Shares of high fructose corn syrup producer Archer-Daniels-Midlan fell on Thursday after President Donald Trump announced that he had persuaded Coca-Cola to use real cane sugar in its drinks in the U.S. “I have been speaking to Coca-Cola about using REAL Cane Sugar in Coke in the United States, and they have agreed to do so. I’d like to thank all of those in authority at Coca-Cola,” the president wrote in a Truth Social post published Wednesday. “This will be a very good move by them — You’ll see. It’s just better!” Trump also wrote. ADM shares were last down 2%. But the stock tumbled as much as 6% in the premarket on the comments. Global ingredients provider Ingredion shares were recently 2% lower, but that stock fell as much as 7% before the market’s open.