Fluoride and aluminum in teas and tea-based beverages
Rev. saúde pública
;
38(1): 100-105, fev. 2004. tab
Article
in English
| LILACS
| ID: lil-352550
RESUMO
OBJECTIVE:
To evaluate fluoride and aluminum concentration in herbal, black, ready-to-drink, and imported teas available in Brazil considering the risks fluoride and aluminum pose to oral and general health, respectively.METHODS:
One-hundred and seventy-seven samples of herbal and black tea, 11 types of imported tea and 21 samples of ready-to-drink tea were divided into four groups I-herbal tea; II-Brazilian black tea (Camellia sinensis); III-imported tea (Camellia sinensis); IV-ready-to-drink tea-based beverages. Fluoride and aluminum were analyzed using ion-selective electrode and atomic absorption, respectively.RESULTS:
Fluoride and aluminum levels in herbal teas were very low, but high amounts were found in black and ready-to-drink teas. Aluminum found in all samples analyzed can be considered safe to general health. However, considering 0.07 mg F/kg/day as the upper limit of fluoride intake with regard to undesirable dental fluorosis, some teas exceed the daily intake limit for children.CONCLUSIONS:
Brazilian and imported teas made from Camellia sinensis as well as some tea-based beverages are sources of significant amounts of fluoride, and their intake may increase the risk of developing dental fluorosis.
Full text:
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Index:
LILACS (Americas)
Main subject:
Beverages
/
Aluminum
/
Fluorine
/
Fluorosis, Dental
Language:
English
Journal:
Rev. saúde pública
Journal subject:
Public Health
Year:
2004
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual de Campinas/BR
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