Nutrition Commons^™

Reporting Quality Of Randomized Trials In The Diet And Exercise Literature For Weight Loss, Cheryl A. Gibson, Erik P. Kirk, James D. Lecheminant, Bruce W. Bailey Jr, Guoyuan Huang, Joseph E. Donnelly

Faculty Publications

Background

To adequately assess individual studies and synthesize quantitative research on weight loss studies, transparent reporting of data is required. The authors examined the reporting quality of randomized trials in the weight loss literature, focusing exclusively on subject characteristics as they relate to enrollment, allocation, and follow-up.

Methods

An extensive literature review, which included a computerized search of the MEDLINE database, manual searches of bibliographic references, and cross-referencing of 92 review articles was conducted. A checklist, based on CONSORT recommendations, was used to collect information on whether or not authors reported age, gender, co-morbid disease, medication use, race/ethnicity, and postmenopausal …

The Effects Of Selenium On Estrogen-Regulated Gene Expression In Lncap Prostate Cancer Cells, Tory L. Parker

Theses and Dissertations

Prostate cancer is the most frequently diagnosed cancer in American men and the second leading cause of cancer deaths. Supplementation with Se has reduced the incidence of prostate cancer and Se status is inversely correlated with prostate cancer risk. One molecular mechanism by which high Se concentrations may affect cancer risk is by catalyzing disulfide bond formation or otherwise complexing with reactive sulfhydryl groups in cellular proteins. The estrogen receptor (ER) contains cysteines in zinc (Zn) fingers that are susceptible to oxidation and internal disulfide formation, which can prevent DNA binding. We examined ER binding to its DNA response element …

Quality Of Regular And Parboiled Rice In Long-Term Storage, L. Coons, M. B. Halling, Michelle A. Lloyd, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

There is interest in storing food for long periods of time for such uses as disaster relief efforts, military rations and space travel. Rice hermetically sealed in cans and treated to remove oxygen is available in the retail market, but further work is needed to determine the effects of long-term storage on quality. The objective of this research was to investigate the quality of regular and parboiled white rice packaged for long-term storage in cans treated to reduce oxygen levels and held at ambient temperature for up to 30 years. Eighteen samples of white rice (11 regular, 7 parboiled) packaged …

The Effect Of Religiosity And Spirituality On Work Practices And Trust Levels In Managers And Their Subordinates In Food And Nutrition Care Departments, Jennifer S. Oler

Theses and Dissertations

The purpose of this study was to examine the extent to which religiosity and spirituality affected daily work practices and leader/follower trust levels in foodservice and nutrition directors and their subordinates. A similar 72-item survey questionnaire was developed for both the directors and employees, which was completed by 129 directors and 530 employees. Both questionnaires contained questions on demographics, religious influences on work practices, trust characteristics, and three validated measures of religiosity: 1) worship service attendance (1=Religiosity Score), 2) influence of spiritual beliefs on daily life, and 3) frequency of prayer (2 + 3=Spirituality Score). Frequency data was gathered for …

Body Mass Index And Soft Drink Consumption Among Adolescents, Olivia Love Mccord

Theses and Dissertations

Objective: To determine the relationship between body mass index (BMI) and soft drink consumption among adolescents. It is hypothesized that soft drink consumption contributes to overweight and obesity among adolescents.

Background: Research examining the relationship between body mass index and soft drink consumption is inconsistent. Several studies have found a negative association between total sugar intake and BMI; however, others have found a link between sugar-sweetened drinks and obesity. There are no known studies that have controlled for physical activity.

Data and Methods: Data on approximately 225 adolescents were used. Frequency of soft drink consumption, type of milk, and calcium …

Effect Of Long-Term Storage On Baking Powder Functionality, Michelle A. Lloyd, Lynn V. Ogden, Oscar A. Pike, R. Utley

Faculty Publications

Baking powder is widely used to leaven baked products. The industry standard for baking powder shelf-life is eighteen to twenty-four months, but little information is available on baking powder functionality when stored beyond this time. A longer shelf-life would prove beneficial in certain situations, such as personal food storage, disaster relief efforts, and space missions. The objective of this research was to determine the effect of long-term storage on baking powder functionality. Six samples of double-acting baking powder in original commercial packaging were obtained from donors and two fresh samples were purchased. Samples ranged in age from 0.25-29 years and …

Quality Of Dehydrated Potato Flakes In Long-Term Storage, A. P. Neilson, H. Farnsworth, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

There is interest in dehydrated potatoes packaged for long-term storage for uses such as military rations, disaster relief, and space travel. Research has shown the effects of processing and storage (up to 2 years) on dehydrated potatoes, including such aspects as sensory properties and nutrient degradation. The quality of dehydrated potatoes during long-term storage has not been studied. The objective of this study was to examine the quality of dehydrated potato flakes held at ambient conditions in residential storage up to 30 years. Thirteen samples of dehydrated potato flakes packaged in No. 10 cans were obtained from donors. Sample age …

Effects Of Long-Term Storage On Wheat Flour Packaged In A Low Oxygen Atmosphere, N. M. Dickey, Devin J. Rose, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

There is interest in the long-term storage of food for applications such as space flight, military rations, and disaster relief. Long-term storage of wheat flour under modified atmospheres has not been extensively studied. The objective of this research was to examine the effects of long-term storage on wheat flour packaged in a low oxygen atmosphere. Ten samples of wheat flour packaged in No. 10 cans were obtained from donors. Samples ranged in age from 0.5-11 years and were stored at ambient temperatures (13-27º C). Oxygen levels were below 1%, and moisture contents were between 12.0% and 14.3%. Color was assessed …

Quality At Time Of Purchase Of Dried Milk Products Commercially Packaged In Reduced Oxygen Atmosphere, Michelle A. Lloyd, J. Zou, H. Farnsworth, Oscar A. Pike

Faculty Publications

Nonfat dry milk (NDM) and powdered whey beverages are available at the retail level, packaged in No. 10 cans in a reduced oxygen atmosphere to prolong shelf life. The objective of this research was to determine the sensory and nutritional quality of these dried milk products at the time of purchase. In the 10 brands tested, wide variation existed in headspace oxygen, can seam quality, sensory quality, and vitamin A (with 6 of 10 brands entirely lacking the vitamin). Manufacturers of dried milk products packaged in cans for long-term storage need to give careful attention to can seam quality, product …

Determination Of The Nutritional Level Of Calcium And Phosphorus In Llamas (Lama Glama) In Two Seasons In The Condoriri Agricultural Experiment Center, Gustavo Adolfo León Titichoca

Theses and Dissertations

The concentrations of calcium and phosphorus were determined in 12 llamas from the Condoriri Agricultural Experiment Center (Oruro Technical University) of Oruro, Bolivia during two seasons (wet and dry) and at three ages (newborn, juvenile, and adult). Samples of flesh were taken from the arm, leg, back, rib, and neck. Pasture samples (grassland and prairie) were used to determine the rate of biting of each animal studied. The blood samples were taken by extracting blood from a jugular vein. The minerals (Ca and P) in the flesh are highest in the wet season, 113.78 mg/100 g. The newborns were found …

Botanical And Chemical Composition Of Diets Selected By Alpacas (Lama Pacos) Pastured In The Ulla Ulla Wetlands, Lino Constancio López López

Theses and Dissertations

This study was done in the subtropical high Andes of Ulla Ulla. Its objectives were to determine the botanical composition, nutritional value, and preferred forages in the wetlands (hydromorphic and mesico) diet, by season (dry and wet), and by botanical family (12 families). Three-hundred sixty samples were collected from 6 alpacas with esophageal fistulations, and from them nutritional value and botanical composition were determined; the latter was compared with the botanical composition of the wetlands to determine preference. The results are highly significant (p<0.01) for botanical families, interaction between season and family, interaction of wetland type and family, and interaction of the season with wetland type and family. Species from the family Juncaceae were the most consumed with 27.78%, followed by moderate consumption of Cyperaceae (21.03%), Gramineae (15.02%), and Rosaceae (12.39%). Lower consumption occurred with Umbeliferaceae and Asteraceae with 6.61% and 5.64%, respectively, and the lowest consumption was of Plantaginaceae, Scrophulariaceae, minor plants, Gentianiaceae, unidentified plants, and Ranunculaceae with 2.86%, 2.50%, 2.17%, 2.08%, 1.03%, and 0.89%, respectively. The botanical families with the greatest preference value (PV) were Gramineae (PV=6.48), Scrophulariaceae (PV=8.75), Gentianiaceae (PV=7.55), and Ranunculaceae (PV=8.16). Proportional preference was observed in Juncaceae (PV=1.49), Cyperaceae (PV= -1.72), Rosaceae (PV=1.82), and Umbeliferaceae (PV= -0.82). The Asteraceae family was classified as a forced preference (PV= -6.29). The average nutritional value of the diet shows high values: 14.69% of raw protein, 14.58% ash, 85.42% organic matter, 21.43% raw fiber, and 31.00% neutral detergent fiber. It was concluded that alpacas efficiently select their diet for nutritional value, however, consumption is not appropriate, which results in negative live weight gain, especially in the dry season. On the other hand, the plants' preference values correspond to the lowest and one of the highest is a forced preference, according to the botanical composition of the wetland, which suggests that the preferred plants are repeatedly consumed in current continual pastures, and that alpacas are forced to consume unpalatable plants. This reflects on bad CANAPAS wetlands management in Ulla Ulla. Consequently, reversing this situation implies changes in pasture management and a reduction of the animal load.

Analysis Of Weight-Related Advertisements And Nutrition Articles In Popular Women's Magazines, Jennifer Cardall Jacobson

Theses and Dissertations

Objective: The purpose of this study was to discover whether the weight-related messages and themes from food advertisements in women's magazines reinforce or contradict the messages communicated in nutrition-related articles focusing on weight control within the same magazines.

Design: Content analysis of 48 issues of weight-related content six popular women's magazines, 2001-2002. There were three magazines in each of two categories, "homemaking" and "health." All food and nutrition advertisements were analyzed (n=954), along with all nutrition articles (n=336). Advertisements and articles were identified as being either weight-related or non-weight-related. Type of food/product advertised, claims used to market the product, and …

Understanding Why Adult Participants At The World Senior Games Choose A Healthy Diet, Ray M. Merrill, Eric C. Shields

Faculty Publications

Identifying those seniors most likely to adopt a healthy diet, the relative importance they place on certain perceived benefits associated with a healthy diet, and whether these perceived benefits are associated with selected demographic, lifestyle, and health history variables is important for directing effective dietary health promotion programs. Methods: Analyses are based on a cross-sectional convenience sample of 670 seniors aged 50 years and older at the 2002 World Senior Games in St. George, Utah. Data are assessed using frequencies, bivariate analysis, analysis of variance, and multiple logistic regression analysis. Results Fruit and vegetable consumption was significantly higher in individuals …

Quality Of Hermetically Packaged Nonfat Dry Milk In Long-Term Storage, Michelle A. Lloyd, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

Over the past few decades, nonfat dry milk (NFDM) has been retail-packaged for long-term storage in No. 10 cans under reduced oxygen concentrations for use in emergency situations. Little information is available concerning the quality of NFDM held in such conditions for prolonged storage periods. The objective of this research was to evaluate the quality attributes of NFDM in hermetically sealed cans with reduced oxygen levels held in long-term storage. Twenty samples of regular and instant NFDM (representing 9 brands) stored up to 29 years at ambient conditions were obtained from 14 sources. Samples were evaluated for headspace oxygen, can …

Quality Of Dehydrated Mashed Potatoes Retail Packaged In No. 10 Cans, H. Farnsworth, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

Manufacturers of further processed potato products recognize consumer demand for convenience and the economy of transporting dehydrated commodities. Because of their bulkiness, dehydrated potato products are often sold in large containers, including No. 10 cans. The quality of such products available at the retail level has not been reported. The objective of this research was to compare the quality of several brands of dehydrated instant mashed potatoes packaged in No. 10 cans for retail sale. Eight brands of instant mashed potatoes, including two types (4 granules, 4 flakes) packaged in No. 10 cans were obtained from retail outlets representing at …

Quality And Adequacy For Long-Term Storage Of Dehydrated Apple Slices Packaged In No. 10 Cans, T. S. Oesterle, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

Dehydrated food commodities can be packaged in restaurant-size No.10 cans intended for long-term storage for such uses as personal storage, emergency relief efforts and military rations. Because foods packaged for long-term storage are seldom opened soon after purchase, the quality of the product or the adequacy of the packaging could be unknown to the buyer for months or even years. The objective of this research was to compare the quality of various brands of dehydrated apple slices sold at the retail level in No.10 cans and to evaluate the adequacy of the packaging for long-term food storage. Nine brands of …

Quality Of White Rice Retail Packaged In No. 10 Cans For Long-Term Storage, M. B. Halling, N. D. Van Noy, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

Dry foods, such as white rice, are available for retail sale packaged in No. 10 cans for long-term storage in case of natural disasters or other emergencies. Little information is available regarding the quality of such products that are packaged for prolonged storage using hermetically sealed containers and oxygen absorbers. The objective of this research was to evaluate and compare the quality of several different brands of white rice products packaged for long-term storage, available at the retail level. Ten brands of rice products (7 long-grain white rice, 2 parboiled white rice, 1 instant white rice) packaged in No. 10 …

Effects Of Long-Term Storage On Quality Of Regular And Quick Rolled Oats, M. B. Mcewan, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

Traditionally, shelf life studies of cereal staples have investigated quality after storage for a maximum of several (~18) months. However, there is a market for product that will store for much longer periods of time, intended for such uses as personal storage, emergency relief efforts and military rations. Rolled oats in hermetically sealed cans and treated to remove oxygen are available at the retail level, yet little work has investigated the effects of long-term storage on quality. The objective of this research was to investigate the quality of regular and quick rolled oats packaged in cans for long-term storage. Twenty …

Quality Of Dehydrated Whole Egg Packaged In No. 10 Cans, T.A. Gnadt, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

Dehydration reduces egg mass and increases shelf-life without significantly affecting most functional properties. This has created a demand for dehydrated whole egg in military rations, emergency relief programs and personal storage. However, because such products are usually stored before use, the buyer may be unaware of product quality until long after purchase. The purpose of this study was to investigate the quality of several brands of dehydrated whole egg commercially packaged in No. 10 cans. Eight brands of dehydrated whole egg were obtained from food retailers. All but 1 brand were labeled as having a low oxygen environment. A 50 …

Isolation And Characterization Of Atriplex Hortensis And Sweet Chenopodium Quinoa Starches, K. H. Wright, K. C. Huber, Daniel J. Fairbanks, C. S. Huber

Faculty Publications

Starches from garden orach (Atriplex hortensis) and sweet quinoa (Chenopodium quinoa Willd. "Surumi") seeds were isolated, examined for compositional characteristics, and compared with bitter quinoa (Cheno-podium quinoa Willd.) starch. Garden orach and sweet quinoa seeds were similar in fat and ash contents, while garden orach seeds contained 10% more protein. Starches were isolated from seeds following a 12-hr soak in dilute alkaline solution using a series of grinding, screening, centrifugation, and washing steps. Isolated starches viewed by scanning electron microscopy yielded angular, polygonal granules 2 m in diameter. Starches displayed typical A-type crystalline packing arrangements as determined by X-ray powder …

Quality Attributes Of Dried Milk Products Packaged For Long-Term Storage, Michelle A. Lloyd, J. Zou, H. Farnsworth, Oscar A. Pike

Faculty Publications

There is a market for dehydrated foods, such as nonfat dry milk (NFDM), that are packaged for long-term storage in case of natural disasters or other emergencies. To maintain quality and optimize shelf-life, NFDM must be properly processed from good quality milk, well-packaged (minimizing moisture, light and oxygen), and stored appropriately. Research is needed to determine the variation in quality that exists in dried milk products intended for retail sale. The objective of this research was to evaluate and compare the quality of several types of dried milk products packaged for long-term storage. Ten brands of dried milk products (5 …

Practicality Of Large Mylar Bags To Store Corn And Beans In Kenya, Byu Food Quality Assurance Laboratory

Faculty Publications

The purpose of this study is to determine the practicality of using extra large zip-lock mylar bags with oxygen absorber packets to store corn and beans in Chyulu, Kenya. Weevil usually gets in the food after about 5 months, so if the oxygen can be maintained at a low level, the corn and beans could be stored for longer than that. The goal is to be able to store the food for 18 months. In order to determine the practicality of using the mylar bags to store corn and beans, the following questions will need to be answered: · Are …

The Relation Between The Nutritional Status And The Acute Diarrhetic Diseases In Children Younger Than Five Years Of Age In The Indigenous, Black, And Mestizo Ethnic Groups Of The Rural Area In The Imbabura Province, 1998-1999, Tanya Vaca

Theses and Dissertations

The study conducted in the rural area of the province of Imbabura included a total of 518 families that when compared with the estimated sample of 96%, 42.7 % corresponding to the indigenous ethnic group, 28.15% to Black and 25% to mixed-race ethnic groups, these differences of involvement between ethnic groups is due to the fact that the indigenous population is greater than the two remaining populations. Of the 518 families studied they were able to obtain a total of 794 children younger than 5, in which 48.5% pertaining to the male sex and 51.4% to the female sex. In …

Vitamin A Content In Preparations Of Plant Foods With The Highest Consumption In The Beneficiary Communities Of The Benson Institute, Ana Luisa Méndez Hernández

Theses and Dissertations

One of the main nutrient deficiencies in Guatemala is vitamin A, mainly in pregnant women and children under the age of five. The consumption of plant material can improve vitamin A ingestion levels. It is necessary to research consumption frequency and preparation methods of the most commonly available plant materials, as well as the vitamin A content of these plant materials. This research took place in San Juan Ermita, Chiquimula in the communities of Chancó, Corral de Piedra, and Salitrón. The results demonstrated that the most commonly consumed plant material preparations were mulberry soup, chatate soup, toasted maize soup, chipilin …