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A healthy diet can improve the state of children's teeth.

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        A healthy diet can improve the state of children’s teeth.


        In my investigation I will include:

        - To find out how tooth decay is caused and what the main reasons

           are for it.

        - To put forward a questionnaire on what children mostly eat and


        - Ideas on how children's tooth decay can be avoided. What

          nutrients are important to teeth.

        - To do some practical work on the foods rich in the nutrients

           that are important to teeth.

        - What nutrients are important to teeth.

        - Put forward ideas of what the diets of young children should be


Tooth Decay

        Tooth decay is a wearing away of the tooth enamel. The bacteria from foods containing sugars and carbohydrates are left on the teeth, and over a period of time they destroy the teeth enamel and this results in tooth decay. Tooth decay occurs because each time you eat acid is formed that can eat into your teeth. Saliva can protect against the formation of acid, but only if it doesn't occur that often.

...read more.


  • Children should be encouraged to prevent tooth decay from an early age because a habit will form.
  • They should brush their teeth after every meal to prevent a build up of plaque.
  • Eating foods that protect against caries such as milk and cheese can raise the pH levels in the mouth and therefore protect against decay. If the pH levels in the mouth are raised it will protect the teeth against an acid attack.
  • They should be encouraged to eat foods that are rich in the nutrients required to strengthen the teeth, such as Calcium, Magnesium, Phosphorous and Vitamin C. They should also be made aware of which foods contain the nutrients required for healthy teeth.
  • They should be encouraged to eat foods high in NSP (dietary fibre) because this helps to produce saliva which can prevent a build up of plaque and prevent caries. However, if too much fibre is eaten by young children, the food will pass straight through their digestive system and no nutrients will be absorbed.

Nutrients that help teeth

  • Calcium

...read more.



65-75 Years


65-74 Years


75+ Years


75+ Years




Lactating 1-3 Months


Lactating 4+ Months


  • Magnesium


   - Helps with the formation of bones and teeth

   - Assists with muscle contraction and relaction

   - Assists with transmission of nerve impulses

   - Activates many different enzymes


                  - Sea vegetables (seaweed)

                - Seafood

                  - Green leafy vegetables

                  - Beans

                  - Tofu

                  - Whole grains


                  This ranges from 50 - 400 mgs, depending on your age,  

                   gender and health status.


                     - Heart disease

                - Aching muscles

                - Insomnia

                - Hair loss

  • Phosphorus


- Works alongside calcium to build and maintain strong bones and teeth.

- Helps our bodies convert food into energy.


                     - Dairy products

                 - Egg yolks

                 - Meat, poultry and fish

                   - Beans

                  - Cereals

                    - Nuts

                 - Soft drinks


                        - Bone Pain

                        - Bone and teeth problems

                        - Fatigue

  • Vitamin C


        - Growth and maintenance of bones, teeth, gums, ligaments and blood vessels

        - Wound healing

        - Iron absorption


        - Citrus fruits

        - Strawberries

        - Red/green peppers

        - Broccoli

        - Cabbage

        - Sprouts

        - Tomatoes


        The RDI of vitamin C ranges up to 1000mgs depending on your age, gender and health status.


        - Anaemia

        - Bleeding gums

        - Dental caries

        - Low infection resistance

...read more.

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