osteoporosis awareness and prevention. Osteoporosis misconceptions were extremely prevalent among PNU students, as was poor knowledge and lifestyle habits regarding osteoporosis. Information regarding osteoporosis presented through the media needs to be revised and simplified. Concerned institutions should combine their