Abstract：
:That beta-carotene is the main source of vitamin A in fruits and vegetables has been known for many years. Many studies have been conducted to assess bioconversion of beta-carotene to vitamin A in animals. More recently, bioconversion studies using stable-isotopically labeled beta-carotene have been used to assess bioconversion in humans. The efficiency of the bioconversion of beta-carotene to vitamin A has been accepted to be six but this value may vary depending on vitamin A status and the amount of beta-carotene consumed. This paper reviews the human studies on purified beta-carotene supplements and/or consumption of fruits and vegetables conducted to ascertain whether beta-carotene can alter the vitamin A status of deficient populations. The conclusion is that data are lacking from well-designed studies to show that, with the possible exception of red palm oil, beta-carotene-rich foods are as effective as vitamin A supplements for eliminating vitamin A deficiency. Nevertheless, the data do show that beta-carotene-rich foods may be important for preventing vitamin A deficiency.
journal_name
Arch Latinoam Nutrjournal_title
Archivos latinoamericanos de nutricionauthors
Nestel P,Trumbo Psubject
Has Abstractpub_date
1999-09-01 00:00:00pages
26S-33Sissue
3 Suppl 1eissn
0004-0622issn
2309-5806journal_volume
49pub_type
杂志文章,评审abstract：:The objective of this study was to determine whether a short training program, using real foods, would decreased their portion-size estimation errors after training. 90 student volunteers (20.18+/-0.44 y old) of the University of the Basque Country (Spain) were trained in observational techniques and tested in food-we...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2007-06-01 00:00:00
abstract：:To analyze the behavior of the anthropometric measures during gestation in teenagers and adults pregnant women. The study group was formed by 81 well nourished, healthy pregnant women, 14 teenagers and 67 adults. They were evaluated at Centro de Atención Nutricional Infantil "Antímano". The anthropometric criteria inc...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2001-12-01 00:00:00
abstract：:Three varieties of common beans were chemically analyzed and their protein quality was evaluated in 12 human male adult subjects by the short-term nitrogen balance method. Chemical analyses were performed for both raw and cooked grains. Cooking reduced the trypsin inhibitors in 28 to 73%, hemagglutinins, 100%, tannins...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1986-03-01 00:00:00
abstract：:The presence of C. perfringens was analyzed in 75 samples of pork sausages (chorizo, salchichon and bologna), obtained from five processing plants located in the Metropolitan Area of Costa Rica. Previously and after the biochemical identification of the strains, the most probable number (MPN) of C. perfringens per gra...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：:This article presents the methodology to incorporate nutrition education in Chilean primary schools. In 2001, nutritional status, food and nutrition knowledge, attitudes and practices of 1701 school children from ten urban and rural public schools (3rd to 7th grade) were evaluated. This information was necessary to de...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章,评审
doi：
更新日期：2004-06-01 00:00:00
abstract：:Chile had a rapid epidemiological and nutritional transition with an increase in risk factors for chronic diseases and obesity. Dietary changes have occurred, mostly an increase in consumption of foods high in fat, sugar and salt, as well as a decrease in physical activity. This has led to a marked increase in obesity...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2010-12-01 00:00:00
abstract：:An acidificant psychrotrophic bacteria was isolated from raw milk from Bromocresol Purple Agar medium, after incubation at 7 degrees C, for 10 days. Cells from the culture, at the beginning of the stationary phase, were inoculated sterilized in powder milk, reconstituted at 12% of total solids, resulting in approximat...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1999-03-01 00:00:00
abstract：:Up until now, the composition of goat's milk has not been well known. However, every day it is more and more evident that this milk is quite different from cow's and other mammal's milk. This difference depends on a major concentration in some of milk elements. Caseins, in goat's milk are found in a minor concentratio...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1992-06-01 00:00:00
abstract：:In the Caracas Longitudinal Study, 147 boys and 111 girls--8 to 16 years of age--who had been classified as early, average and late maturers, were analyzed in the context of risk of overweight and obesity. Differences in Body Mass Index (BMI), Arm Circumference (AC), Triceps and Subscapular Skinfolds (TRSK, SSSK) were...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1999-03-01 00:00:00
abstract：:The purpose of this research was to determine the effect of including fresh and ensilaged coffee pulp in rations for monogastric animals, and find the best protein and coffee pulp levels in rations for rats. Fresh coffee pulp and pulp ensilaged for 12 months were used; both kinds of pulp were sun-dried before incorpor...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1985-09-01 00:00:00
abstract：:The weight, head, chest and arm circumference of four hundred and sixty-one infants in Jamaica were measured during the first twenty-four hours of birth. The purpose of this work was to draw attention to the arm circumference as a possible indicator of the stage of maturity at birth and correlate this parameter agains...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1977-09-01 00:00:00
abstract：:Iron deficiency anemia (IDA) remains a word public health problem, particularly in children and child-bearing-age women. Iron demands need to be covered by adolescent women due to the increased physical growing, menstruation, pregnancy and fetal growing tissues at this life stage. This study was proposed to investigat...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2009-06-01 00:00:00
abstract：:Proteins, some minerals and vitamins, play important roles in erythropoiesis and the survival of the red blood cell. This article deals specifically with the physiological requirements and recommended intakes of iron, folate and vitamin B12. A comparison of the physiologic iron requirements according to age and sex, a...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章,评审
doi：
更新日期：1988-09-01 00:00:00
abstract：:The lipid profile and food pattern of 50 Chinese immigrants living in San José, Costa Rica were studied during 1999. The results showed that 35% of the immigrants had high levels of total cholesterol (> or = 5.16 mmol/L) and 51% had high concentrations of LDL-Cholesterol (> or = 2.84 mmol/L). Moreover, 36% of them had...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2002-09-01 00:00:00
abstract：:The protein quality of edible mushrooms besides being species/strain specific, could also vary with the growth substrate. The aim of this work was to determine the amino acid composition of the protein from edible mushrooms--Pleurotus sp. "Florida" (L1), P. ostreatoroseus (L2) and P. sajor-caju (L3), cultivated on ban...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1998-12-01 00:00:00
abstract：:A laboratory study of wheat stored at two different levels of moisture content with and without presence of Sitophilus zeamais Motschulsky was performed. Flexible PVC and polythene films as seals were used in order to examine their effectiveness to maintain the wheat quality by comparing changes in moisture content, g...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1992-12-01 00:00:00
abstract：:Epidemiologic and experimental studies have pointed to an association between fat intake and colorectal carcinogenesis. In the present work we have studied the correlation between fat intake and mortality caused by colorectal cancer in the venezuelan population. For this purpose, we have calculated the correlation coe...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1992-06-01 00:00:00
abstract：:The energy requirements in free-living elderly rural people were investigated by measuring physical activity level and basal energy expenditure using a physical activity questionnaire and indirect calorimetry, respectively. Approximately 65 different occupational and leisure activities over the previous 12 months were...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1999-06-01 00:00:00
abstract：:Epidemiological studies have shown that unfavorable serum lipids levels in childhood are predictors of development of atherosclerosis lesions in adulthood. We assessed the lipid profile of 297 Venezuelan preschool children (4-7 years old) from two socioeconomic levels in order to compare them by this characteristic. T...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2006-03-01 00:00:00
abstract：:A compensatory effect of chronic malnutrition that influences excess of weight has been reported. This effect would be more evident in indigenous populations. The aim of this study was to find out the association between ethnic group (mapuche) and body composition in the telarche and menarche of indigenous and non ind...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2009-09-01 00:00:00
abstract：:The objective of this study was to correlate the educational achievement (EA) of Chilean elementary and high-school graduates with their food habits. For this purpose, a random sample of 550 schoolers from the Metropolitan Area of Santiago, Chile, graduating from elementary and high school (1:1) of both sexes (1:1), f...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1992-03-01 00:00:00
abstract：:The disaccharide lactose, the principal carbohydrate of animal milks, requires the enzyme lactase to split it to glucose and galactose. Undigested lactose passes to the colon where fermentation produces hydrogen and short-chain fatty acids that can cause abdominal distention, pain and sometimes diarrhea. Persistence o...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章,评审
doi：
更新日期：1988-09-01 00:00:00
abstract：:Indicator and foodborne pathogen microorganisms in the "for export" hake fillets manufacturing were investigated in this study. Critical control points were identified and prevention activities and control were proposed during seafood elaboration process. 45 samples of hake from sequential processing operation stages,...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
abstract：:The objective of this study was to validate the estimation of body fat (%BF) by DXA (Dual-Energy X-Ray AbsorciomDPX-MD) against the four compartment model (4C) of body composition in 32 Mexican pubertal girls and boys (aged 9-14 y; F=16). The mean of the difference between DXA and 4C model was -3.5 %BF (p=0.171). The ...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2010-09-01 00:00:00
abstract：:In the following study, dietary fiber, insoluble (IDF), soluble (SDF) and total (TDF) were determined in cereals and by-products and in commercial cereals products which are found in the national market and promoted as a source of fiber. The Prosky's enzimatic-gravimetric method was used. Results were expressed as g/1...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1993-09-01 00:00:00
abstract：:Magnesium levels in serum, as well as 24-hr urine and 2-hr post-fasting urine levels, were studied in 107 pregnant women, who were later separated into two groups. One group was advised to follow their usual intake, and the other, to supplement the diet with 750 cc of milk. The control group (30 healthy non-pregnant w...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1987-09-01 00:00:00
abstract：:The present research was carried out for the purpose of collecting part of the germ plasm of grain amaranth in Guatemala, as well as to evaluate it in terms of yield, chemical composition and nutritive value. A total of 27 Guatemalan selections, one from Mexico and seven from Peru were planted in June 1982 in 7.5 m2 e...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1987-06-01 00:00:00
abstract：:The objective was to determine the relationship between the mother's nutritional status and the newborn's gestational characteristics. A sample of 149 women with gestational diabetes was controlled in the High Risk Obstetric Unit of the Medical Specialties Public Health Center before delivery in the maternity ward of ...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2012-12-01 00:00:00
abstract：:Maximum advantage of certain fish species captured with shrimp, at present not fully utilized, constitutes a necessity in Venezuela. The purpose of this research work was to evaluate the stability of three of those fish species: bagre, cunaro and caballa, based on the changes that might occur in their fat content. Thi...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1985-06-01 00:00:00
abstract：:Actually it is possible to find a great offer of pre-cut vegetables in the Chilean market. These products present certain advantages, such as saving time in their preparation at home. The microbiological quality of some of these vegetables, pre-cut celery and pre-cut cabbage was assayed. Two different types of the pro...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2003-12-01 00:00:00
