Data of analysis the combined effect of diversified Zn(II) content in the diet and Cr(III) supplementation on the organ’s distribution of selected macroelements in Wistar rats

The data concern the combined effect of diversified Zn(II) content in the diet and Cr(III) supplementation on the content of macroelements such as Ca, Mg, P, K, and Na in the organs and tissues of Wistar rats (male and female). The in vivo experiment was conducted on Wistar rats randomly assigned to 6 experimental groups with different Zn dietary levels (deficient D, recommended K, excess N) and simultaneous supplementation 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). The following methods were used in the study: microwave digestion, atomic absorption spectrometry (AAS) for Ca and Mg, atomic emission spectroscopy (AES) for K and Na, and the spectrometric method for P.