How much tobacco must you smoke to get tongue cancer?

Not Known, so Stop!: Tobacco causes cancer. How much and when we don't know. Not only do different people have different body types and differing resistance, but other factors also are important. For example, alcohol consumption also adds to the risk of oral cancer. Don't take a chance, don't use tobacco!

Cumulative: Cumulative. No one knows. Please stop. Not worth the risk.