Comparative analysis of diet and tobacco use among households in Bangladesh

INTRODUCTION: While studies from developed countries have reported dietary differences between tobacco users and non-users, less is known about the influence of tobacco on diet in developing countries where malnutrition is a major public health challenge. METHODS: In this study we used the nationally representative Household Income Expenditure Survey 2010 from Bangladesh. Detailed household-level food consumption data including both ethnic and region-specific foods were collected over 14 days, consisting of 7 visits each collecting two days of dietary recall information. RESULTS: Out of 12240 households, 2061 consumed smoking tobacco only (16.8%), 3284 consumed smokeless tobacco only (26.8%), and 3348 consumed both (27.4%). Overall, 71% of the households reported expenditure on tobacco (smoking and/or smokeless) and were considered any-tobacco use households. Our results indicate that after controlling for household expenditure, household size, household child to adult ratio, place of residence (urban/rural), and region fixed effects, any-tobacco households consumed significantly lower amounts (g/day) of milk and dairy products (β = -17.11, p<0.01) and oil/fat (β = -10.30, p<0.01) compared to tobacco non-use households (β: adjusted mean difference in food amount g/day/household). Conversely, consumption of cereal grains (β = 152.46, p<0.0001) and sugar (β = 8.16, p<0.0001) were significantly higher among any-tobacco households compared to non-tobacco households. We observed similar patterns for smoking-only, smokeless-only, and dual tobacco product households. CONCLUSION: Evidence of dietary differences between tobacco-use and non-use households may play an important role in developing strategies to address poor diet and malnutrition among tobacco-use households in a developing country like Bangladesh. This study provides one of the first reports addressing diet in relation to tobacco use from a developing country, particularly using nationally representative data. The finding that tobacco-use households have poorer dietary consumption than non-use households suggests that it is important to address tobacco use in the context of nutrition and development programs in low-income environments.