Abstract: The invention relates to the use of tomatoes for inhibition, amelioration or prevention of adipogenesis mediated diseases such as obesity, lipid storage disease and hyperlipemia. Provided is a tomato plant, fruit, fragment or extract thereof for use in a method for preventing weight gain, and/or inhibiting, preventing or ameliorating a disease condition associated with adipogenesis in a mammal, wherein the tomato is a ripening-impaired mutant tomato, such as a ripening inhibitor (rin), nonripening (nor), and/or never ripe (Nr) gene mutant tomato. Also provided are anti-adipogenic extracts and compositions comprising the extract.