The present invention provides a tomato-derived thickening agent, said agent being characterized in that, on a dry N weight basis, it contains: 0.1-3 wt. % of lycopene; 14-34 wt. % of protein; 11-35 wt. % of pectin; 17-39 wt. % of sugars selected from fructose, glucose, and combinations thereof. The invention further relates to a process for preparing a tomato-derived thick-ening agent and to the use of such a thickening agent in food products such as tomato ketchup, tomato-based sauces, pizza sauce, tomato soup and tomato juice.