From the links I provided above:
Ultra Processed People by Chris van Tulleken
In this book, Chris van Tulleken, father, scientist, doctor, and award-winning BBC broadcaster, marshals the latest evidence to show how governments, scientists, and doctors have allowed transnational food companies to create a pandemic of diet-related disease. The solutions don’t lie in willpower, personal responsibility, or exercise. You’ll find no diet plan in this book―but join Chris as he undertakes a powerful self-experiment that made headlines around the world: under the supervision of colleagues at University College London he spent a month eating a diet of 80 percent UPF, typical for many children and adults in the United States. While his body became the subject of scientific scrutiny, he spoke to the world’s leading experts from academia, agriculture, and―most important―the food industry itself.
The Dorito Effect by Mark Schatzer
It’s super tempting to choose a bag of Doritos over an apple for a quick snack. But why is this? Why does pseudo-food take the prize over real, nutritious food that provides us with benefits other than instant taste-bud gratification? It’s all about the flavor.
Real, nutritious and natural food is now largely bred and cultivated for the sake of volume and revenue – but not so much for taste. Things like chicken and tomatoes are grown to maturity as quickly as possible in order to maximize sales, but in the process these foods lose so much of their flavorful potential. In the past, we looked to nature’s already developed and perfected products for sustenance. Now, food companies modify nature in order to turn a profit, and this has a significant impact on its taste. Real food has become increasingly bland, and junk food has all the orange-dusted, finger-lickin’ goodness we now crave!
We reach for the cheese puffs because we know they will satisfy a craving for flavor. The problem is that this (artificial) flavor is a concoction of chemicals that convinces us to eat way more than we should. Ultimately, this is what leads us to rack up the calories and overconsume fats, salts, and sugars.
So, the broad recommendation of both books is just to go back to eating real food, that is, home-cooked, minimally-processed, and preferably organic labeled.
I like Ultra Processed People because the author is a medical doctor and a researcher, so he does a good job of getting into some of the research, but the 30 day diet was mostly a publicity stunt, in my view. That said, here are some outcomes: