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Background and Aims: The cardiometabolic disease-associated metabolite, alpha-aminoadipic acid (2-AAA) is formed from the breakdown of the essential dietary amino acid lysine. However, it was not known whether elevated plasma levels of 2-AAA are related to dietary nutrient intake. We aimed to determine whether diet is a determinant of circulating 2-AAA in healthy individuals, and whether 2-AAA is altered in response to dietary modification., Methods and Results: We investigated the association between 2-AAA and dietary nutrient intake in a cross-sectional study of healthy individuals (N = 254). We then performed a randomized cross-over dietary intervention trial to investigate the effect of lysine supplementation (1 week) on 2-AAA in healthy individuals (N = 40). We further assessed the effect of a vegetarian diet on 2-AAA in a short-term (4-day) dietary intervention trial in healthy omnivorous women (N = 35). We found that self-reported dietary intake of animal products, including meat, poultry, and seafood, was associated with higher plasma 2-AAA cross-sectionally (P < 0.0001). Supplementary dietary lysine (5g/day) caused no significant increase in plasma 2-AAA; however, plasma 2-AAA was altered by general dietary modification. Further, plasma 2-AAA was significantly reduced by a short-term vegetarian diet (P = 0.003)., Conclusion: We identified associations between plasma 2-AAA and consumption of animal products, which were validated in a vegetarian dietary intervention trial, but not in a trial designed to specifically increase the 2-AAA amino acid precursor lysine. Further studies are warranted to investigate whether implementation of a vegetarian diet improves cardiometabolic risk in individuals with elevated 2-AAA., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Background: Some studies comparing persons with and without type 2 diabetes (T2DM) show no difference in resting energy expenditure (REE). However, the degree of glycemic control may be a crucial factor in determining energy requirements. Few studies have employed the doubly labeled water (DLW) method in persons with T2DM to objectively measure daily energy expenditure., Aims: To determine relationships between glycemia, body composition, and energy expenditure in adults with obesity and T2DM. We hypothesized that worse hyperglycemia, insulin resistance, and beta cell function would associate with higher resting and total energy expenditure (TEE)., Methods: Two cohorts age 31-50 years were included: 78 with obesity and T2DM, 19 with normal weight and no chronic disease. Baseline data from clinical biomarkers, intravenous glucose tolerance tests, DXA and MRI for body composition, and dietary intakes were used in multivariable regression models to predict REE and TEE. Additionally, comparisons were made by categorizing participants as having controlled or uncontrolled glycemia based on glucose levels ≥175 mg/dL., Results: REE was higher in participants with T2DM by 534.08 ± 74.35 kcal/d (p < 0.001). Higher fasting glucose and HbA1C levels associated with higher TEE. Abdominal SAT and VAT were also predictors in regression models accounting for 76 % of the variance in REE and 89 % of TEE. Participants with uncontrolled glycemia had 22 % higher adipose/lean ratio, two-fold higher VAT/SAT ratio, 21 % higher HOMA-IR score, and worse beta cell function (mean difference in HOMA2-%β of 74.09 ± 14.01, p < 0.001) than those with controlled glycemia. Both REE and TEE were significantly higher in uncontrolled glycemia, difference in REE of 154.17 ± 96.28 kcals/day (p = 0.04) and difference in TEE of 480.64 ± 215.45 kcals/day (p = 0.03)., Conclusions: Poor beta cell function and uncontrolled glycemia associate with higher REE and TEE in persons with obesity and T2DM. This study is registered with clinicaltrials.gov identifier: NCT01239550., Competing Interests: Conflict of interest The authors report no conflict of interest., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Background and Aims: Computed tomography (CT) defined myosteatotic, sarcopenic, and visceral obesity are associated with adverse surgical outcomes and mortality in patients with malignancies. These occult conditions may also be widely prevalent in today's general surgery patients who tend to be overweight/obese. This study identified the predominant obesity phenotypes in 906 patients aged 18-85 years who were scheduled for laparoscopic resection for benign abdominal or colorectal disease at Vanderbilt University Medical Center between 2010 and 2017., Methods: Sex and body mass index (BMI) specific cut-points were used to identify myosteatotic, sarcopenic, and visceral obesity phenotype from abdominal CT scan morphometrics. Multivariable regression modeling determined relationships between sex, obesity phenotype, and postoperative outcomes., Results: The myosteatostic + sarcopenic obesity phenotype associated with longer surgery duration and increased the likelihood for major complication (OR 1.34, 95%CI 1.01-1.74) and ICU admission (OR 1.39, 95%CI 1.04-1.90). Having myosteatotic obesity doubled the likelihood for hospital stay >7 days and discharge to a nursing home (OR 2.11, 95%CI 1.43,3.11), increasing the likelihood for readmission within 90 days. Obesity was more prevalent in females, but myosteatotic, sarcopenic, and visceral obesity were more prevalent in males, regardless of age or BMI. Males had more major complications (23.6% vs 17.7%, P = 0.03), particularly wound dehiscence or infection, and a 2-day longer hospital stay., Conclusions: This study shows that sarcopenic and myosteatotic obesity phenotypes are highly prevalent, especially in male general surgery patients, regardless of age or BMI. Importantly, sarcopenic and myosteatostic obesity may be more detrimental than visceral obesity; these phenotypes robustly associated with adverse postoperative outcomes. Future work could use these findings for design of phenotype-specific interventions to reduce patient risk and prevent outcomes that are harmful and costly., Competing Interests: Conflict of Interest Alexander Jones declares that he has no conflict of interest. Heidi J. Silver declares that she has no conflict of interest., (Copyright © 2023 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.)

Background and Aims: The type of fat consumed in animal-based western diets, typically rich in the saturated fat palmitate, has been implicated in cardiometabolic disease risk. In contrast, the most abundant mono- and polyunsaturated fats, more typical in a vegetarian or plant-based diet, potentiate less deleterious effects. This study determined differences in plasma and urine metabolites when switching from omnivorous to vegetarian diet, including metabolites involved in fatty acid utilization., Methods and Results: A prospective cohort of 38 European (EA) and African American (AA) omnivorous females were matched by age (25.7 ± 5.3y) and BMI (22.4 ± 1.9 kg/m 2 ). Pre-intervention samples were collected while subjects consumed habitual animal-based diet. Changes in metabolites were assessed by ultra-high-performance liquid chromatography-tandem mass spectroscopy (Metabolon, Inc.) upon completing four days of novel vegetarian diet provided by the Vanderbilt Metabolic Kitchen. Changes in several diet-derived metabolites were observed, including increases in compounds derived from soy food metabolism along with decreases in metabolites of xanthine and histidine. Significant changes occurred in metabolites of saturated, monounsaturated and polyunsaturated fatty acids along with significant differences between EA and AA women in changes in plasma concentrations of acylcarnitines, which reflect the completeness of fatty acid oxidation (versus storage)., Conclusion: These data suggest improvements in fatty acid metabolism (oxidation vs storage), a key factor in energy homeostasis, may be promoted rapidly by adoption of a vegetarian (plant-based) diet. Mechanistic differences in response to diet interventions must be understood to effectively provide protection against the widespread development of obesity and cardiometabolic disease in population subgroups, such as AA women., Competing Interests: Declaration of competing interest The authors have no conflicts with the present study to report., (Copyright © 2021 The Italian Diabetes Society, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition and the Department of Clinical Medicine and Surgery, Federico II University. Published by Elsevier B.V. All rights reserved.)

Malnutrition is a leading cause of morbidity and mortality, especially among older adults. However, diagnosis and treatment of malnutrition in the hospital setting are often overlooked. In recent years, quality improvement (QI) initiatives to increase the assessment and treatment of malnutrition in hospital settings have been implemented and shown to improve both patient health and economic outcomes. The Malnutrition Quality Improvement Initiative (MQii) Toolkit was designed in an effort to support hospitals seeking to implement malnutrition QI initiatives. The Toolkit has been implemented, studied, and updated for optimization of content, adaptability, and usability over several cycles of improvement from 2016-2017 at more than 50 hospital centers in the United States. The result is an open access, customizable, and user-friendly MQii Toolkit that can facilitate the implementation of malnutrition QI initiatives in individual facilities. This article introduces the MQii Toolkit, describes the process by which it was designed and improved, and orients clinical care teams to its use. FUNDING/SUPPORT: Publication of this supplement was supported by Abbott. The Academy of Nutrition and Dietetics does not receive funding for the MQii. Avalere Health's work to support the MQii was funded by Abbott., (Copyright © 2019 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.)

Background: Sucrose-isomaltase deficiency (SID) remains underdiagnosed. Absent or reduced enzyme activity promotes diarrhea, abdominal bloating, and flatulence from undigested and malabsorbed disaccharides. Frequency and severity of gastrointestinal symptoms may be associated with the type of carbohydrates consumed., Objective: To characterize the dietary intakes of patients treated with sacrosidase (Sucraid; QOL Medical) for SID and determine relationships between type of carbohydrates, sacrosidase dose, and gastrointestinal symptoms., Design: A prospective 30-day observational study., Participants/setting: Forty-nine patients treated with sacrosidase for ≥3 months were recruited from the enzyme manufacturer's nationwide clinical database between November 2014 and August 2015., Main Outcome Measures: Dietary energy and nutrient intakes reported during 24-hour diet recall interviews, frequency and severity of gastrointestinal (GI) symptoms, and sacrosidase dose., Statistical Analyses Performed: Relationships between nutrient intakes, sacrosidase dose, and GI symptoms were evaluated using Spearman ρ correlation coefficients., Results: Sacrosidase dose averaged 5.2±3.1 mL/day. Participants reported 1.3±0.9 bowel movements daily. Having less frequent GI symptoms was associated with higher sacrosidase intake. Energy intakes averaged 1,562.5±411.5 kcal/day in children, 1,964.7±823.6 kcal/day in adolescents, and 1,952.6±546.5 kcal/day in adults. Macronutrient composition averaged 44% carbohydrate, 39% fat, and 17% protein. Average carbohydrate composition was 35% starch, 8% fiber, and 59% sugars. Sucrose and fructose intakes were not associated with GI symptoms. Lactose intake was associated with diarrhea. Maltose intake was associated with nausea, distension, and reflux., Conclusions: Intakes were lower in carbohydrates and higher in fat compared with the Acceptable Macronutrient Distribution Ranges. Sucrose and fructose intakes were not associated with GI symptoms. Higher maltose and lactose intakes were associated with GI symptom frequency and severity. These findings provide evidence to guide nutrition counseling for patients treated for SID., (Copyright © 2018 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.)

Background: Malnutrition is present in 30% to 50% of hospitalized patients aged 60 years or older. As few as 3.2% of patients identified as high risk have a malnutrition diagnosis documented by medical providers. The Malnutrition Quality Improvement Initiative (MQii) aims to reduce the burden of hospital malnutrition by improving the process and delivery of care., Objective: To evaluate implementing the MQii toolkit of best practice resources for screening, diagnosis, documentation, and timeliness of malnutrition care., Design: This 6-month prospective pilot included a 3-month intervention with training and education modules tailored to type of practitioner and integrated into existing teaching and clinical workflow., Participants/setting: Forty-five health care professionals from geriatric, general medicine, and general surgery units at Vanderbilt University Hospital during January to June 2016., Main Outcome Measures: Malnutrition knowledge by 30-item questionnaire; electronic medical record (EMR) documentation; and timeliness of malnutrition screening, diagnosis, intervention, and discharge planning., Statistical Analyses: Analysis of variance was used to test change over time., Results: Malnutrition knowledge score increased 14%, from 39% to 53% (P=0.009). All patients whose nutrition screen indicated they were malnourished/high risk had registered dietitian nutritionist diagnosis of malnutrition documented in the EMR. The proportion who had medical provider (physician, nurse practitioner, or physician assistant) malnutrition diagnosis documented in the EMR increased 11.6%, from 26.7% to 38.3% (P=0.08). About 95% of malnourished/high risk patients had a documented intervention addressing malnutrition. Inclusion of malnutrition care in the discharge plan increased 4.8%, from 70.0% to 74.8% (P=0.13)., Conclusions: This pilot study demonstrated feasibility of implementing the MQii resources to improve malnutrition knowledge and professionals' skills relevant to screening, diagnosis, intervention, and timeliness of malnutrition care. By optimizing the process and delivery of malnutrition care, it is expected that the quality of clinical care provided to older adults with malnutrition or at high malnutrition risk will improve., (Copyright © 2018 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.)

Background: Dehydration is typically associated with underweight and malnutrition in long-term care (LTC) settings. Evidence is lacking regarding the influence of the rising prevalence of overweight and obesity on risk factors, prevalence, and presentation of dehydration., Objective: The aim of this study was to objectively assess hydration status and the adequacy of total water intake, and determine relationships between hydration status, total water intake, and body mass index (BMI) in LTC residents., Design: A cross-sectional analysis of baseline data was performed., Participants and Setting: Baseline data from 247 subjects recruited from eight community-based LTC facilities participating in two randomized trials comparing nutrient and cost-efficacy of between-meal snacks vs oral nutrition supplements (ONS)., Main Outcomes: Hydration status was assessed by serum osmolality concentration and total water intakes were quantified by weighed food, beverage, water, and ONS intake., Statistical Analyses: Simple and multiple linear regression methods were applied., Results: Forty-nine (38.3%) subjects were dehydrated (>300 mOsm/kg) and another 39 (30.5%) had impending dehydration (295 to 300 mOsm/kg). The variance in serum osmolality was significantly accounted for by blood urea nitrogen level, mental status score, and having diabetes (R(2)=0.46; P<0.001). Total water intake averaged 1,147.2±433.1 mL/day. Thus, 96% to 100% of subjects did not meet estimated requirements, with a deficit range of 700 to 1,800 mL/day. The variance in total water intake was significantly accounted for by type of liquid beverages (thin vs thick), type of ONS, total energy intake, total activities of daily living dependence, sex, and BMI (R(2)=0.56; P<0.001)., Conclusions: Dehydration and inadequate total water intake is prevalent in LTC residents across all BMI categories. Type of liquid beverages, type of ONS, and type of between-meal snacks are factors that could be targeted for nutrition interventions designed to prevent or reverse dehydration., (Copyright © 2016 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.)

As food intake declines with aging, older adults develop energy and nutrient inadequacies. It is important to design practical approaches to combat insufficient dietary intakes to decrease risk for acute and chronic diseases, illness, and injury. Manipulating the energy density of meals has improved energy intakes in institutional settings, but the effects on community-residing older adults who are at nutrition risk have not been investigated. The aim of this study was to determine whether enhancing the energy density of food items regularly served in a home-delivered meals program would increase lunch and 24-hour energy and nutrient intakes. In a randomized crossover counterbalanced design, 45 older adult Older American Act Nutrition Program participants received a regular and enhanced version of a lunch meal on alternate weeks. The types of foods, portion sizes (gram weight), and appearance of the lunch meal was held constant. Consumption of the enhanced meal increased average lunch energy intakes by 86% (P<0.001) and 24-hour energy intakes by 453 kcal (from 1,423.1+/-62.2 to 1,876.2+/-78.3 kcal, P<0.001). The 24-hour intakes of several key macronutrients and micronutrients also improved. These data suggest that altering the energy density of regularly served menu items is an effective strategy to improve dietary intakes of free-living older adults.

In the year 2000, multiple global health agencies and stakeholders convened and established eight tenets that, if followed, would make our world a vastly better place. These tenets are called the Millennium Development Goals. Most of these goals are either directly or indirectly related to nutrition. The United Nations has led an evaluation team to monitor and assess the progress toward achieving these goals until 2015. We are midway between when the goals were set and the year 2015. The first goal is to "eradicate extreme poverty and hunger." Our greatest responsibility as nutrition professionals is to understand the ramifications of poverty, chronic hunger, and food insecurity. Food insecurity is complex, and the paradox is that not only can it lead to undernutrition and recurring hunger, but also to overnutrition, which can lead to overweight and obesity. It is estimated that by the year 2015 noncommunicable diseases associated with overnutrition will surpass undernutrition as the leading causes of death in low-income communities. Therefore, we need to take heed of the double burden of malnutrition caused by poverty, hunger, and food insecurity. Informing current practitioners, educators, and policymakers and passing this information on to future generations of nutrition students is of paramount importance.

Objectives: We used stress process theory to identify family caregiving variables that are salient to the experience of managing older adults' home enteral nutrition. In this article, we describe the specific tasks family caregivers performed and their unique training needs in the context of caregiver preparedness, competence, effectiveness, and health care use., Design: Hospital billing lists from two university-affiliated institutions in Miami, FL, were used to identify older adults who had enteral tubes placed over a 6-month period. Consent was obtained from those older adults discharged for the first time on home enteral nutrition and their family caregivers at the first scheduled outpatient visit., Subjects/setting: In-home interviews were conducted with a diverse sample of 30 family caregivers (14 white, 8 Hispanic, 7 African-American, 1 Asian) during their first 3 months (mean=1.83+/-0.69 months) of home enteral nutrition caregiving., Statistical Analyses Performed: Descriptive statistics were used to summarize data for all variables; chi(2) analysis was conducted to analyze differences in categorical variables. One-way analysis of variance was used to analyze mean differences among caregivers grouped by ethnicity for total number of hours and tasks performed. Post hoc comparisons were conducted using the Tukey HSD test. The Spearman rho correlations were calculated to assess bivariate associations between quantitative variables., Results: Caregivers reported providing from 6 to 168 hours of care weekly (mean=61.87+/-49.67 hours), in which they performed an average of 19.73+/-8.09 caregiving tasks daily. Training needs identified were greatest for technical and nutrition-related tasks. Preparedness for caregiving scores were low (mean=1.72, maximum=4.0) and positively correlated with caregiver competence (P<.001) and self-rated caregiver effectiveness (P=.004). Preparedness negatively correlated with health care use (P=.03)., Conclusions: Caregivers of older adults on home enteral nutrition need training for multiple nutrition-related and caregiving tasks. Multidisciplinary interventions, involving dietitian expertise, are needed to better prepare caregivers to improve both caregiver effectiveness and enteral nutrition outcomes.

Family caregivers, although uncompensated, provide daily care for more than 75% of the older adults who are dependent on home care technologies such as home enteral nutrition. The high complication rates and poor outcomes seen in older adults suggest that being an effective caregiver requires specialized training in home care technologies, and dietitians need to be more actively involved in discharge planning and follow-up home care. The level of knowledge and skill mastery required for technology-dependent care, along with the chronic, intensive nature of family caregiving and the disruptions in caregivers' daily lives, lead to negative emotional and physical consequences that may interfere with caregivers' ability to do caregiving well. Recognizing that care recipients and caregivers are underserved populations, dietitians should develop their professional competencies and expand their roles in technology-dependent home care. Dietitians can thereby contribute to better outcomes for both family caregivers and older home care recipients.

The chronic, demanding nature of family caregiving for frail older adults creates a high degree of stress for caregivers, called caregiver burden. Caregiver burden compromises caregivers' emotional and physical health and health-promoting behaviors. Deterioration in caregivers' health and nutritional status may put caregivers at risk for chronic disease, diminish the ability of caregivers to provide care, and impair the quality of life experienced by caregivers and care recipients. Nutrition education may help reduce caregiver stress and maintain caregivers' health and well-being. Mediating caregiver stress may allow family caregivers to meet their societal role, which has intensified because of health care cost containment.