I've lived in California for a couple of years a couple of years ago, and have certainly seen Proposition 65 warnings all over the place, from the common grounds of apartment complexes, to fast food chains and perhaps even Starbucks (roasted coffee beans have chemicals known to the State of California to cause cancer and birth defects!).
However, where I've never seen it are any of the sushi restaurants, or within the grocery section of any shops, big or small.
Soylent's California Proposition 65 article, however, is probably the first ever time I see a Proposition 65 warning applied to an actual food item "at a supermarket" (a small virtual one, but nonetheless), or any food item other than the fried/roasted products by the big fast food chains.
Is Rosa Labs / Soylent just making fun of Proposition 65 and their home State of California? Or are they really legally required to produce such warning indeed?
As per their references of an FDA study, does it imply that all grocery stores and sushi places are in violation? Not to mention basically every restaurant that sells coffee, fish, fried or grilled items?