Read our Privacy noticeSweetener and ingredients firm Tate & Lyle has warned over falling full-year sales and earnings after seeing a slowdown in market demand. Shares in the FTSE 250 listed company slumped by more than 10% in morning trading on Wednesday after the profit alert, as the firm said it now expects revenues and underlying earnings to fall by a “low single-digit per cent” in the year to March 31. It had previously forecast revenue growth at, or slightly below, the bottom of its range of between 4% and 6%, while underlying earnings growth was expected ahead of sales. In the Americas, it is forecasting revenues to be slightly lower, reflecting softer consumer demand. “This will be driven by the actions we are taking to drive top-line growth and the increasing benefits from the CP Kelco combination,” it said.