Eating healthfully is one of the "secrets" of health and vitality. There are others, good sleep, loving relationships, balanced and dynamic movement of the body. I don't know if any of the "secrets" to health and vitality are more important than the others, but I do know eating healthfully is, let's say, a bit more of a mystery or point of contention than some of the others. Good quality of sleep for example...most will agree that good sleep is one of the more important aspects of health and vitality. The various aspects that induce the best health may all be equal, but even if so many of us will be less informed on one in particular.
Meanwhile, the foods we eat have become a huge point of contention for those of us who are interested in optimal health, vitality, and longevity. It is fair to say however this group is for the most part considerably healthier than those who pay little to no attention to quality of food and diet. The obesity rate in the US is the clear marker of this unfortunate state of affairs.
So then, what are these "secrets" of healthy eating? I may not know them all myself, but I will do my best to identify them.
One of them is "easy to digest". This may not sound like a big deal, but in fact is huge. Now, ice cream is easy to digest, but is also lacking in nutrients, so another qualifier of healthy eating is "high in nutrition". Easy to digest and high in nutrition means we are using less energy to aquire our nutrition. More "miles per gallon", we might say, on some level it's all about efficiency.
Let's also say if we tried to live on a diet of pills we wouldn't get very far, so then it becomes obvious that "real food" is the critically important element.
Then let's also seperate the junk from the real, the primary distinction being non-fractionated "whole" foods that arrive to our tables and bodies in as close to their natural state as possible.
One problem however is whole foods may not taste as good when they are not "seasoned" with highly palatable substances that create a dopamine cascade in the brain. It's not unusual to hear some people refer to health destructive and addictive drugs as "dope", a slang term for toxins that make us feel better in the short term, and worse over the long term.
So then one of the conditions that reduces optimal health is "over seasoning" our food, which then creates a pleasurable dopamine cascade in our brain, which reduces the power and efficacy of whole foods. It's a bit odd that we post industrial humans have come to the point we do not necessarily realize the whole fresh unprocessed foods we are biologically adapted to are those that are maximally effective in creating health.
"Frankenfoods", even over seasoned foods, are a mostly unrecognized problem that is highly profitable, for pretty much the same reason drugs are highly profitable...the dopamine cascade in the brain. Restaurants that serve up overly stimulating calories, which is most of them, are to some significant degree responsible for the health destructive obesity problem in the post industrial world.
Food as a drug? Sure, it can be. It's probably safe to say most of obesity is down to this problem, and food as a drug is a mostly invisible problem.
Table salt is toxic, a primary contributor to the various cardiovascular diseases that kill most of us prematurely.
Another drug masquerading as food is table sugar...100% calories, zero nutrition. (Eat whole fruits, they are real food, and are nutritious, delicious, and quell the refined sugar addiction.)
Another problem hiding in plain sight is refined fats, which we know as vegetable oils, and 100% calories but zero nutrition, and a major contributor to obesity. We don't even know these empty calories are in most foods, and dangerous. After all, they are tasteless. They are also the other major contributor to premature death in the US.
If refined oils in foods are so destructive to health why are they there to begin with? They make cooking highly palatable substances easier.
So the primary secret to healthful eating is to know the overstimulation of our brain and body with toxic substances is a template unique to post-industrial humans. And then endeavor to adapt to real foods that are non-fractionated and whole. They may not stimulate the taste buds quite as much at first, but as we adapt we will recognize that we feel better, and healthier.
As I've done many times in this blog on health, I will recommend a book that has helped many understand the "food as a drug" problem: