RESUMO:Neste trabalho foram comparados os efeitos da farinha de linhaça dourada e farinha de linhaça marrom sobre o perfil lipídico e evolução ponderal em ratos Wistar. Os animais foram divididos aleatoriamente em três grupos, Grupo Controle (GC); Grupo suplementado com Farinha de Linhaça Marrom (LM) e Grupo Suplementado com Farinha de Linhaça Dourada (LD). Os animais foram submetidos à avaliação ponderal em dias alternados até o dia do sacrifício, no 36 o dia, quando amostras de sangue foram coletadas para avaliação do perfil lipídico. O uso da farinha de linhaça como suplemento dietético de ratos Wistar, no período de 35 dias, promoveu redução significativa dos níveis de triglicérides séricos e da razão CT/HDL-c, com concomitante aumento dos níveis séricos de HDL-c, demonstrando assim efeito cardioprotetor. Os efeitos sobre o incremento de massa corporal dos animais durante o período do experimento sugerem importante ação preventiva no desenvolvimento da obesidade para a farinha de linhaça.Palavras-chave: farinha de linhaça marrom, farinha de linhaça dourada, perfil lipídico, peso corporal, ratos Wistar ABSTRACT: Evaluation of the effects of supplementation with brown and golden flax (Linum usitatissimum L.) flour on lipid profile and weight gain in Wistar rats. In this work, the effects of brown and golden flax flour were compared based on lipid profile and weight gain in Wistar rats. The animals were randomly divided into three groups: control group (CG); group supplemented with brown flax flour (BF); and group supplemented with golden flax flour (GF). The animals were subjected to weight assessment on alternate days until sacrifice at the 36 th day, when blood samples were collected for lipid profile evaluation. The use of flax flour as dietary supplement to Wistar rats, in a 35-day period, led to a significant decrease in the serum levels of triglycerides and TC:HDL-C ratio, with concomitant increase in HDL-C serum levels, demonstrating thus a cardioprotective effect. The effects on rat weight gain over the experimental period suggest an important preventive action of flax flour on the obesity development.
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