Food engineering has grown to the point where food is treated as "products". Taste, feel and looks are highly engineered to optimize our sensations.
Looks: Marketing of food products use wildly unrelated items (glue to mimic cheese, shoe polish to mimic seared meat) to make the food look appetizing. This sets up for completely unrealistic standards.
Taste: Sugar has been pushed in our diet under different names (dextrose, fructose, corn syrup). Salt has been optimized to excite our senses. But the proportion is carefully controlled to ensure we never feel overwhelmed or saturated with a particular taste.
Feel: Food companies hire the best engineers to optimize surface characteristics to ensure their 'products' has great sound, great texture and so on. Pringles famously worked on double curvature for specific mechanics.
These food companies have created 'products' that are extremely far from nature. They are engineered heavily to maximize profits at the cost of consumers health.
What can you do:
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Read labels: Most countries have food regulatory bodies that require companies to publish their nutrition info. Check the "daily value" information. Check the "serving size". DO NOT TRUST WHAT IS PRINTED ON THE FRONT. The real info is always in the back in a boring black and white table.
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Spread awareness: Companies are betting on the fact that you are too tired, too occupied or too ignorant to care about all this. I understand you may have bigger problems. But always remember that you may have 1000 worries but when you have a health issue you only have 1 worry.
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Reach out: If you struggle with food addiction and over consumption don't struggle alone. This battle cannot be won alone. You are fighting against an army. Join local support groups. Help yourselves to gather allies. If you know know someone who is struggling, reach out and help. Any food that you make at home ( no matter what you make) cannot possibly be as unhealthy as ultra processed crap.
You can download an app called Yuka which will tell you if a food or cosmetic product has anything suspected of being bad for you in it.
The app suggests alternatives but you have to be careful (it suggested a lot of zero-fluoride tooth pastes which would make my teeth rot)
For US consumers, Yuka will tell you if an ingredient is banned in the EU or Australia or regulated there in a different way.
I use a zero fluoride toothpaste, and have no dental caries.
I still believe in science and that fluoride is better at preventing cavities than just the abrasion from the paste.
Unfluoridated toothpaste is a very good idea if you live somewhere with water fluoridation, or naturally high fluoride levels.