The amount of fluoride in the tea depends on the water that you use to make the tea. It is added to water to help prevent tooth decay, but not everyone agrees with this. Amounts vary between communities, bottled waters and well water. These materials are also used to create a number of products that people use every day, such as cosmetics, ceramics, animal food, and soil fertilizer. Men should have 4 milligrams of the mineral each day, while women need approximately 3 milligrams. It is mostly found in potatoes, shellfish, broths, stews, etc. Black Tea. Fluoride in most foods is low, less than 0.5 ppm. Your body needs fluoride to keep your bones strong and to help prevent tooth decay. This mineral is also found in toothpaste or mouthwash that contains added fluoride. Read on to find out where the vast majority of fluoride that you are consuming is coming from. Top 5 Sources of Fluoride: Watch the Video. Other less common routes include inhalation of fluoride in cigarette smoke and industrial emissions and ingestion of other drugs or soil that contain fluoride. Black tea is rich in fluoride. 2.4 How much fluoride can be found in living organisms? In the U.S., the largest source of fluoride is fluoridated water. Besides giving flavor to food, ketchup and tomato sauces are also great sources of fluoride. Fluoride is found naturally in soil, water and food; it also is commonly added to toothpaste, mouthwash, dental gels, fillings, dental floss and water supplies. The lycopene found in these products can prevent the appearance of cancer. If you're more of visual learner, this video has the same information as this post. It’s also added to dental products and some water sources to help strengthen teeth and prevent cavities. Additionally, ketchup and tomato sauces contain vitamin C, a necessary vitamin that makes your immunity stronger. Fluorides tend to accumulate in the exoskeleton or bone tissue of aquatic animals. Fluoride is a mineral that’s found in many places naturally, including your teeth. Find out more. 1. People are exposed to fluoride through a number of routes, but main routes include ingestion of food, water and beverages with fluoride and dental products containing fluoride, like toothpaste and mouthwash. I did a lot of research on this and found that the biggest sources of fluoride are not drinking water and toothpaste. Fluoride is found in many foods and beverages. So, have a look at the foods that are rich in fluoride. Fluoride is found naturally in soil, water, and foods. This fluoride is derived from natural calcium deposits in phosphate rock and then purified. The source document for this Digest states: Fluorides can be taken up by aquatic organisms directly from the water or to a lesser extent via food. 4.