Development of a "Personal Meal Handbook" using cellphones for adolescent

最近，日本的青少年似乎正在走向以不健康的饮食习惯和较低的体育活动水平为特征的生活方式。这可能会增加晚年生活方式疾病的风险因素，如肥胖，糖尿病，高血压和癌症。因此，青少年时期的均衡营养对预防未来的健康问题至关重要。我们开发了“个人膳食手册”作为移动的膳食管理系统，并对其有效性和便利性进行了研究。在本研究中，它被证明个人膳食手册是一个有效的工具，可以很容易地估计膳食摄入量。我们期望透过个人膳食手册的使用，能改善青少年的饮食习惯，并能为个人及社区提供健康照护服务。

Recently, adolescents in Japan seem to be moving toward lifestyles characterized by unhealthy dietary habits and lower levels of physical activity. This may increase the risk factors for lifestyle disease in a later age such as obesity, diabetes, hypertension, and cancer. Therefore, balanced nutrition during adolescence is important for preventing future health problems.We developed "Personal Meal Handbook" as a mobile dietary management system and examined its validity and convenience. In the present study, it was proven that Personal Meal Handbook was an effective tool which can easily estimate dietary intake. We expect that the dietary habits of the adolescents are eventually improved by using Personal Meal Handbook.Furthermore, Personal Meal Handbook might be able to be used to provide the health care services to individuals and communities.