Changes in vitamin and mineral intakes and serum concentrations among free-living men on cholesterol-lowering diets: the Dietary Alternatives Study
| Autor: | Manuel N. Cooper, Robert H. Knopp, Alice Dowdy, George O. Gey, Barbara S. McCann, Carolyn E. Walden, Barbara M. Retzlaff |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Male
Vitamin medicine.medical_specialty medicine.medical_treatment Hypercholesterolemia Medicine (miscellaneous) Riboflavin Ascorbic Acid Nutrition facts label Niacin Selenium chemistry.chemical_compound Folic Acid Animal science Internal medicine medicine Humans Vitamin E Magnesium Vitamin A Minerals Nutrition and Dietetics Vitamin C Vitamins Vegetarian nutrition beta Carotene Micronutrient Carotenoids Dietary Fats Diet Zinc Endocrinology chemistry Dietary Reference Intake Energy Intake |
| Zdroj: | The American Journal of Clinical Nutrition. 53:890-898 |
| ISSN: | 0002-9165 |
| DOI: | 10.1093/ajcn/53.4.890 |
| Popis: | Nutritional adequacy of diets with 18-30% of calories from fat was investigated in men with elevated serum cholesterol (n = 396) at the end of diet classes and 1 and 2 y later. On 4-d food records, intakes of vitamin A, beta-carotene, folate, vitamin C, magnesium, vitamin B-6, iron, thiamin, and riboflavin increased from baseline whereas niacin, selenium, vitamin E, and zinc decreased. Median zinc intake, 80% of the recommended dietary allowance (RDA) at baseline, decreased to approximately 75% of the RDA, most markedly when intakes of meat, fish, and poultry were limited to 85 g/d. Nutrient densities generally increased. Of the serum nutrients measured, median beta-carotene and vitamin C increased, whereas vitamin B-6, iron, and zinc were unchanged. Below-normal values were fewer for vitamin C and magnesium. Diets similar to the National Cholesterol Education Program Step-Two Diet [less than 7% saturated fatty acids, less than 200 mg cholesterol/d] appeared to provide increased levels of most micronutrients both short and long term to men receiving comprehensive dietary counseling. |
| Databáze: | OpenAIRE |
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