Interesting, thanks for the info. Yes most meal replacement bars seem to be simply soy-augmented candy bars, however there is of course a practical reason for this: sweet foods sell better.

It might be worth mentioning on your site that your product is more healthy and has less sugar than the alternatives. Another problem is soy protein. Some research hints at soy protein having undesirable hormone-imitating effects: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3074428/ so this could be a selling point as well as I presume you do not use soy protein.