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Related Experiment Videos

Relationship between smoking and antioxidant nutrient status

M O Faruque1, M R Khan, M M Rahman

  • 1Institute of Nutrition and Food Science, University of Dhaka, Bangladesh.

The British Journal of Nutrition
|April 1, 1995
PubMed
Summary

Smoking significantly lowers plasma vitamin C levels and disrupts the relationship between dietary intake and vitamin C status in male university students. This highlights smoking

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Area of Science:

  • Nutritional Science
  • Public Health
  • Biochemistry

Background:

  • Smoking is a global health concern with known detrimental effects.
  • Antioxidant nutrients play a crucial role in mitigating oxidative stress.
  • Understanding the impact of smoking on nutrient status is vital for public health interventions.

Purpose of the Study:

  • To investigate the relationship between smoking habits and the intake and status of key antioxidant nutrients.
  • To compare nutrient intake and status between male smokers and non-smokers.
  • To explore potential dose-response effects of smoking on antioxidant status.

Main Methods:

  • A case-control study involving 44 male smokers and 44 non-smokers (aged 22-28 years) from Dhaka University.
  • Assessment of dietary intake of vitamin C, carotenes, and zinc.

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  • Measurement of serum levels of vitamin A, vitamin E, plasma vitamin C, serum copper, and serum zinc.
  • Statistical analysis including t-tests and linear regression.

    • Main Results:

    • Smokers exhibited lower dietary intake of vitamin C, carotenes, and zinc, with only zinc intake being statistically significant.
    • Plasma vitamin C levels were significantly lower in smokers compared to non-smokers (P=0.0004).
    • Smokers showed significantly lower serum copper (P=0.04) and higher serum zinc (P=0.003) levels. A dose-response relationship between smoking and vitamin C status was observed.

    Conclusions:

    • Smoking appears to induce an imbalance in antioxidant nutrient intake and status, particularly affecting vitamin C.
    • The positive correlation between dietary intake and plasma vitamin C observed in non-smokers was absent in smokers.
    • These findings underscore the negative impact of smoking on crucial antioxidant defenses.