Telegraph: Tomatoes contain the antioxidant called lycopene in high amounts which U.S. scientists have found may prevent the internal scarring caused by the disease.
They found that lycopene cut by up to 90 per cent the chemical activity that leads to the build-up of scar tissue.
Experts say a tomato a day, 8oz of tomato juice,150g of pasta sauce or one lycopene tablet a day is enough to raise levels of lycopene in the blood.
There is no cure for endometriosis and it can damage the fertility of sufferers, who include singer Louise Redknapp and TV presenter Anthea Turner.
The problem arises when cells normally found in the womb lining attach themselves to other parts of the pelvic area, causing scar tissue called adhesions, pain and inflammation.
In a study, adhesive tissues such as those found in endometriosis were treated with lycopene in the laboratory. Lycopene is a nutrient that gives the red colour to tomatoes, watermelon and pink grapefruit.