Effect of a moderate variation in dietary energy intake on the retention and excretion of zinc, calcium, and magnesium
| Autor: | Tola Atinmo, I. O. Adeyefa, J. F. Olorunleke, E. A. Fadero |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
medicine.medical_specialty
Magnesium Endocrinology Diabetes and Metabolism Biochemistry (medical) Clinical Biochemistry chemistry.chemical_element General Medicine Urine Zinc Calcium Biochemistry Urinary calcium Inorganic Chemistry Excretion Endocrinology Animal science chemistry Internal medicine medicine Mineral balance Feces |
| Zdroj: | Biological trace element research. 8(2) |
| ISSN: | 0163-4984 |
| Popis: | Mineral balance was studied by metabolic balance techniques in 13 healthy college females aged 21–23 yr. They were fed diet containing 1780 kcal, 2580 kcal, and 25 g protein in a 20-d experiment period. Both diets contained approximately 5.28 mg zinc, 216.85 mg calcium, and 364.3 mg magnesium. The diet consisted of habitually consumed foods. Blood, urine and fecal samples were collected for mineral analysis using atomic absorption spectrophotometry. Plasma mineral levels were not affected by the change in dietary energy intake. Fecal calcium and magnesium were significantly higher when subjects were fed the low calorie (1780 kcal) diet, whereas there was no significant difference in fecal zinc for the two levels of dietary energy. Urinary calcium and magnesium were also significantly higher when the diet provided 1780 kcal though, on the other hand, urinary zinc was significantly higher when the diet provided 2680 kcal (P |
| Databáze: | OpenAIRE |
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