The impact of health guidance is recently becoming higher quality health services, and the next task is finding ways to establish a system that delivers higher quality services. Institutions that provide health guidance need to improve their services by analyzing the lifestyle habits and health examination results (e.g., BMI and blood pressure) of their clients. This study conducted simultaneous health and dietary habit checkups so that key elements for guidance (e.g., individual dietary habits, population characteristics, and main tasks) could be shared among guidance providers and be utilized for follow-up guidance. Most subjects were in their sixties or seventies, many of whom were diagnosed with obesity and/or dyslipidemia based on health examination results. Dietary habit evaluations revealed high intake of a main dish among both men and women. Intake of a main dish and a sweet snack was particularly high among men. Many subjects who excessively take in both a main dish and sweet snack were obese with a high percentage of saturated fatty acid-derived energy, indicating that this subgroup needs to be prioritized to receive guidance. Those with an appropriate intake of both a main dish and sweet snack might have consumed inadvisable levels of other dietary components, including luxury food items. However, an individual approach is also required to address the risk associated with intake of a low percentage of protein-derived energy. Similar studies in other populations and other communities are needed to assess whether the characteristics revealed in this study are specific to this particular population.