Some pyschologists suggests that too many choices can negatively impact our health. But a meta-analysis of 50 published and unpublished experiments that investigated choice overload  found that consumers generally respond positively to having many choices.

Across the 50 experiments, which depict the choices of 5,036 individual participants, the authors found that the overall effect of choice overload was virtually zero. "This suggests that adverse consequences do not necessarily follow from increases in the number of options," the authors write. "In fact, contrary to the notion of choice overload, these results suggest that having many options to choose from will, on average, not lead to a decrease in satisfaction or motivation to make a choice."

"A number of studies in the past found strong instances of choice overload based on experiments in laboratories and in the field. While these results attracted a lot of attention in academia as well as in the media, a number of experiments found no empirical evidence for
choice overload and sometimes even found that more choices instead facilitate choice and increase satisfaction," the team explains.

When it comes to food consumption, for example, the authors believe their meta-analysis shows that a "more-is-better" effect occurs, especially when individuals have clear prior preferences.

While a number of experiments in the past did find that choice overload exists, the authors found that it was difficult to replicate those conditions.

"Based on our meta-analysis data, we could not identify sufficient conditions or specific circumstances that explain when and why an increase in assortment size can be expected to reliably decrease satisfaction, preference strength, or the motivation to choose," the authors conclude.

Citation: Benjamin Schiebehenne, Rainer Greifeneder, Peter M. Todd, 'Can There Ever Be Too Many Options? A Meta-Analytic Review of Choice Overload', Journal of Consumer Research, August 2010; doi: 10.1086/651235