What food/nutrient can cause oral cancer?

please include the details and website if possible

Food items and taking nutrient can not cause oral cancer.

An early indication of oral and throat cancer is one or more changes in the way the soft tissues of your mouth usually look or feel. Signs and symptoms may include:

* A sore in your mouth that doesn't heal or increases in size
* Persistent pain in your mouth
* Lumps or white, red or dark patches inside your mouth
* Thickening of your cheek
* Difficulty chewing or swallowing or moving your tongue
* Difficulty moving your jaw, or swelling or pain in your jaw
* Soreness in your throat or feeling that something is caught in your throat
* Pain around your teeth, or loosening of your teeth
* Numbness of your tongue or elsewhere in your mouth
* Changes in your voice
* A lump in your neck
* Bad breath

Most oral cancers arise on the lips, tongue or on the floor of the mouth. They also may occur inside your cheeks, on your gums or on the roof of your mouth.

Oral and throat cancer appears to occur as a result of damage to the DNA in the cells in your mouth and throat. Using TOBACCO and excessive ALCOHOL consumption can damage these tissues. The combination of smoking or chewing tobacco and excessive drinking creates a much higher risk of oral and throat cancer. Excessive exposure to ultraviolet light also can cause damage. Damage to cells may cause them to malfunction and mutate into cancer cells.-