energy drinks have become a popular beverage worldwide. The global market for energy drink has gained momentum in the past decade, and demand is increasing every year. The objective of this study was to evaluate the microbiological quality and safety of commercial energy drinks available in the local stores in Saudi Arabia. Total bacterial count, coliform,  Escherichia   coli, Salmonella   , and  Staphylococcus aureus   were included in this analysis. Out of a total of 20 tested energy drinks, microbial con- tamination was present in only two products. Microbial levels of the total bacterial count for most of the samples were very  low (< 1.0 log CFU/ml). The initial biochemical analysis from these two samples indicated the presence ofBacillus   which is   common spoilage bacteria in soft drinks showed bacterial contamination. In addition, we also tested the impact of energy drinks on beneficial microorganisms (Bifidobacterium   and  Lactobacillus  spp). We found that in all tested energy drinks bacte  -  rial population decreased by at least 4.0 log CFU/ml indicating the negative effects of drinks on the survival of beneficial  microorganisms. Our findings suggested that safety improvements are needed in these energy drinks. Moreover, consumers  also need to be educated regarding the impact of various ingredients, their safety, and recommendation regarding the use of  these drinks. This will help to ensure safe products available for today’s savvy, health-conscious consumer. Thus, the proposed  methodology could be useful for quality and safety control purposes in the energy drinks industry.