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Within the diversity of Amazon fruits with potential functional activity, Solanum americanum which contains bioactive compounds that have potential to reduce weight gain, modulates metabolism, inflammatory and oxidative processes. Thus, this study aimed to evaluate the centesimal composition of this fruit and effects of Solanum americanum ingestion in rats. The centesimal composition was determined and two groups were constituted receiving by intubation (gavage) either water - control group (CO n=5) or 0.3214 ml of the fruit by 100 g body weight - experimental group (MP n=10). Feed intake and weight gain were measured (g) daily and at the end of the trial blood was collected for biochemical determinations (mg dl-1). Solanum americanum presented 81.36 ± 0.77 g of humidity, 3.58 ± 0.43 g of ashes, 0.24 ± 0.003 g of protein, 0.13 g ± 0.01 of lipids, 14.70 g of total carbohydrates, with pH 4.39 ± 0.02 and titratable acidity of 0.69 ± 0.02 g citric acid 100 g-1. MP group consumed less feed (25.05 ± 3.72) than CO group (28.34 ± 2.93) (p=0.018) suggesting that the fruit consumption may have provided a greater satiety that might have reflected on the trend to weight gain reduction in MP group (p=0.21). There was a tendency towards the blood glucose (90.90 ± 22.09) (p=0.47) and cholesterol (107.60±16.58) (p=0.54) reduction in MP group The aforementioned effects can be possibly attributed to the presence of bioactive compounds, which makes the consumption of this ripened fruit a sustainable option for management of chronic degenerative diseases.