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Study: Bangladesh eating more fish, but lower quality

Despite increased fish consumption, 'overall nutritional quality of fish' is lower over a 19-year period.

Although people in Bangladesh ate more fish over a 19-year period, there was a "lower overall nutritional quality of fish available for consumption over time," according to a study published last week. 

Bangladesh fish consumption increased by 30 percent from 1991 to 2010 and consumption of non-farmed species dropped by 33 percent over the same period. Farmed fish filled in the consumption gap for wild fish.

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"Despite increased total fish consumption, there were significant decreases in iron and calcium intakes from fish and no significant change in intakes of zinc, vitamin A and vitamin B12 from fish," according to the research published in PLOS One.

"Our results challenge the conventional narrative that increases in food supply lead to improvements in diet and nutrition," the study suggested.

"As aquaculture becomes an increasingly important food source, it must embrace a nutrition-sensitive approach, moving beyond maximizing productivity to also consider nutritional quality."

Researchers analyzed fish consumption and nutrient intakes from fish in Bangladesh using nationally representative household expenditure surveys and detailed species-level nutrient composition data.

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