While sodium nitrate is generally recognized as safe in regulated amounts, excessive consumption can lead to health concerns. When ingested, sodium nitrate can be converted into nitrite by bacteria in the digestive system. Nitrites can then react with amines in the body to form nitrosamines, which are potent carcinogens. This has raised concerns about the potential link between high sodium nitrate intake and an increased risk of certain cancers, particularly gastrointestinal cancers.