[yaddayadda]

>Due to U.S. food regulations, the exact makeup of the artificial flavors used in Soylent versions 1.0 - 1.3 were proprietary and not made available for our examination.

I understand proprietary formulas wouldn't be made public, but they start off stating "Due to U.S. food regulations..." What food regulations would prevent ingredients being shared?

[orionsbelt]

If I had to guess, they were buying the flavoring from a third party, and the third party refused to disclose what was in their product to Soylent. In the U.S., for certain items all you have to disclose is either "Natural Flavors" or "Artificial Flavors". So it's not that food regulations prevent the ingredients from being shared, it's that they don't force you to share.