My parents were hippies and we grew/raised most of our food when I was a kid. But my grandparents had embraced the new space-age diet: margarine in place of butter, tang instead of orange juice, kraft instead of cheese, etc. I thought it tasted awful compared to real food.
As we have found out, some food choices like trans fats have an impact on health. There's really too much noise in the nutrition related data to draw wide ranging conclusions. But buyer beware.
For me I think the safest option is the "whole foods" (Polan) route. For me it would be "eat what your grand-grand parents ate". I was even a vegetarian and eating fake-meats and then realized I was just eating chemicals. So I started eating meat again.
Edit: Changed wording on first sentence
You do realize that everything you eat is chemicals, right?
In other words, are you eating processed cheese for the protein, or for the potassium sorbate? Only one of these is a "chemical" is the vernacular.
The vernacular is wrong in this case and encourages ignorance. "Preservatives", "dyes", "perfumes", "thickeners", and "artificial sweeteners" are all words that everyone understands. We can say "artificial ingredients" instead if we want a catch all. The English language is really expressive.
"Chemicals" is a buzzword used a lot by hucksters to push sales through pseudoscience. We must demand better and more specific reasoning than "chemicals" if we want the words "shown by science" to be meaningful as well.
Edit: This seems to be your argument, that engineered is the same as non-engineered. Because they are all the same basic building blocks. Right?
When I hear hucksters marketing organic, GMO, or Soylent. I'm always cautious. Caveat emptor.
Edit: I'm not anti-GMO. Nor the concept of Soylent. But I use a headset rather than hold my phone up to my head. Even though there's no definitive proof we can get cancer from smart phones. I just think there is additional risk here.
Edit: Also, your "chemicals" point is like arguing that Global Warming doesn't exist because it's snowing today. It's true, but not relevant to the discussion.
Quibbling aside, health in general was certainly much worse in our great-grandparents' days, but for those who weren't straight up underfed, nutrition was probably not worse. I'm not sure it was as magically better as some would have you believe, but there is decent evidence that traditional diets were more-or-less fine, and that the modern diet has something wrong with it.
Edit: Sorry, misread. All I know is my great grandfather was a pony express rider and got colon cancer
Not possible, unfortunately. Meat and vegetables are so totally different now. For example meats are raised on GM corn and antibiotics, altering their balance of omega 3's, impact on gut health, and other things. While today's vegetables are massively decremented in micronutrients- and may have less arsenic-based pesticide residue than your greatgrandparents', but more of other pesticides.
And if you can't because of where you live, there's a good chance neither could your grandparents had if they lived there as well.
There's such a gap between Soylent and something like Wendell Berry's ideas:
https://www.ecoliteracy.org/article/wendell-berry-pleasures-...
People do mention that in relation to Soylent, encouragingly (whether it's altogether right or not). Historical perspective is very important.
My wife raises our livestock and garden while I work. Yesterday I had a sandwich and I know where every ingredient came from(our yard). Look, it's not impossible. It just requires you to look outside of your modern context.
And refrain from "food" that comes with a version number. But that's just me.
File under "false dichotomy".
For everyone else, I just want to add that there is a place for things like Soylent, beyond the marketing. We're most likely not going to be able to continue our current method producing food cheaply. I could be wrong but things like Soylent will probably be the future that mitigates this issue for a lot of people.
Edit: because cancer is complex, the same a food and nutrition
Things like Soylent are already here. It's not vaporware. Yes it's not perfect or ideal but it's an answer to really inefficient food production whose water and nutrient needs aren't sustainable for a growing population.
But, is it? The ingredients include oats, grapeseed oil, soy derivates, and whey. I'm sincerely having trouble seeing how this represents more efficient food production.
In fact, it would seem to be less efficient from that perspective: it still requires the resources for crops/farming, derives isolates from foods that are otherwise more whole (what happens to the rest?), then adds a degree of processing that requires still more resources.
Isn't it more efficient to just eat whole foods rather than extracts from various foods that, by definition, require energy/processing to obtain and must leave some waste in the process?
Maybe it's more convenient from the consumer's perspective, but I don't see how it solves the production problems you suggest.
I'm not telling you to not eat Soylent or that it won't potentially be great for the human race. But again, we don't know.
Edit: fixed wording Edit: What if they get something wrong like including trans fats? I know this a "playing to fear" argument, but there is a long history of industrial foods being not healthy. It just takes a new generation of suckers to come of age.