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Effect of dietary nitrate on thyroid function
Science (New York, N.Y.)
|November 24, 1961
Summary
Dietary nitrate intake impacts thyroid gland iodine metabolism in rats and sheep. Iodine levels are crucial for mitigating nitrate
Area of Science:
- Endocrinology
- Animal Nutrition
- Toxicology
Background:
- Thyroid hormones are essential for regulating metabolism.
- Iodine is a critical component of thyroid hormones.
- Dietary nitrate is a common environmental contaminant.
Purpose of the Study:
- To investigate the effects of dietary nitrate on iodine metabolism in rats and sheep.
- To determine the role of dietary iodine levels in modulating nitrate's effects on the thyroid gland.
Main Methods:
- Rats and sheep were fed diets containing specific concentrations of nitrate.
- Thyroid gland function and iodine metabolism were assessed.
- Iodine levels in the diet were varied.
Main Results:
- 0.31% dietary nitrate in rats and 0.92% in sheep altered normal iodine metabolism.
- The impact of nitrate on iodine metabolism was dependent on the dietary iodine concentration.
Conclusions:
- Dietary nitrate can interfere with thyroidal iodine metabolism in mammals.
- Adequate dietary iodine is important for maintaining thyroid function in the presence of nitrate exposure.
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