Tobacco use. Smoking is one of the most important risk factors for pancreatic cancer. The risk of getting pancreatic cancer is about twice as high among smokers compared to those who have never smoked. About 20% to 30% of pancreatic cancers are thought to be caused by cigarette smoking.
Silicon dioxide is found naturally in many plants, such as: leafy green vegetables; beets; bell peppers; brown rice; oats; alfalfa; Silicon dioxide is also added to many foods and supplements. As a food additive, it serves as an anticaking agent to avoid clumping. In supplements, itâs used to prevent the various powdered ingredients from sticking together. As with many food additives, consumers often have concerns about silicon dioxide as an additive.
Silica gel is obtained by taking out water from a precipitate of silicic acid.The gel absorbs water (as well as some other substances) and is used to dry and remove the color from objects. 1  Large volumes of silicon occur naturally in silicate minerals and as silicon dioxide, the principal constituent of natural sand. The three most common current deliberate uses of silicon are as glass, in semiconductors, and in silicone polymers. Silica (sand) is the main ingredient of glass, and is also found in the human skeleton. Silica and silicates are also used in the manufacturing of cement, porcelain, glass, and glazes. Silicon, when doped with boron, gallium, phosphorus, or arsenic is used in transistors, integrated circuits, computer chips and solar cells because it is a good semiconductor.