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Dietary nitrite and scavenger antioxidants trace elements

R C de Angelis1, I C Terra, J H Scialfa

  • 1Department of Physiology and Biophysics, University of São Paulo, Brazil.

International Journal of Food Sciences and Nutrition
|January 1, 1996
PubMed
Summary

The nitrite-bacon-proline (NB) diet in rats increased body weight and feeding efficiency but negatively impacted body density and serum markers. Selenium and ascorbic acid supplementation mitigated these adverse effects.

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Area of Science:

  • Nutritional Science
  • Toxicology
  • Biochemistry

Background:

  • The impact of processed meat components on animal physiology is a significant area of research.
  • Nitrite, proline, and bacon are common in processed foods, necessitating investigation into their combined effects.

Purpose of the Study:

  • To investigate the physiological effects of a diet containing nitrite, bacon, and proline (NB) on rats.
  • To determine if selenium and ascorbic acid can counteract any adverse effects of the NB diet.

Main Methods:

  • Rats were fed control, NB, NB plus selenium (NBSe), or NB plus ascorbic acid (NBC) diets for 150 days.
  • Body weight, feeding efficiency, body density, and serum levels of lactic acid, uric acid, cholesterol, and selenium were measured.

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Main Results:

  • The NB diet enhanced body weight and feeding efficiency but reduced body density and increased serum lactic acid, uric acid, and cholesterol.
  • Serum selenium levels decreased in rats fed the NB diet.
  • Selenium and ascorbic acid supplementation prevented the reduction in body density and modulated uric acid and cholesterol levels.

Conclusions:

  • The NB diet exhibits adverse effects on rat physiology, including altered body composition and metabolic markers.
  • Selenium and ascorbic acid act as protective agents, mitigating some of the negative impacts of the NB diet.