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publicado em 02/03/2013 às 10h38:00
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Bordering local foods healthier substitute for fast food

Study conducted at Amazon shows that people eat less fish now due to consumption of canned

 
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Foto: Agência Brasil
Bordering are replacing food derived from cassava and fish menu for more industrialized.
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Bordering are replacing food derived from cassava and fish menu for more industrialized.

The power of the population of the Amazon river, historically based on the consumption of local fish and products derived from cassava, has been replaced by a menu of canned goods. These people are having access to a greater variety of industrial products, they often fall into those type of eating fast food, unhealthy, "warns the researcher Gabriela Nardoto Bielefeld, PhD in Applied Ecology and USP professor at the University of Brasilia (UNB).

A change in eating habits was revealed by a study researcher and fellow at the Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), in Piracicaba, in partnership with the Federal University of Amazonas (Ufam) and its Center for Research and Studies of Cities in the Brazilian Amazon (Nepecab).

The research aims to determine how the dietary patterns of the population living along the Solimoes River is linked to access to the market economy and the urbanization process. Started in 2002 and nearing completion, the study was based on the collection of nails of the residents of this region and interviews with semi-structured in order to assess the diet of the people who gave samples of fingernail.

The researcher said that, in general, the dietary transition is occurring in Brazil towards the urbanization of the rural areas, ie the consumer economy and the economy of surplus are being replaced by the market economy, causing thus sociocultural changes .

The main factors contributing to nutritional transition process along the Solimoes River appear to be related both to increased paper money come from different social programs that reach the hands of locals, but also have a cultural component. With access to television, they end up identifying with products valued in urban areas, such as the diversity of processed food. Obtain and prepare the fish tend to give more work than the chicken, that's enough frozen and ready to be consumed. Moreover, at the time of floods from rivers, can be cheaper to buy frozen chicken than fish, he explained.

With access to television, they end up identifying with products valued in urban

She also stressed that the implications of this new eating habit leads to inactivity, since riverine not spend more physical energy to get food diary. Furthermore, there is a significant increase in consumption of fats, sugars, salt, eg.

"The challenge is to relate education and prevention of diseases related to the phasing out of local foods and the adoption of processed foods, he said.

<b> Exams nails reveal the types of food eaten </ b>

According to research from the information contained in fragments of nails, you can tell what the person ate.

The secret is contained in the nails on stable isotopes, chemical elements in the same number of protons but different numbers of neutrons. This causes the same element, such as oxygen, hydrogen, carbon or nitrogen, can be lighter or heavier, depending on the number of neutrons in their atoms.

The consumption of chicken and processed foods alters the ratio of stable isotopes of two chemicals found in nail, carbon and nitrogen. In samples from human tissue, such as nails, one can determine the isotopic ratios: delta and delta 13 carbon nitrogen 15. For example, a diet rich in fish and products derived from tapioca should result in a delta close to 13 carbon values ​​between -26% and -32%.

Already a menu with food and processed beef and chicken produces a value in the range of -11% to 14%. This occurs because of differences in isotopic ratios between food sources. While the fish and cassava reflect the values ​​of the Amazon rainforest, processed foods reflect the values ​​of foods originating from agriculture (corn, pasture, cane sugar, among others).

Source: Isaude.net
   Palavras-chave:   Fast food    Canned    River dwellers    Amazon    USP   
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