Data of analysis of the combined effect of diversified Zn(II) content in the diet and Cr(III) supplementation on the overall nutritional and growth parameters in Wistar rats

The data concern the combined effect of diversified Zn(II) content in the diet and Cr(III) supplementation on the overall nutritional (food intake, feeding efficiency ratio, body mass gain) and growth parameters (final body weight, BMI, Lee index, absolute and relative organ masses) of Wistar rats. The in vivo experiment was conducted on Wistar rats randomly assigned to 6 experimental groups with different dietary Zn levels (deficient D, recommended K, excess N) and at the same time supplemented with Cr(III) at doses of 1 and 50 mg/kg for 6 weeks. The study adhered to strict ethical standards for animal research and was approved by the Local Ethical Committee in Poznań, Poland (No. 48/2018).