The article deals with the questions of increase in prices of selected food products in the view of the senior demographic category of consumers receiving retirement pensions. There has been carried out a price analysis of selected food products for the time series 2010 ‒ 2019, in which there were detected individual development trends. There has been carried out an analysis of incomes of the retired in the Czech Republic within the same time series. There were studied connections between the analysed variables for the last ten years. For each variable there was found an appropriate trend function, favourably copying the price development in time. Furthermore, there were made regression and correlation analyses for the dependent variable "retirement pension amount" which discovered a high correlation coefficient, uniquely proving a strong linear dependence and linear increasing trend (r = 0.946). The article is highlighting the real decrease in purchasing power of the target group of product consumers.