The goal of this study is to compare the effects of two dietary protein supplementation methods (per kg \[PK\] vs nitrogen balance equation \[NBE\]) on nutritional status, muscle strength, lean body mass, physical performance, and dietary compliance in cancer patients. The main questions it aims to answer are: Does the PK method improve muscle strength and lean body mass more effectively than the NBE method? Which method better supports nutritional status and physical performance in cancer patients? Are there differences in dietary compliance between the two methods? Researchers will compare the PK method (1.2-1.5 g/kg/day protein) to the NBE method (protein requirements based on nitrogen balance) to evaluate their impact on these outcomes. Participants will: Follow a personalized diet plan based on either the PK or NBE method Attend follow-up visits at weeks 4 and 8 for assessments of BMI, muscle mass, muscle strength, gait speed, serum albumin, and CRP Engage in moderate aerobic exercise (brisk walking) for at least 30 minutes a day, 5 days a week
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Change in Muscle Strength Based on Different Protein Calculation Methods
Timeframe: Baseline and 8 weeks
Change in Lean Body Mass Based on Different Protein Calculation Methods
Timeframe: Baseline and 8 weeks
Change in Nutritional Status Based on Different Protein Calculation Methods
Timeframe: Baseline and 8 weeks