Older adults face a heightened risk of chronic diseases due to physiological changes, functional decline, and dietary imbalances. Although nutrition education can enhance dietary habits, its influence on physical activity is less clear. This study, conducted at the Seongnam Senior Industry Innovation Center in Gyeonggi Province, South Korea, assessed the effects of group-based nutrition education on 24 adults aged 65 and older (10 men, and 14 women; mean age 76.08 years). Participants engaged in a 12-week program that focused on hypertension, dyslipidemia, diabetes, and nutrition management. Anthropometric measurements, physical activity capacity, and dietary intake were evaluated before and after the intervention. Results showed significant reductions in body weight (p=0.038) and waist circumference (p=0.003), while BMI, body fat, and blood pressure remained unchanged. Appendicular skeletal muscle mass, muscle mass index, and right-hand grip strength decreased. Dietary fiber intake saw a slight increase, while cholesterol intake decreased significantly (p=0.007). Waist circumference decreased in both the groups consuming less than 300 mg and those consuming 300 mg or more of cholesterol. Overall, group-based nutrition education led to improvements in dietary habits and anthropometric outcomes, but did not enhance physical activity levels. Combining nutrition education with structured exercise may be more effective in promoting muscle strength and functional health in older adults.

Abstract
Introduction
Research Methods
    1. Study participants and intervention
    2. Anthropometric measurements
    3. Physical activity ability assessment
    4. Dietary intake
    5. Statistical analysis
Results and Discussion
    1. Anthropometric measurements
    2. Physical activity ability assessment
    3. Dietary intake
    4. Anthropometric measurements according to dietarycholesterol intake level
    5. Dietary intake according to dietary cholesterol intakelevel
Summary and Conclusion
References

• Jeong Ik Lee(Graduate Student, Dept. of Food and Nutrition, Eulji University, Seongnam 13135, Korea)
• Hae In Kim(Center Director, Sonbit Rehabilitation Exercise Center, Seoul 04969, Korea)
• Myung Chul Kim(Professor, Dept. of Physical Therapy, Eulji University, Seongnam 13135, Korea)
• Jean Kyung Paik(Professor, Dept. of Food and Nutrition, Eulji University, Seongnam 13135, Korea) Corresponding author