Among the many elements JMeter offers for creating test scenarios, the ForEach loop stands out as an efficient way of browsing and processing data. The ForEach loop in JMeter is a controller that allows you to cycle through the elements of a list or variable, executing the test samples included in the loop for each element iteratively. This is particularly useful when you need to perform tests with dynamic data, or when you want to repeat a sequence of samples for different values.