Betel quid chewing as a source of manganese exposure: total daily intake of manganese in a Bangladeshi population
2011

Manganese Exposure from Betel Quid Chewing in Bangladesh

Sample size: 37 publication 10 minutes Evidence: moderate

Author Information

Author(s): Al-Rmalli Shaban W, Jenkins Richard O, Haris Parvez I

Primary Institution: De Montfort University

Hypothesis

Is betel quid chewing a significant source of manganese exposure in a Bangladeshi population?

Conclusion

Betel quid chewing is a significant source of manganese exposure, leading to higher urinary manganese levels in chewers compared to non-chewers.

Supporting Evidence

  • Betel quid chewers had a mean urinary manganese concentration of 1.93 μg L-1.
  • Non-chewers had a mean urinary manganese concentration of 0.62 μg L-1.
  • The daily intake of manganese from betel quid was estimated to be 20.3 mg/day.

Takeaway

Chewing betel quid can make people in Bangladesh get too much manganese, which might be bad for their brains.

Methodology

Urinary manganese levels were measured in 15 betel quid chewers and 22 non-chewers using inductively coupled plasma mass spectrometry (ICP-MS).

Potential Biases

Potential bias due to self-reported data on betel quid consumption.

Limitations

The study had a small sample size and was conducted only with UK Bangladeshi participants, not those in Bangladesh.

Participant Demographics

Participants were ethnic Bangladeshis living in the UK, aged 28-71, with a male-to-female ratio of 2.5:1.

Statistical Information

P-Value

0.009

Statistical Significance

p=0.009

Digital Object Identifier (DOI)

10.1186/1471-2458-11-85

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication