Here, changes in the leaf mineral composition of broccoli (Brassica oleracea L. var. italica Plenck) plants in response to single and interactive two-week salt (0, 30, 60 and 90 mM NaCl) exposure and cultivar (cvs. Parthenon and Naxos) factors were studied, as well as their correlations with individual glucosinolates (GSLs), vitamin C and total anthocyanins. Results showed significant differences in micro- (Fe²⁺, Cu²⁺, Zn²⁺, Mn²⁺ and B³⁺) and macroelements (S, N, C, NH₄⁺) contents regarding the studied factors and/or their interaction. Salinity effects on individual GSLs showed contradictor behaviours between both cultivars, being the increase in aliphatics in Parthenon negatively correlated with Mn²⁺ ions, while the decrease in indolics in Naxos related positively with N and N/S ratio and negatively with NH₄⁺ content (P<0.01). Interestingly, only in cv. Naxos all bioactive compounds displayed a strong relationship with Zn²⁺ ions, majorly negative. Stress intensity-dependant reductions in vitamin C and total anthocyanin levels in both cultivars were caused by differential endogenous NH₄⁺ ions accumulation, reflecting co-participation of these compounds in the leaf antioxidant capacity. Overall, in salt-affected lands, a clear genotypic dependence of broccoli plants regarding endogenous leaf minerals was recorded, influencing individual GSLs, vitamin C and total anthocyanin profiles.