
Fluoride is a trace mineral that is essential for maintaining dental health. It helps prevent tooth decay, builds strong teeth and bones, and strengthens tooth enamel. While the primary source of fluoride is fluoridated water, not everyone has access to it. Fortunately, fluoride is naturally present in small amounts in various foods, including grapes, raisins, apples, strawberries, bananas, peaches, watermelon, cherries, spinach, and potatoes. Seafood, tea, and gelatin are also good sources of fluoride. For those without access to fluoridated water, alternative sources of fluoride include toothpaste, mouth rinses, dietary supplements, and professional dental treatments. It is important to note that excessive fluoride intake during childhood can lead to dental fluorosis, so supervision is necessary to ensure young children do not swallow toothpaste. Consulting with a dentist can help determine the right amount of fluoride for optimal dental health.
| Characteristics | Values |
|---|---|
| Fluoride's role in the body | Prevents tooth decay, builds strong teeth and bones, and strengthens enamel |
| How to add fluoride to your diet | Drink tap water, eat fluoridated food, use toothpaste with fluoride, use mouth rinses with fluoride, take dietary supplements, and receive professional treatments |
| Foods that contain fluoride | Grapes, raisins, wine, grape juice, apples, strawberries, bananas, peaches, watermelon, cherries, spinach, and potatoes |
| Adequate Intake (AI) | 4 mg a day for men, 3 mg for women, and 3 mg for pregnant or lactating women |
| Tolerable Upper Intake Level (UL) | 10 mg daily for adults 19+ years and pregnant and lactating women |
| Precautions | Do not use fluoride toothpaste in infants younger than 2 years, use a smear of fluoride toothpaste for children under three years old, use a pea-sized amount for those aged 3 to 6, and avoid fluoride mouth rinses in children younger than 6 years |
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What You'll Learn
- Eat foods rich in fluoride, like grapes, raisins, spinach and potatoes
- Drink tap water, tea, coffee, or juice made with tap water
- Use a fluoride toothpaste, but supervise young children
- Consult your dentist about dental products and foods with fluoride
- Fluoride supplements can be used, but avoid overuse

Eat foods rich in fluoride, like grapes, raisins, spinach and potatoes
Fluoride is a mineral that helps to strengthen teeth and prevent cavities. It is added to public water supplies in some countries, including the United States. The amount of fluoride you need depends on your body mass—children typically require 0.5 mg per day, while adults need 3-4 mg.
One way to add fluoride to your diet is by consuming grapes, raisins, spinach, and potatoes, all of which are rich in this mineral. Grapes, raisins, grape juice, and wine are all good sources of fluoride. However, it is important to note that fruit juice is high in sugar, which can harm teeth. Therefore, while these grape products are a good source of fluoride, they should be consumed in moderation as part of a balanced diet.
Spinach is another vegetable that contains fluoride. It can be easily incorporated into your diet through salads, smoothies, or cooked dishes. Similarly, potatoes are a good source of fluoride. You can prepare them in a variety of ways, such as baking, boiling, or frying, to include them in your meals.
In addition to these specific foods, you can also consume tea, coffee, and shellfish, all of which are considered healthy sources of fluoride. However, it is important to be mindful of the other ingredients or additives that may be included in these foods and drinks. For example, while tea and coffee are good sources of fluoride, the amount of fluoride they contain will depend on the levels in the water used to prepare them. Commercial teas may contain fluoride, but sugary or carbonated drinks can lead to tooth decay due to their sugar content.
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Drink tap water, tea, coffee, or juice made with tap water
Fluoride is a trace mineral that is naturally found in small amounts in a variety of foods. It is most recognized for its role in preventing and reversing dental cavities and building strong teeth and bones. Fluoride is now used in the public drinking water supplied to about 3 out of 4 Americans. The decision to add fluoride to drinking water is made at the state or local level. Fluoridated water is found in most community water systems. Well water often does not contain enough fluoride to prevent tooth decay.
Drinking tap water is a simple way to add fluoride to your diet. The U.S. Environmental Protection Agency (EPA) recommends that drinking water contain between 0.7 and 2.0 milligrams of fluoride per liter of water (mg/L) to reliably prevent cavities. If your drinking water contains less than 0.7 mg/L, speak to your dentist or doctor about whether you could benefit from other fluoride products. Fluoridated water keeps a low level of fluoride in the mouth all day, which helps to prevent cavities.
If you prefer to drink bottled water, check the label to see if it contains fluoride. Bottled water may come from a public water system that adds fluoride, or it may come from springs or aquifers where fluoride is naturally present. Bottled water that is labelled as de-ionized, purified, demineralized, or distilled contains no or only trace amounts of fluoride, unless it specifically lists fluoride as an added ingredient.
In addition to drinking tap water, you can also use it to make tea, coffee, or juice to increase your fluoride intake. Food prepared in fluoridated water will contain fluoride. Tea, in particular, contains fluoride, so drinking tea made with tap water is a great way to add fluoride to your diet.
It is important to note that too much fluoride can lead to dental fluorosis, especially in children. This condition only develops in children while their teeth are developing under the gums, usually up to about age 8. If your drinking water contains more than 2.0 mg/L of fluoride, consider using a filter that removes fluoride from water used for drinking or cooking. Speak to your healthcare provider to determine the appropriate amount of fluoride for you and your family.
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Use a fluoride toothpaste, but supervise young children
Fluoride is a mineral that is naturally found in water, soil, and air. It is recognised for its role in preventing and reversing dental caries, and building strong teeth and bones. Fluoride toothpaste is recommended by most dentists, but some people have concerns about its safety. It is important to supervise young children when they are brushing their teeth and to ensure they do not swallow toothpaste. Excessive intake of fluoride can lead to fluorosis, a cosmetic defect in the tooth enamel.
Children can start using fluoride toothpaste as soon as they get their first tooth. Parents should choose an age-appropriate toothpaste and use no more than the recommended amount. The American Academy of Pediatrics recommends using a pea-sized amount of fluoride toothpaste for children aged 3 to 6. This can be increased from a small amount for younger children, as they may not yet have the ability to spit it out. It is important to supervise children under 6 when they are brushing their teeth, as they may need help to brush properly and for long enough.
It is safe for children to swallow a pea-sized amount of fluoride toothpaste. However, swallowing larger amounts may cause an upset stomach. If this happens, it is recommended to give the child milk or other dairy products, as calcium binds to fluoride in the stomach. It is also important to keep toothpaste out of the reach of young children, to avoid accidental ingestion.
Fluoride toothpaste is safe for older children with fully developed spit and swallow reflexes, and adults. While it is normal for some toothpaste to slide down the throat occasionally, it should not be swallowed. Long-term exposure to excessive amounts of fluoride can lead to health issues, including an increased risk of bone fractures.
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Consult your dentist about dental products and foods with fluoride
Fluoride is a trace mineral that helps prevent and reverse dental caries, as well as building strong teeth and bones. It is naturally found in small amounts in a variety of foods and water, and it can also be added to water supplies.
The American Dental Association recommends the fluoridation of community water systems, and bottled water suppliers can provide information on fluoride concentration in their products. Tap water is a common source of fluoride, and it can be included in your diet through drinking or using it to make tea or coffee.
Fluoride toothpaste and mouthwash are also readily available over the counter, with stronger concentrations requiring a prescription. Fluoride gel, foam, or varnish can be applied by a dentist or dental hygienist during a routine dental exam or cleaning. These products are safe for use in both adults and children, and they help to strengthen tooth enamel and reduce the risk of cavities.
It is important to consult your dentist about the right dental products and foods with fluoride to ensure you are getting adequate fluoride intake. They can provide product recommendations and advise on how often you should receive fluoride treatments. Dentists can also address any concerns about fluoride-induced tooth discoloration (fluorosis) and suggest suitable treatments.
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Fluoride supplements can be used, but avoid overuse
Fluoride is a trace mineral that is naturally found in small amounts in a variety of foods. It is most recognised for its role in preventing and reversing dental caries and building strong teeth and bones. Fluoride supplements can be used to help prevent tooth decay and cavities, especially in areas where water fluoridation is not available. These supplements come in the form of tablets, drops, lozenges, chewing gums, or liquids.
However, it is important to note that the use of fluoride supplements should be approached with caution. While fluoride is beneficial for dental health, too much fluoride can have adverse effects. The Tolerable Upper Intake Level (UL) for fluoride for adults aged 19 years and above, including pregnant and lactating women, is 10 mg daily. This is the maximum daily intake that is unlikely to cause harmful effects on health.
It is recommended to consult with a healthcare provider before taking any fluoride supplements to ensure they are appropriate for your individual needs. This is especially important for infants and children, as they may be more susceptible to the effects of excess fluoride. Breast milk has a negligible amount of fluoride, so infants may require formula that contains fluoride. However, too much fluoride before an infant's teeth have broken through the gums can cause changes in the enamel, resulting in faint white lines or streaks.
Additionally, it is worth noting that the effectiveness of fluoride supplements may be limited in children who regularly use fluoride toothpaste. The regular use of topical fluorides may reduce the impact of fluoride supplements. As always, it is important to practice moderation and consult with healthcare professionals to ensure that any supplements are used safely and effectively.
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Frequently asked questions
Fluoride is a mineral that can be found in grapes, raisins, apples, strawberries, bananas, peaches, watermelon, cherries, spinach, and potatoes. It is also present in seafood, tea, and gelatin.
There is no Recommended Dietary Allowance for fluoride as nutritional requirements have not been established. However, adequate intakes (AI) for adults 19 and older are 4 mg per day for men and 3 mg for women. The AI for pregnant or lactating women is 3 mg.
Excessive fluoride intake can lead to dental fluorosis, which appears as white spots or streaks on the teeth. However, this condition is usually mild and does not affect dental function.
Alternative sources of fluoride include toothpaste, mouth rinses, dietary supplements, and certain foods and beverages. It is important to consult with a dental professional to determine the appropriate sources and amounts of fluoride for your specific needs.
Fluoride is well-known for its dental health benefits. It helps prevent tooth decay, strengthens tooth enamel, and reduces cavities. According to the Centers for Disease Control and Prevention (CDC), community water fluoridation can also lead to reduced dental treatment costs.











































