Evidence map›Paper›PMID 32740848›Full record

ArticleEnvironmental science and pollution research international2020

Human exposure to fluoride from tea (Camellia sinensis) in a volcanic region-Canary Islands, Spain.

Inmaculada Rodríguez, Antonio Burgos, Carmen Rubio, Angel J Gutiérrez, Soraya Paz, Flavio M Rodrigues da Silva Júnior, Arturo Hardisson, Consuelo Revert

Abstract read
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Article in Environmental science and pollution research international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Soft Drinks as a Dietary Source of Fluoride Exposure.Biological trace element research · 2024
    Article
  2. Article
  3. Public-health risks from tea drinking: Fluoride exposure.Scandinavian journal of public health · 2022
    Article
  4. A Benchmark Dose Analysis for Maternal Pregnancy Urine-Fluoride and IQ in Children.Risk analysis : an official publication of the Society for Risk Analysis · 2022
    Article
  5. Article
  6. Article
  7. Evidence-based complementary and alternative medicine : eCAM · 2021
    Review
  8. A Benchmark Dose Analysis for Maternal Pregnancy Urine-Fluoride and IQ in Children.medRxiv : the preprint server for health sciences · 2020
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Inmaculada RodríguezDepartment of Legal Medicine, Universidad de La Laguna, 38071, La Laguna, Tenerife, Canary Islands, Spain.
Antonio BurgosDepartment of Preventive Medicine and Public Health, Universidad de La Laguna, 38071, La Laguna, Tenerife, Canary Islands, Spain.
Carmen RubioDepartment of Toxicology, Universidad de La Laguna, 38071, La Laguna, Tenerife, Canary Islands, Spain.
Angel J GutiérrezDepartment of Toxicology, Universidad de La Laguna, 38071, La Laguna, Tenerife, Canary Islands, Spain.
Soraya PazDepartment of Toxicology, Universidad de La Laguna, 38071, La Laguna, Tenerife, Canary Islands, Spain. spazmont@ull.edu.es.ORCID http://orcid.org/0000-0003-0878-7138
Flavio M Rodrigues da Silva JúniorInstituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, 96203-900, Brazil.
Arturo HardissonDepartment of Toxicology, Universidad de La Laguna, 38071, La Laguna, Tenerife, Canary Islands, Spain.
Consuelo RevertDepartment for Physical Medicine and Pharmacology, Universidad de La Laguna, 38071, La Laguna, Tenerife, Canary Islands, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fluoride is highly present in the environment, especially in water and its derivatives. Excessive fluoride contribution to diet poses a health risk. Tea leaves accumulate fluoride and the consumption of tea (Camellia sinensis) could pose a risk to human by the excessive fluoride intake. Ninety tea samples were analyzed by potentiometry using a selective fluoride ion electrode. Mixed tea samples (2.82 ± 1.11 mg/L) and black tea samples (2.28 ± 0.79 mg/L) recorded the highest fluoride levels. The contribution of drinking water is important for increasing fluoride levels in teas. The daily consumption of two cups (250 mL per cup) of mixed and black teas prepared with La Laguna tap water does pose a health risk for children (4-8 years old) because of the high contribution percentages (74.4% and 63.6%, respectively) of the Tolerable Upper Intake Level set in 2.5 mg/day by the EFSA (European Food Safety Authority). A minor consumption in children (4-8 years old) and adults during pregnancy is advisable.

Indexed as

Camellia sinensisAdultChildChild, PreschoolDietFluoridesHumansSpainTeaFluoridesTeaFluorideFluorosisHuman exposureTap waterTea

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.