The evidence against additives keeps mounting up. I'm very glad I take the stance I do against additives and adulteration of whole foods, because if just one person more starts reading and taking note of the labels of the foods they eat, I consider that a victory and am glad to have given one more person a chance at healthy life.
In The Body Friendly Zen Cookbook, I think I made that point, and at the risk of saying it again - it takes our bodies hundreds of generations to adjust to new foods. Even if the human species is evolving at a faster and faster rate, it's not going to be possible for YOU personally to "evolve" to adapt to additives and preservatives and other crap in your food.
Personally, I check every tin, every packet, and every sachet the first time I encounter it during shopping, and if the ingredients aren't listed or the list is made hard to figure out, or if the list looks like a chemistry experiment in progress, it goes on my ignore list. If you're at all concerned about your health and the health of your family, you'll do the same.
The best way to survive the next few decades will be to eat minimally processed whole foods, cook the food yourself, and remember that what our ancestors were eating 7,000 to 12,000 years ago is what we are just becoming adapted to now...