Malnutrition is caused by dietary and nutritional imbalances that can have an impact on blood parameters and vital organs. The use of local agricultural resources for adapted diets appears to be an effective solution to post-weaning infant malnutrition. The aim of this study was to evaluate the effectiveness of four newborn diets made from local agricultural resources in improving biochemical, hematological, and histological parameters in rats that had previously experienced mild acute malnutrition. A total of 42 juvenile male rats, with an average age of 80 ±5 days and an average weight of 103.46 ± 5.10 g, were divided into six groups. Each group consisted of seven rats, with two control groups (LTC and LSA) and four experimental groups (LAR1A, LAR1B, LAR2A, and LAR2B). The experiment had three distinct phases: an initial adaptation period lasting 5 days, followed by a phase of inducing malnutrition lasting 19 days, and finally a phase of nutritional rehabilitation lasting 14 days. At the conclusion of the malnutrition induction and nutritional rehabilitation phases, blood samples were collected and used to evaluate biochemical and haematological markers. Kidneys and liver were removed for histological analysis.The findings revealed that the period of inducing malnutrition had a detrimental impact on several parameters, such as urea, triglyceride, total protein, C-reactive protein, albumin, ALAT, ASAT, WBC, hemoglobin, hematocrit, and MCV. Nevertheless, the ingestion of LAR diet derived from indigenous ingredients successfully returned all of these blood markers to the required levels for rats. Furthermore, histological examinations demonstrated that there were no kidney or liver abnormalities at the end of the trial.The LAR diets have rehabilitative effects on the biochemical and haematological parameters of rats. This suggests that these diets can be used therapeutically to treat moderate acute malnutrition and meet the nutritional needs of children aged 6 to 36 months.