Looking over the ingredients on the links you gave I would take Erin’s. There is an ingredient in Clif labeled “natural flavors” that sounds really innocent but can honestly be a bit deceptive.
*Gary Reineccius, a professor in the department of food science and nutrition at the University of Minnesota says “The distinction in flavorings–natural versus artificial–comes from the source of these identical chemicals and may be likened to saying that an apple sold in a gas station is artificial and one sold from a fruit stand is natural.” He also says, “Artificial flavorings are simpler in composition and potentially safer because only safety-tested components are utilized. Another difference between natural and artificial flavorings is cost. The search for “natural” sources of chemicals often requires that a manufacturer go to great lengths to obtain a given chemical…. Furthermore, the process is costly. This pure natural chemical is identical to the version made in an organic chemist’s laboratory, yet it is much more expensive than the synthetic alternative. Consumers pay a lot for natural flavorings. But these are in fact no better in quality, nor are they safer, than their cost-effective artificial counterparts.” *
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http://archive.supermarketguru.com/page.cfm/6046
Since I’m a vegetarian I always avoid that because “natural” can mean creatures.
