Nutritional Intervention

The goal of this study is to investigate the effect of combining olive leaf extract supplementation with endurance training (moderate intensity continuous training or sprint interval training). We hypothesize that OLE supplementation during training, as compared to training alone with placebo, will translate into better performance outcomes. More specifically, we hypothesize that the additional benefits of OLE supplementation on performance will be mediated by improved mitochondrial characteristics in skeletal muscle and increased neural activation.

Not having enough food for each person in a household, also called food insecurity, makes it hard to eat a nutritious diet, maintain a healthy weight, and manage diabetes risk. Food banks and pantries provide direct food assistance that can mitigate food insecurity among people with lower income, however, people that utilize these organizations face time, resource, and physical constraints that limit their ability to consistently select and cook healthier meals and the organizations face budget constraints that limit their bandwidth for implementing nutrition programs. This research will test four innovative nutrition programs (nutritious prepared meals, medically tailored groceries in the form of meal kits, culinary medicine, motivational text messages) to identify which are the most effective for supporting healthy eating and food security and the most cost effective for organizations to implement, as an effort to reduce diabetes risk, improve diabetes self-management, and diminish health disparities.

Sleep deprivation is a major problem in military populations. Some major consequences of sleep loss are inability to concentrate, poor work efficiency, and increase in errors during daily tasks. Ketogenic supplementation is speculated to alleviate some sleep deprivation issues via action of ketones. Ketones are small molecules that appear in the blood when following a ketogenic diet or consuming ketone supplements. The goal of this project is to find out if diet and/or ketones can improve sleep deprivation detriments over 5 days of sleep restriction (-50% from habitual sleep).

The purpose of this study is to establish a standardized nutrition intervention procedure for children with solid tumors, and to explore the effectiveness and clinical applicability of standardized nutrition management and short peptide-based enteral nutrition intervention for improving the nutritional status of children with malignant solid tumors. After admission, patients in the intervention group will receive standardized nutrition management provided by a nutrition support team composed of dietitians, nutritionists, clinicians, and nursing teams. Basic information, including diet, enteral and parenteral nutrition, nutritional status and clinical data, will be collected during the study.

Older surgical patients commonly have malnutrition, and there is evidence these patients have increased risk for poor physical and brain recovery after surgery and anesthesia. There are scientific-based recommendations to provide nutritional supplements to support recovery. However, to date these recommendations do not address a broad group of nutrients likely to reverse common deficiencies. Team members have created a palatable, broad-spectrum and stable nutritional shake that we will give to patients after surgery. We propose to test the nutritional shake in frail older surgical patients at Dartmouth Health to determine if a nutrition shake provided after surgery improves recovery of physical function and cognitive abilities. Half the patients will receive the shake and the other will receive the standard of care postoperative nutritional instructions after surgery. We will collect information regarding physical function and cognitive abilities of all the patients while in the hospital and 90 days after surgery. We will use this data to apply for funding for a powered randomized trial to determine the role of nutrition in optimizing physical and cognitive recovery from surgery in older patients.

The goal of this intervention study is to study the effect of nutritional interventions in patients with cancer receiving palliative chemotherapy. The main question it aims to answer is: Does early nutritional interventions affect body weight, quality of life, survival, muscle mass, performance status, physical function, nutritional risk and treatment tolerance in patients with cancer receiving palliative chemotherapy? Researchers will compare patients receiving the intervention to a historical control cohort following current clinical practice.

The goal of this prospective multicenter randomized controlled clinical trial is to evaluate the efficacy of a staircase nutritional intervention in reducing postoperative complications and improving long-term functional recovery in elderly patients aged ≥75 years scheduled for spinal fusion surgery. The main questions it aims to answer are: 1. Does the staircase nutritional intervention reduce the 30-day postoperative complication rate, as measured by the Comprehensive Complication Index (CCI), compared to conventional ERAS diet management? 2. Does the staircase nutritional intervention improve 1-year functional recovery, as assessed by Oswestry/Neck Disability Index (ODI/NDI) and health-related quality of life (EQ-5D), compared to conventional ERAS diet management? Researchers will compare the intervention group receiving MNA - based staircase nutritional intervention (including 14-day preadmission oral nutritional supplementation, perioperative personalized nutritional support, and postdischarge continuous management) combined with surgery-specific prehabilitation training to the control group receiving conventional ERAS diet management to see if the former leads to better clinical outcomes and long-term functional recovery. Participants will Undergo randomization: Be randomly assigned to either the intervention group or the control group. Receive assigned interventions: Control group: Receive conventional ERAS diet management, including preadmission nutritional education and early postoperative oral intake. Intervention group: Undergo MNA - based staircase nutritional intervention and surgery-specific prehabilitation training. Participate in follow-up: Complete short-term (within 90 days postoperatively) and long-term (6 and 12 months postoperatively) follow-up assessments, including laboratory tests, functional evaluations, and satisfaction surveys.

To assess the rested and postexercise muscle protein synthetic response following the ingestion of a flavourless algae protein source compared with whey protein in older adults.