I stopped buying orange juice several years ago because all the national brands have switched to low fructose oranges that have almost no sweetness and taste slightly acidic and slightly bitter.
I'm about to give up on Mountain High yogurt, which is now owned by General Mills. I have bought their high fat original Vanilla yogurt since the 1970s. But, recently they decided to cut back on how much cane sugar they add, and their trademark brand literally has no taste at all anymore.
I used to buy several national brands of excellent canned peas, but they have cut back on salt and now use lower carbohydrate peas, which means unpleasant texture and unpleasant taste.
I used to be a huge consumer of expensive bread, which I would toast and lather with Shedds Spread (Country Crock). Now, all the best bread brands brag about having no high fructose corn syrup, and Shedds Spread brags about having massively lowered its fat content.
Every one of those products has lost display space and display prominence in major food stores - partly because of false health claims, and partly because loyal consumers like me have given up buying them.
Bottom Line - an average person who maintains a healthy body weight and engages in physical activity every day does not need to worry about carbs, sugars, and dietary fats.
You forgot the most important part. When food companies change things for the “better,” the “improvements” become a green light for them to raise prices. I know it’s fast food, but Arby’s is a great example. Every time they introduce a new sandwich, they come with a high price tag but also price increases across the entire menu. I a few months, the new sandwich will most likely be no longer offered, but the price increases stay.