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This study examined the morphometric and clinical aspects as well as the nutritional and dietary management of undernourished adult patients in the Marrakech Tensift Al Haouz region, Morocco. It highlighted the specific challenges faced by these patients, in particular the significant differences in nutritional requirements and management strategies. Our results showed a significant increase in caloric intake from 19.97±0.64 kcal/kg/d to 27.23±0.12 kcal/kg/d for all patients. Muscle mass increased from 16.71±4.76 kg to 18.75±3.58 kg. The mean albumin increased to 35.9 g/L, indicating an improved protein reserve. Similarly, pre-albumin increased to 186.3 mg/dL, suggesting a rapid response to nutritional intake. At the same time, C-reactive protein levels fell, indicating a reduction in systemic inflammation. In addition, it is important to note that body mass index differed between the sexes, with women tending to gain muscle mass more slowly than men. The results highlight the urgent need to adopt a personalized approach to improving the health and well-being of undernourished patients by adjusting nutritional and dietary interventions to the specific needs of each individual.

Undernutrition presents a major risk to patients’ health and well-being following gastric bypass surgery. After undergoing this surgery, the nutritional status of three women and one man was examined in this study. Follow-up visits were used to measure weight, body composition, and biological and biochemical data. After 3 months of follow-up after gastric bypass surgery, our findings revealed a reduction in muscle mass. The average loss of muscle mass was 4.375±1.470 kg. Their initial body mass index, which was 45.01 kg/m2, on average, dropped to 28.38 kg/m2. Significant drops were observed in the mean levels of albumin and pre-albumin (albumin: 38.6 g/L to 24.8 g/L, pre-albumin: 195 mg/L to 113 mg/L). In our study, patients with micronutritional deficiencies and gastric bypass demonstrated a significant and adaptive reduction in daily caloric intake. Early identification of undernutrition makes it possible to assess its severity and, as part of the patient’s overall follow-up, to implement appropriate nutritional management.