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1.
J Nutr Educ Behav ; 2024 Aug 06.
Article in English | MEDLINE | ID: mdl-39115525

ABSTRACT

This report explores the 24-hour dietary recall (24HDR) form used for the Expanded Food and Nutrition Education Program (EFNEP). Dietary supplement use, amount of money spent on food, time being physically active, portion size consumed, foods reported by meals, and preparation of the meal were common components collected among 61 EFNEP programs. Components not included were instructions for the peer educator, use of food models/measuring cups, examples of foods/beverages, time food/beverages were consumed, color coding, and a prompt to review what was written. A standardized 24-hour dietary recall form with training protocols is recommended to uphold the integrity of data collection.

2.
Nutrients ; 16(13)2024 Jun 27.
Article in English | MEDLINE | ID: mdl-38999790

ABSTRACT

Nutrition education and food resource management (FRM) can assist food-insecure individuals in acquiring healthy and affordable food. We aimed to assess the relationships between FRM skills and healthy eating focus with diet quality and health-related behaviors in low-income adults during the COVID-19 pandemic. This cross-sectional study was conducted using an online survey of 276 low-income adults living in a low-food-access community in Northeast Connecticut. Through analysis of covariance, adults who usually or always had a meal plan, considered reading nutrition labels important, made a grocery list, were concerned about their food healthiness, and rated their diet quality as very good/excellent reported higher diet quality (frequency-based and liking-based scores) (p < 0.05 for all). Individuals who considered reading food labels very important and reported having a good diet reported less frequent pandemic-related unhealthy behaviors (consumption of candy and snack chips, soda or sugary drinks, weight gain, smoking) (p < 0.001). Furthermore, higher-frequency-based diet quality was associated with lower risk of overweight or obesity (OR: 0.37; 95% CI: 0.18, 0.76; p-trend < 0.01). Thus, FRM skills and healthy eating focus were associated with higher diet quality and healthier self-reported changes in diet, weight, and smoking behaviors during the pandemic.


Subject(s)
COVID-19 , Diet, Healthy , Health Behavior , Poverty , Humans , Male , Female , Adult , Diet, Healthy/statistics & numerical data , Cross-Sectional Studies , COVID-19/epidemiology , COVID-19/prevention & control , Middle Aged , Connecticut/epidemiology , SARS-CoV-2 , Feeding Behavior , Young Adult , Food Labeling , Diet
3.
Nutrients ; 15(19)2023 Sep 26.
Article in English | MEDLINE | ID: mdl-37836431

ABSTRACT

The purpose of this study was to determine how the 24-hour dietary recall (24HDR) is administered and how the Expanded Food and Nutrition Education Program (EFNEP) peer educators and other staff are trained on the data collection and entry process, from the EFNEP coordinators' perspectives. This cross-sectional, quantitative study utilized an online survey to collect information from EFNEP coordinators representing 61 of 76 EFNEP programs. While 56% of the programs collected the 24HDR data starting with the first thing eaten the previous day, 49% of them started collecting data at the time of class, going backwards. Most programs, i.e., 72%, reported using a multiple-pass method; however, only one-third of them reported using the standard five-pass method. Almost all programs, i.e., 97%, reported one peer educator collecting data from a group of 2-12 clients. All programs reported collecting the 24HDR data in a group setting, with about one-third of the programs also collecting data one-on-one. Most programs, i.e., 57%, reported spending ≤4 h on the initial training of staff in how to collect 24HDR data, and 54% of them reported that the peer educators entered the data themselves. This study found that the methods used to collect answers, train the staff, and enter the 24HDR data varied across EFNEP programs and that there is a need to standardize or revise the collection of 24HDR data.


Subject(s)
Diet , Health Education , Humans , Cross-Sectional Studies , Health Education/methods , Food , Surveys and Questionnaires
4.
Nutrients ; 15(18)2023 Sep 17.
Article in English | MEDLINE | ID: mdl-37764803

ABSTRACT

The Expanded Food and Nutrition Education Program (EFNEP) is a federally funded program that teaches nutrition education to adults and youth with low-income. EFNEP is funded throughout the United States including federal territories. The purpose of EFNEP is to provide nutrition education. Evaluation for adult programs includes pre/post surveys and pre/post 24-h diet recalls (24HDR). A validated standard of dietary measures, 24HDR are useful when collected as designed: one-on-one by a trained professional. In EFNEP, 24HDR are collected in group settings by EFNEP peer educators who often have not received a college degree or any formal education in nutrition. The purpose of this study was to explore attitudes and behaviors of EFNEP peer educators regarding how they collect diet recalls in a group setting, their perceptions of how adult participants feel about the recalls, and the benefits and challenges of using recalls. Online interviews were conducted with EFNEP peer educators across the U.S. Peer educators recognized the importance of collecting the recall data but identified several challenges such as time, resources, and participant reluctance to complete the recall. Program evaluation through methods like the 24HDR is important to measure outcomes and inform program improvements but also needs to include how evaluation can benefit participants and minimize data collection burden. Future research needs to examine the validity of collecting recalls in a group setting compared to other measures of diet quality.


Subject(s)
Diet , Health Education , Adolescent , Humans , Adult , United States , Health Education/methods , Food , Feeding Behavior , Surveys and Questionnaires
5.
Nutrients ; 15(4)2023 Feb 08.
Article in English | MEDLINE | ID: mdl-36839221

ABSTRACT

During the COVID-19 pandemic, U.S. food assistance programs allowed the use of program benefits to order groceries online. We examined relationships between the food environment, food assistance, online grocery ordering, and diet quality among adults from one low-income, low food access community in Northeastern Connecticut during the pandemic. Via online survey, adults (n = 276) reported their perceived home and store food environments, food assistance participation, whether they ordered groceries online, and consumption frequency and liking of foods/beverages to calculate diet quality indices. Those who ordered groceries online (44.6%) were more likely to participate in food assistance programs and report greater diet quality. Perceived healthiness of store and home food environments was variable, with the ease of obtaining and selecting unhealthy foods in the neighborhood significantly greater than healthy foods. Healthier perceived home food environments were associated with significantly higher diet qualities, especially among individuals who participated in multiple food assistance programs. Ordering groceries online interacted with multiple measures of the food environment to influence diet quality. Generally, the poorest diet quality was observed among individuals who perceived their store and home food environments as least healthy and who did not order groceries online. Thus, ordering groceries online may support higher diet quality among adults who can use their food assistance for purchasing groceries online and who live in low-income, low-access food environments.


Subject(s)
COVID-19 , Food Assistance , Adult , Humans , Pandemics , Diet , Food , Poverty , Food Supply
6.
Crit Rev Food Sci Nutr ; 63(24): 6723-6737, 2023.
Article in English | MEDLINE | ID: mdl-35225098

ABSTRACT

Childhood obesity is a national epidemic, and many efforts have been made to understand its risk factors. The purpose of this review was to provide an updated account of the observational studies evaluating the relationship between 100% fruit juice intake and obesity in children and adolescents, and to highlight the major risk factors that may impact this relationship. PubMed and Scopus were searched for terms related to fruit juice and childhood obesity, and studies assessing 100% fruit juice intake in participants ≤ 19 years old, with obesity-related outcomes (BMI or adiposity), and published before March 9, 2021 were included. There were 17 prospective cohort and 14 cross-sectional studies included in the analysis. Overall, the evidence does not support a relationship between 100% fruit juice intake and measures of obesity in most children. There is some evidence to suggest a minor positive association in some overweight or very young children, but due to fundamental differences and limitations in methodology, further investigation is required. Significant gaps in literature on this topic exist particularly in regards to randomized clinical trials in children, and in studies in racially diverse populations.


Subject(s)
Pediatric Obesity , Adolescent , Humans , Child , Child, Preschool , Young Adult , Adult , Pediatric Obesity/epidemiology , Fruit and Vegetable Juices , Body Mass Index , Cross-Sectional Studies , Prospective Studies , Beverages , Fruit
7.
Nutrients ; 14(14)2022 Jul 15.
Article in English | MEDLINE | ID: mdl-35889862

ABSTRACT

Once the general public accepts that dietary cholesterol is not a concern for cardiovascular disease risk, foods that have been labeled as high-cholesterol sources, including eggs, may be appreciated for their various other dietary components. One of the nutrients in eggs that deserves further discussion is egg protein. Egg protein has been recognized to be highly digestible and an excellent source of essential amino acids, with the highest attainable protein digestibility-corrected amino acid score. Egg protein has been shown to decrease malnutrition in underdeveloped countries, possibly increase height in children, and protect against kwashiorkor. Egg protein has been demonstrated to be important to skeletal muscle health and protective against sarcopenia. Egg protein also can decrease appetite, resulting in a reduction in the caloric intake from the next meal and weight reduction. Other protective effects of egg protein addressed in this review include protection against infection as well as hypotensive and anti-cancer effects.


Subject(s)
Egg Proteins , Eggs , Amino Acids, Essential , Child , Diet , Energy Intake , Humans
8.
Metab Syndr Relat Disord ; 20(8): 429-439, 2022 10.
Article in English | MEDLINE | ID: mdl-35704900

ABSTRACT

There is a clear correlation between gut microbiota, diet, and metabolic outcomes. A diet high in fiber has been shown to decrease inflammation, increase insulin sensitivity, and reduce dyslipidemias whereas a diet high in fat and sugar leads to dyslipidemia, insulin resistance, and low-grade inflammation. There is recent evidence suggesting that the human gut microbiota has a significant role in the development or the resolution of metabolic syndrome (MetS) and associated conditions. Leading a stressful, sedentary lifestyle with limited or no physical activity and consuming an unhealthy diet high in saturated fat, simple carbohydrates, and sodium and low in dietary fiber and in high-quality protein are some of the contributing factors. Unhealthy diets have been shown to induce alterations in the gut microbiota and contribute to the pathogenesis of MetS by altering microbiota composition and disrupting the intestinal barrier, which leads to low-grade systemic inflammation. In contrast, healthy diets can lead to changes in microbiota that increase gut barrier function and increase the production of anti-inflammatory biomarkers. This review aims at providing a more in-depth discussion of diet-induced dysbiosis of the gut microbiota and its effect on MetS. Here, we discuss the possible mechanisms involved in the development of the metabolic biomarkers that define MetS, with an emphasis on the role of sugar and dietary fiber in microbiome-mediated changes in low-grade systemic inflammation and metabolic dysfunction.


Subject(s)
Gastrointestinal Microbiome , Insulin Resistance , Metabolic Syndrome , Humans , Metabolic Syndrome/complications , Diet , Dietary Fiber , Inflammation/complications , Biomarkers , Sugars/pharmacology , Sodium , Diet, High-Fat
9.
Nutrients ; 14(11)2022 May 29.
Article in English | MEDLINE | ID: mdl-35684077

ABSTRACT

Food insecurity is a broad and serious public health issue in the United States, where many people are reporting lack of access to healthy foods. The reduced availability of healthy, affordable foods has led to increased consumption of energy-dense and nutrient-poor foods, resulting in increasing the risk for many chronic diseases such as obesity, cardiovascular diseases, and type 2 diabetes mellitus. Thus, identifying promising approaches to increase access to healthy foods through improving the food environment is of importance. The purpose of this review article is to highlight how the food environment affects directly a person's food choices, and how to increase access to healthy foods through improving environmental approaches. The literature search was focused on finding different approaches to improve food security, primarily those with an impact on food environment. Overall, potential solutions were gathered through multilevel environmental approaches, including nutrition education and peer education, community-based participatory research, and policy changes in supplemental nutrition programs. A recommendation to reduce food insecurity is learning to create meals with a variety of seasonal fruits and vegetables purchased from affordable farmers' markets.


Subject(s)
Diabetes Mellitus, Type 2 , Food Assistance , Access to Healthy Foods , Diabetes Mellitus, Type 2/prevention & control , Food Supply/methods , Fruit , Humans , Poverty , United States , Vegetables
10.
Nutrients ; 14(10)2022 May 20.
Article in English | MEDLINE | ID: mdl-35631279

ABSTRACT

Plant-based (PB) diets are considered a healthy dietary pattern; however, eggs are not always included in this dietary regime. We hypothesized that the addition of two eggs per day would increase HDL cholesterol as well as plasma lutein, zeaxanthin and choline in individuals with metabolic syndrome (MetS). In this randomized controlled crossover intervention, we recruited 30 participants (49.3 ± 8 y) with MetS who followed a PB diet for 13 weeks. A registered dietitian advised all subjects on food selection and followed them through the intervention to ensure compliance. Participants underwent a 2-week washout with no eggs or spinach (a source of dietary lutein and zeaxanthin) and were randomly allocated to consume spinach (70 g) with either two eggs (EGG) or the equivalent amount of egg substitute (SUB) for breakfast for 4 weeks. After a 3-week washout, they were allocated the alternate breakfast. A total of 24 participants (13 women/11 men) finished the intervention. Plasma lipids, glucose, insulin, anthropometrics, plasma lutein, zeaxanthin, choline and trimethylamine oxide (TMAO) were assessed at baseline and the end of each intervention. When we compared individuals consuming the EGG versus the SUB breakfast, we observed a lower body weight (p < 0.02) and a higher HDL cholesterol (p < 0.025) after the EGG diet. There were no differences in plasma LDL cholesterol, triglycerides, glucose, insulin, or blood pressure. The number of large HDL particles measured by NMR was higher after EGG (p < 0.01) as compared to SUB. Plasma choline was higher in both treatments (p < 0.01) compared to baseline (8.3 ± 2.1 µmol/L). However, plasma choline values were higher in EGG (10.54 ± 2.8 µmol/L) compared to SUB (9.47 ± 2.7 µmol/L) p < 0.025. Both breakfasts increased plasma lutein compared to baseline (p < 0.01), while plasma zeaxanthin was only increased in the egg intervention (p < 0.01). These results indicate that consuming a plant-based diet in combination with whole eggs increases plasma HDL cholesterol, choline and zeaxanthin, important biomarkers in subjects with MetS.


Subject(s)
Insulins , Metabolic Syndrome , Biomarkers , Cholesterol, HDL , Choline , Cross-Over Studies , Diet , Diet, Vegetarian , Female , Glucose , Humans , Lutein , Male , Zeaxanthins
11.
Nutrients ; 14(6)2022 Mar 19.
Article in English | MEDLINE | ID: mdl-35334959

ABSTRACT

Low-income Americans tend to have poor diet quality and disease prevalence overall. Mobile food pantries aim to improve these outcomes, and have rarely been studied. This cross-sectional study aimed to evaluate the association between diet quality and health status in mobile food pantry users. Data were collected from two mobile food pantry sites in Northeastern Connecticut (n = 83). Sociodemographic food security and diet quality data were collected. Overall, diet quality was low among all participants with intakes of fruits, vegetables, and whole grains of concern. Participant adherence to the 2020−2025 US Dietary Guidelines were low, with no participants meeting recommendations for whole grains. Obesity, diabetes, and hypertension prevalence in this population exceeded national averages. After adjusting for covariates, hypertension was associated with higher dairy and added sugar intake, as well as a greater intake of added sugar from sugar-sweetened beverages (p < 0.05). Although results were not statistically significant, participants with obesity, diabetes, and hypertension showed a trend of having lower adherence to the guidelines than those without these chronic diseases. Questions assessing participant interest in changing their diets were also posed, indicating overall high interest in learning about current diet quality and weight improvement.


Subject(s)
Diet , Food Supply , Connecticut/epidemiology , Cross-Sectional Studies , Health Status , Humans
12.
Nutrients ; 13(9)2021 Aug 25.
Article in English | MEDLINE | ID: mdl-34578817

ABSTRACT

OBJECTIVE: This pilot study assessed the effectiveness and acceptability of personalized nutrition intervention for mobile food pantry users. METHODS: The 8-week intervention recruited 25 participants in the control (n = 13) and in the treatment (n = 12) groups (60% obese). Personalized nutrition and health reports were generated based on baseline dietary intake and health status. The treatment group received weekly phone counseling and nutrition education, while the control group was only contacted to ensure compliance. The primary outcomes were 8-week changes in weight and diet quality score, assessed by the Healthy Eating Index. RESULTS: The acceptability of the intervention was assessed by the eligibility rate, recruitment rate (62.5%), and drop-out rate (36%). Following the intervention, there was a significant decrease in weight (mean ± standard deviation, -2.3% ± 2.4%) among all participants (p < 0.05). Diet-quality improved (4.54% in treatment vs. 0.18% in control), but was ultimately non-significant (p = 0.284). CONCLUSIONS AND IMPLICATIONS: A personalized nutrition education intervention in mobile food pantry users may be an acceptable and effective intervention to encourage weight loss through dietary improvements.


Subject(s)
Counseling/methods , Diet/methods , Food Assistance/statistics & numerical data , Health Education/methods , Nutritional Status , Patient Satisfaction/statistics & numerical data , Connecticut , Feasibility Studies , Female , Humans , Male , Middle Aged , Pilot Projects , Rural Population
13.
Nutrients ; 13(4)2021 Mar 27.
Article in English | MEDLINE | ID: mdl-33801729

ABSTRACT

Poor diet quality among low-income populations is a major contributing factor to their poor health and wellbeing, and thus is a focus of many government aid programs. Mobile food pantries are an increasingly popular method of emergency food assistance, targeting the communities most affected by food insecurity; however, little is known about the dietary characteristics of mobile food pantry users. This study aims to characterize the diet quality and nutrient adequacy level and examine its association with sociodemographic characteristics among mobile food pantry users in Windham County, Connecticut. Surveys to assess food insecurity, diet composition, and sociodemographic characteristics were administered to 83 adult food pantry users. Participants (n = 40) completed a three-day dietary record for analysis of diet quality, and were found to have inadequate intakes of fruits, vegetables, whole grains and dairy, as well as some related micronutrients. At least 30% of participants had intakes below the Estimated Average Requirement (EAR) for vitamins A, C, E, calcium, zinc, magnesium, and folate. Intakes of added sugar, sugar sweetened beverages, and saturated fat were also above recommendations according to the United States Dietary Guidelines. Certain sociodemographic factors affected diet quality among this sample. For example, being male was associated with increased sugar-sweetened beverage and added sugar intake. This characterization of mobile pantry users will serve as a reference for developing nutrition education and determining the effectiveness of future interventions.


Subject(s)
Diet/standards , Food Assistance , Poverty , Adult , Aged , Diet Surveys , Female , Humans , Male , Middle Aged , Nutrition Assessment , Nutritional Status , Socioeconomic Factors , Young Adult
14.
Child Obes ; 15(7): 443-450, 2019 10.
Article in English | MEDLINE | ID: mdl-31335173

ABSTRACT

Background: Limited evidence-based guidance is available to parents regarding optimal child feeding practices to prevent early childhood obesity from birth to 24 months of age (B-24). The objective of this qualitative study was to determine current child feeding practices, barriers to implementation, and educational needs of parents of varying socioeconomic backgrounds as it relates to responsive feeding to prevent early obesity in children of ages B-24. Methods: One-on-one interviews were conducted with parents (n = 66) of children ages B-24 from both low-and non-low-income households. Interviews were audiorecorded, transcribed verbatim, and analyzed with NVivo using classical qualitative analysis. Results: Participants were primarily female (91%), married (53%), low-income (59%), and were not first-time parents (72%). The results revealed overarching themes, including parents' reported need for information on preparing child meals, optimal dietary intake, affordable healthy foods, promoting child self-feeding, and food and nutrition knowledge. Low-income parents more frequently requested guidance about identifying affordable healthy options and overfeeding while non-low-income parents requested information about food allergens, transitioning to solids, and creating structured mealtimes. Conclusions: Additional and focused outreach to parents of children ages B-24 regarding optimal feeding practices is needed especially on topics related to complementary feeding during the transition to solid food.


Subject(s)
Feeding Behavior/physiology , Health Knowledge, Attitudes, Practice , Parenting , Parents/education , Adult , Child, Preschool , Cooking , Female , Humans , Infant , Infant Care , Male , Pediatric Obesity/prevention & control , Poverty
15.
Int J Sport Nutr Exerc Metab ; 29(3): 303-308, 2019 May 01.
Article in English | MEDLINE | ID: mdl-30160549

ABSTRACT

Insufficient 25-hydroxyvitamin D [25(OH)D] levels are associated with high resting blood pressure (BP). However, the relationship between 25(OH)D and the peak systolic BP (SBP) response to exercise, a predictor of future hypertension, has yet to be investigated. We sought to examine the relationship among serum 25(OH)D and the peak SBP response to a graded exercise stress test (GEST) among a large sample (n = 417) of healthy men (49%) and women (51%) over a broad age range (20-76 years; mean age: 44.1 ± 0.8 years). We hypothesized that individuals with clinically insufficient 25(OH)D would have a greater peak SBP response to a GEST compared to individuals with sufficient 25(OH)D levels. Fasting serum 25(OH)D, anthropometrics, resting BP, and peak exercise SBP were obtained at the baseline visit of a larger clinical trial (STOMP; NCT01140308). Mean 25(OH)D levels were 36.1 ± 0.7 ng/ml, with ∼35% of individuals classified as insufficient (<30 ng/ml). Average resting BP was 119 ± 13 mmHg/75 ± 10 mmHg, with 52.3% considered to have normal BP, while 25.2% had elevated BP and 22.5% had established hypertension. The peak SBP response to a GEST was similar between individuals with sufficient (48 ± 19 mmHg) versus insufficient (48 ± 18 mmHg) 25(OH)D (p = 1.000). One unexpected finding emerged such that individuals with sufficient 25(OH)D had higher resting SBP (120 ± 14 mmHg vs. 117 ± 13 mmHg; p = .020) than individuals with insufficient 25(OH)D. In contrast to our hypothesis, 25(OH)D levels were not associated with the peak SBP response to a GEST. Baseline 25(OH)D levels were positively correlated with resting SBP; however, the magnitude of this effect is likely not clinically meaningful.


Subject(s)
Blood Pressure , Exercise , Vitamin D/analogs & derivatives , Adult , Aged , Exercise Test , Female , Humans , Hypertension , Male , Middle Aged , Rest , Vitamin D/blood , Young Adult
16.
Diabetes ; 61(11): 2718-27, 2012 Nov.
Article in English | MEDLINE | ID: mdl-22751700

ABSTRACT

Obesity is characterized by adipose tissue (AT) macrophage (ATM) accumulation, which promotes AT inflammation and dysfunction. Toll-like receptor 4 (TLR4) deficiency attenuates AT inflammation in obesity but does not impede the accumulation of ATMs. The purpose of the current study was to determine whether TLR4 deficiency alters ATM polarization. TLR4(-/-) and wild-type mice were fed a low-fat, high-monounsaturated fat (HF(MUFA)), or a high-saturated fat (HF(SFA)) diet for 16 weeks. Further, we used a bone marrow transplant model to determine the influence of hematopoietic cell TLR4 signaling. The metabolic and inflammatory responses to high-fat feeding and ATM phenotype were assessed. Global and hematopoietic cell TLR4 deficiency, irrespective of recipient genotype, produced a shift in ATM phenotype toward an alternatively activated state, which was accompanied by reduced AT inflammation. Despite the observed shift in ATM phenotype, neither global nor hematopoietic cell TLR4 deficiency influenced systemic insulin sensitivity after high-fat feeding. Results of the current study suggest that TLR4 directly influences ATM polarization but question the relevance of TLR4 signaling to systemic glucose homeostasis in obesity.


Subject(s)
Adipose Tissue/immunology , Macrophage Activation , Macrophages/immunology , Obesity/immunology , Toll-Like Receptor 4/metabolism , Adipose Tissue/metabolism , Adiposity , Animals , Bone Marrow Transplantation/immunology , Chimera , Diet, High-Fat/adverse effects , Fatty Liver/etiology , Fatty Liver/immunology , Fatty Liver/metabolism , Fatty Liver/pathology , Liver/immunology , Liver/metabolism , Liver/pathology , Macrophages/metabolism , Macrophages, Peritoneal/immunology , Macrophages, Peritoneal/metabolism , Male , Mice , Mice, Inbred C57BL , Mice, Knockout , Non-alcoholic Fatty Liver Disease , Obesity/etiology , Obesity/metabolism , Obesity/pathology , Signal Transduction , Toll-Like Receptor 4/genetics , Triglycerides/metabolism , Weight Gain
17.
J Nutr Biochem ; 22(2): 101-8, 2011 Feb.
Article in English | MEDLINE | ID: mdl-21145721

ABSTRACT

Fish oil improves several features of metabolic syndrome (MetS), such as dyslipidemia, insulin resistance and hepatic steatosis. Fish oil may mediate some of its beneficial effects by modulating the storage and/or secretory functions of adipose tissue (AT). The storage of triglycerides in AT is regulated by the availability of free fatty acids and the degree of lipolysis in AT. Fish oil has been shown to reduce lipolysis in several studies, indicating improved triglyceride storage. Importantly, AT secretes a variety of adipokines and fish oil feeding is associated with remarkable changes in the plasma levels of two key adipokines, adiponectin and leptin. Much attention has been focused on the contribution of adiponectin in fish oil-mediated improvements in MetS. However, emerging evidence also indicates a role of leptin in modulating the components of the MetS upon fish oil feeding. In addition to improving the storage and secretory functions of AT, fish oil, and the n-3 fatty acids found in fish oil, has been shown to reduce inflammation in AT. These effects may be in part a result of activation of peroxisome proliferator-activated receptor γ or inhibition of Toll-like receptor 4. Thus, there is compelling evidence that fish oil mediates its beneficial effects on MetS by improving AT storage and secretory functions and by reducing inflammation.


Subject(s)
Adipose Tissue/metabolism , Dietary Fats, Unsaturated/metabolism , Dietary Supplements , Fish Oils/pharmacology , Adiponectin/blood , Fatty Acids, Nonesterified/blood , Fatty Acids, Omega-3/pharmacology , Humans , Leptin/blood , Lipolysis , PPAR gamma/metabolism , Toll-Like Receptor 4/metabolism
18.
Lipids ; 45(10): 947-62, 2010 Oct.
Article in English | MEDLINE | ID: mdl-20820932

ABSTRACT

We recently showed that a hypocaloric carbohydrate restricted diet (CRD) had two striking effects: (1) a reduction in plasma saturated fatty acids (SFA) despite higher intake than a low fat diet, and (2) a decrease in inflammation despite a significant increase in arachidonic acid (ARA). Here we extend these findings in 8 weight stable men who were fed two 6-week CRD (12%en carbohydrate) varying in quality of fat. One CRD emphasized SFA (CRD-SFA, 86 g/d SFA) and the other, unsaturated fat (CRD-UFA, 47 g SFA/d). All foods were provided to subjects. Both CRD decreased serum triacylglycerol (TAG) and insulin, and increased LDL-C particle size. The CRD-UFA significantly decreased plasma TAG SFA (27.48 ± 2.89 mol%) compared to baseline (31.06 ± 4.26 mol%). Plasma TAG SFA, however, remained unchanged in the CRD-SFA (33.14 ± 3.49 mol%) despite a doubling in SFA intake. Both CRD significantly reduced plasma palmitoleic acid (16:1n-7) indicating decreased de novo lipogenesis. CRD-SFA significantly increased plasma phospholipid ARA content, while CRD-UFA significantly increased EPA and DHA. Urine 8-iso PGF(2α), a free radical-catalyzed product of ARA, was significantly lower than baseline following CRD-UFA (-32%). There was a significant inverse correlation between changes in urine 8-iso PGF(2α) and PL ARA on both CRD (r = -0.82 CRD-SFA; r = -0.62 CRD-UFA). These findings are consistent with the concept that dietary saturated fat is efficiently metabolized in the presence of low carbohydrate, and that a CRD results in better preservation of plasma ARA.


Subject(s)
Diet, Carbohydrate-Restricted , Diet , Dietary Carbohydrates/administration & dosage , Dietary Fats/administration & dosage , Dietary Fats/blood , Fatty Acids/administration & dosage , Fatty Acids/blood , Adult , Arachidonic Acid/blood , Body Weight , Dietary Carbohydrates/blood , Dietary Carbohydrates/urine , Dietary Fats/metabolism , Fatty Acids/pharmacology , Humans , Male , Middle Aged
19.
Nutr Res ; 30(2): 96-103, 2010 Feb.
Article in English | MEDLINE | ID: mdl-20226994

ABSTRACT

We hypothesized that consuming eggs for breakfast would significantly lower postprandial satiety and energy intake throughout the day. Using a crossover design, 21 men, 20 to 70 years old, consumed 2 isoenergetic test breakfasts, in a random order separated by 1 week. The macronutrient composition of the test breakfasts were as follows: (EGG, % CHO/fat/protein = 22:55:23) and (BAGEL, % CHO/fat/protein = 72:12:16). Fasting blood samples were drawn at baseline before the test breakfast and at 30, 60, 120, and 180 minutes after breakfast. After 180 minutes, subjects were given a buffet lunch and asked to eat until satisfied. Subjects filled out Visual Analog Scales (VAS) during each blood draw and recorded food intake the days before and after the test breakfasts. Plasma glucose, insulin, and appetite hormones were analyzed at each time point. Subjects consumed fewer kilocalories after the EGG breakfast compared with the BAGEL breakfast (P< .01). In addition, subjects consumed more kilocalories in the 24-hour period after the BAGEL compared with the EGG breakfast (P < .05). Based on VAS, subjects were hungrier and less satisfied 3 hours after the BAGEL breakfast compared with the EGG breakfast (P < .01). Participants had higher plasma glucose area under the curve (P < .05) as well as an increased ghrelin and insulin area under the curve with BAGEL (P < .05). These findings suggest that consumption of eggs for breakfast results in less variation of plasma glucose and insulin, a suppressed ghrelin response, and reduced energy intake.


Subject(s)
Blood Glucose/metabolism , Dietary Carbohydrates/administration & dosage , Dietary Proteins/administration & dosage , Eggs , Energy Intake/drug effects , Ghrelin/blood , Satiation/drug effects , Adult , Aged , Appetite/drug effects , Area Under Curve , Bread , Cross-Over Studies , Feeding Behavior , Humans , Hunger/drug effects , Insulin/blood , Male , Middle Aged , Young Adult
20.
J Womens Health (Larchmt) ; 19(1): 139-45, 2010 Jan.
Article in English | MEDLINE | ID: mdl-20088670

ABSTRACT

BACKGROUND: We have shown previously that in overweight premenopausal women, changes in macronutrient composition and increasing the number of steps walked per day favorably affect body composition and plasma lipid profiles. As a follow-up, we evaluated the effect of moderate carbohydrate intake and increased physical activity on inflammation and regulation of appetite. METHODS: Seventy premenopausal women with a body mass index (BMI) between 25 and 37 kg/m(2) participated in a 10-week weight loss intervention program consisting of the following macronutrient energy distribution: 40% carbohydrate, 30% fat, and 30% protein, in addition to a progressive increase in the number of steps taken per day. Plasma adiponectin, intracellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), leptin, and ghrelin levels were assessed at baseline and after 10 weeks. RESULTS: Subjects reduced body weight by 4.5%, waist circumference (WC) by 6.4%, and trunk fat by 4.6%. Plasma insulin and insulin resistance assessed by homeostasis model assessment (HOMA) were reduced after 10 weeks (p < 0.01). Plasma adiponectin was increased by 11% (p < 0.05), and ICAM-1 levels were decreased (p < 0.05) after 10 weeks. A negative correlation was found between changes in insulin and changes in adiponectin between baseline and 10 weeks (r = -0.397, p < 0.01), indicating a role of adiponectin in increasing insulin sensitivity. In addition, plasma ghrelin levels were increased by 17% (p < 0.001), indicating a signal for increased appetite associated with weight loss. CONCLUSIONS: These studies indicate that weight loss interventions involving moderate changes in dietary carbohydrate and increases in physical activity favorably affect insulin sensitivity and decrease inflammation.


Subject(s)
Adipokines/blood , Diet, Reducing , Exercise/physiology , Premenopause/physiology , Weight Loss/physiology , Adult , Appetite Regulation/physiology , Body Composition/physiology , Body Mass Index , Carnitine/administration & dosage , Carnitine/urine , Dietary Carbohydrates/administration & dosage , Dietary Fats/administration & dosage , Dietary Proteins/administration & dosage , Double-Blind Method , Female , Ghrelin/blood , Humans , Inflammation/prevention & control , Intercellular Adhesion Molecule-1/blood , Leptin/blood , Middle Aged , Premenopause/blood , Vascular Cell Adhesion Molecule-1/blood
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