Many vegetables contain sodium nitrate, a small percentage of which converts to sodium nitrite after you eat it. Sodium nitrite can form nitrosamines, a potential cancer-causing agent, in the intestines. But vegetables also contain antioxidants that prevent the formation of nitrosaomines.
Education and Qualifications. To become a dental hygienist, you'll need either a 2- or 4-year degree in dental hygiene. Most programs are two years long and lead to an associate's degree.They are offered through community colleges and technical colleges.Your coursework will include classes such as the following: 1  Anatomy and Physiology.o become a dental hygienist, you'll need either a 2- or 4-year degree in dental hygiene. Most programs are two years long and lead to an associate's degree. They are offered through community colleges and technical colleges. Your coursework will include classes such as the following: 1  Anatomy and Physiology.
To become a dental hygienist, you will need at least an associateâs degree in dental hygiene and a license to practice in your state. A bachelorâs degree in science is a good foundation for a dental hygienist, especially if she is ultimately interested in going on to dental school to become a dentist.