This claim is absolutely true. Not only is this a blog written by a prominent university professor, there are official data linked in this article that makes the claim even more credible. There are also other well researched sources like this podcast about this issue that I believe is not talked about enough. The U.S. has higher consumption of ultra-processed foods (70% for kids), compared to countries like France and Japan. In the podcast, they talk about how ultra-processed foods are described as "addiction instruments" created by the cigarette industry. Ultimately, the weaponization of food in the US is very serious and not many people are aware of the food they are consuming. The food created was not aimed at health but at maximizing addiction and profitability.