Weight Loss Program Research Articles

Effect of telemedicine interventions on weight loss: A systematic review and meta-analysis.

Obesity and its associated health challenges represent a pressing global concern. Telemedicine interventions offer a promising solution for effective weight loss support. This study examines the impact of telemedicine interventions on weight loss support. We conducted a search of PubMed, Scopus, and Web of Science, starting from their inception. Both researchers systematically selected articles and extracted data using a designated data collection form. To assess the risk of bias in the included studies, we employed the Mixed Methods Appraisal Tool. Publication bias was evaluated through funnel plots and Egger's and Begg's tests. Utilizing the gathered data, we computed the standardized mean differences (Hedges's g) between the treatment and control groups. We estimated heterogeneity variance using the Q test and I2 statistic. The analysis was carried out using Stata 17.0. Out of a total of 2626 retrieved articles, 30 studies were included in the analysis. Telemedicine interventions can cause weight loss in people (Hedges's g = 0.09, 95% CI: -0.13, 0.39; p-value < 0.001). The type of telemedicine intervention and target population were a significant moderator of the heterogeneity between studies (p < 0.05). This study highlights the potential of telemedicine interventions as valuable tools in weight loss programs. Embracing these technologies can enhance the effectiveness of weight management strategies for diverse populations.

Enhanced detection of diabetes mellitus using novel ensemble feature engineering approach and machine learning model

Diabetes is a persistent health condition led by insufficient use or inappropriate use of insulin in the body. If left undetected, it can lead to further complications involving organ damage such as heart, lungs, and eyes. Timely detection of diabetes helps obtain the right medication, diet, and exercise plan to lead a healthy life. ML approach has been utilized to obtain rapid and reliable diabetes detection, however, existing approaches suffer from the use of limited datasets, lack of generalizability, and lower accuracy. This study proposes a novel feature extraction approach to overcome these limitations by using an ensemble of convolutional neural network (CNN) and long short-term memory (LSTM) models. Multiple datasets are combined to make a larger dataset for experiments and multiple features are utilized for investigating the efficacy of the proposed approach. Features from the extra tree classifier, CNN, and LSTM are also considered for comparison. Experimental results reveal the superb performance of CNN-LSTM-based features with random forest model obtaining a 0.99 accuracy score. This performance is further validated by comparison with existing approaches and k-fold cross-validation which shows the proposed approach provides robust results.

Supporting Weight Loss Among Parents of Children With a Disability: Lessons Learned From a Single-Arm Pilot Study.

This study assessed weight change in the parents of children with disabilities following a 12-week, remotely delivered weight loss program focused on lifestyle modifications and found a significant median weight reduction of 3 kg from baseline to week 12.

The effect of MIND diet on sleep status, anxiety, depression, and cardiometabolic indices in obese diabetic women with insomnia: study protocol for a randomized controlled clinical trial {1}

BackgroundThe Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet is a plant-based and anti-inflammatory diet that has the ability to protect and manage cardiovascular and nervous system diseases. Regarding that insomnia and cardiovascular problems are x`common in type 2 diabetes mellitus (T2DM), the present study will assess the effectiveness of the MIND dietary pattern on sleep quality, cardiometabolic indicators, and other psychological indicators.MethodsForty-four overweight/obese T2DM women with insomnia, aged 30–65 years, will voluntarily participate in this randomized controlled trial and will be randomized to receive either a MIND low-calorie diet (MLCD) or a low-calorie diet (LCD) over a 3-month period. Before and after the study, sleep quality, some biochemical and cardiometabolic indices, cortisol, brain-derived neurotrophic factor (BDNF), high-sensitivity C-reactive protein (hs-CRP), and oxidative stress indicators will be assessed.DiscussionThe use of dietary interventions in the management of T2DM complications is practical and safe. This research seeks to investigate the capacity of the MIND diet in the management of insomnia and cardiovascular problems of DM. It is expected that the results of this research will provide new perspectives on using an ideal dietary regimen to treat these health conditions.Trial registrationIRCT20181111041611N8. Registered on August 7, 2023. https://www.irct.ir/trial/71772

Effects of Human Milk Oligosaccharide 2′-Fucosyllactose Ingestion on Weight Loss and Markers of Health

Background: 2′-Fucosyllactose (2′-FL) is an oligosaccharide contained in human milk and possesses prebiotic and anti-inflammatory effects, which may alleviate skeletal muscle atrophy under caloric restriction. This study evaluated the impacts of 12 weeks of 2′-FL supplementation in conjunction with exercise (10,000 steps/day, 5 days/week) and energy-reduced (−300 kcals/day) dietary interventions on changes in body composition and health-related biomarkers. Methods: A total of 41 overweight and sedentary female and male participants (38.0 ± 13 years, 90.1 ± 15 kg, 31.6 ± 6.6 kg/m2, 36.9 ± 7% fat) took part in a randomized, double-blind, and placebo-controlled study. The participants underwent baseline assessments and were then assigned to ingest 3 g/day of a placebo (PLA) or Momstamin 2′-F while initiating the exercise and weight-loss program. Follow-up tests were performed after 6 and 12 weeks. Data were analyzed using general linear model statistics with repeated measures and mean changes from baseline values with 95% confidence intervals (CIs). Results: No group × time × sex interaction effects were observed, so group × time effects are reported. Participants in both groups saw comparable reductions in weight. However, those with 2′-FL demonstrated a significantly greater reduction in the percentage of body fat and less loss of the fat-free mass. Additionally, there was evidence that 2′-FL supplementation promoted more favorable changes in resting fat oxidation, peak aerobic capacity, IL-4, and platelet aggregation, with some minimal effects on the fermentation of short-chain fatty acids and monosaccharides in fecal samples. Moreover, participants’ perceptions regarding some aspects of the functional capacity and ratings of the quality of life were improved, and the supplementation protocol was well tolerated, although a small, but significant, decrease in BMC was observed. Conclusions: The results support contentions that dietary supplementation of 2′-FL (3 g/d) can promote fat loss and improve exercise- and diet-related markers of health and fitness in overweight sedentary individuals initiating an exercise and weight-loss program. Further research is needed to explore the potential health benefits of 2′-FL supplementation in both healthy and elderly individuals (Registered clinical trial #NCT06547801).

Intriguing astrocyte responses in CA1 to reduced and rehabilitated masticatory function: Dorsal and ventral distinct perspectives in adult mice

ObjectiveWe sought to investigate the plasticity of diet-induced changes in astrocyte morphology of stratum lacunosum-moleculare (SLM) in CA1. DesignThree diet regimes were adopted in 15 mice, from the 21st postnatal day to 6 months. The first diet regimen was pellet feed, called Hard Diet (HD). The second, with reduced masticatory, received a pellet-diet followed by a powdered-diet, and it was identified as Hard Diet/Soft Diet (HD/SD). Finally, the group with rehabilitated masticatory was named Hard Diet/Soft Diet/Hard Diet (HD/SD/HD). In the end, euthanasia and brain histological processing were performed, in which astrocytic immunoreactivity to glial-fibrillary-acidic-protein (GFAP) was tested. In reconstructed astrocytes, morphometric analysis was performed. ResultsAstrocyte morphometric revealed that changes in masticatory regimens impact astrocyte morphology. In the dorsal CA1, switching from a hard diet to a soft diet led to reductions in most variables, whereas in the ventral, fewer variables were affected, highlighting regional differences in astrocyte responses. Cluster analysis further showed that diet-induced changes in astrocyte morphology were reversible in the dorsal region, but not in the ventral region, indicating a persistent impact on astrocyte diversity and complexity in the ventral even after rehabilitation. Correlation tests between astrocyte morphology and behavioral performance demonstrated disrupted relationships under masticatory stress, with effects persisting after rehabilitation. ConclusionChanges in the diet result in significant alterations in astrocyte morphology, suggesting a direct link between dietary modulation and cellular structure. Morphometric analyses revealed distinct alterations in astrocyte morphology in response to changes in the masticatory regimen, with both dorsal/ventral regions displaying notable changes. Moreover, the regional differential effects on astrocytes underscore the complexity of mastication on neuroplasticity and cognitive function.

Effect of Mediterranean Diet Composition on Metabolic Syndrome Marker Parameters Based on NCEP-ATP III Criteria

Metabolic syndrome refers to a cluster of metabolic abnormalities in the body, including central obesity, elevated blood pressure, high glucose, and triglyceride levels, as well as low HDL levels. The Mediterranean diet, known for its specific composition, is believed to mitigate metabolic syndrome. This study aims to assess the impact of adhering to the Mediterranean diet on individuals with metabolic syndrome. It employs an observational analytic approach, utilizing a prospective cohort of 30 participants who followed the Mediterranean diet regimen as part of their treatment at a clinic in Bandung City. Systematic Random Sampling was used to select participants, and blood pressure was measured at the beginning (T1) and end (T2) of the study. Data on dietary intake were collected using the Relative Mediterranean Diet (rMED) scale via a Food Frequency Questionnaire (FFQ). Statistical analyses, including ANOVA and Tukey’s post-hoc test, were conducted to compare dietary compositions across adherence groups and to assess the impact of the Mediterranean diet on metabolic syndrome components. The findings revealed that participants, with an average age of 57.94 years and 69.44% female, experienced significant improvements in certain metabolic syndrome components, such as waist circumference (fruit and nut intake), triglycerides (vegetable intake), HDL (meat intake), and blood glucose (dairy product intake). However, no significant effects were observed for legumes, seeds, fish, and olive oil components on MetS. Keywords: components, Mediterranean diet, MetS, NCEP-ATP III

Enhancing dietary analysis: Using machine learning for food caloric and health risk assessment.

In the wake of growing concerns regarding diet-related health issues, this study investigates the application of machine learning methods to estimate the energy content and classify the health risks of foods based on the USDA National Nutrient Database. The caloric content of foods was estimated using the nutritional composition (i.e., carbohydrates, protein, total lipid, and total sugar content) and classified based on their weighted health risks, considering their carbohydrate, lipid, and glycemic index levels. The algorithms used for modeling include multiple linear regression (MLR), K-nearest neighbors, support vector machine, random forest regression (RFR), gradient-boosted regression, decision trees (DT), and deep neural networks. The MLR model demonstrated high accuracy on the training dataset (R2=0.99, mean absolute error [MAE]=7.71kcal, and root mean squared error [RMSE]=17.89kcal) and testing dataset (R2=0.99, MAE=7.75kcal, and RMSE=18kcal) in energy estimation, indicating its effectiveness in dietary assessment. The RFR and DT models were useful in categorizing foods into low-health-risk foods, but their performance was reduced in medium and high-health-risk groups. This research contributes to developing tools that could aid in personalized dietary planning and public health interventions to mitigate diet-related health risks. PRACTICAL APPLICATION: This study applies machine learning to estimate how many calories are in food and to understand the health risks different foods might have. By investigating the fats, cholesterol, and sugars in food items listed in a public database, we can better plan diets or develop apps that help people make healthier eating choices. This work aims to improve public access to nutritional information, supporting efforts to combat diet-related diseases through educational materials and applications that guide dietary choices in various settings.

Non-Pharmacological Management of Gestational Diabetes Mellitus with a High Fasting Glycemic Parameter: A Hospital-Based Study in Vietnam

Background/Objectives: The prevalence of gestational diabetes mellitus (GDM) is increasing at an alarming rate worldwide. Delayed management can lead to adverse composite outcomes for both mother and her offspring. To our knowledge, the clinical association between glycemic parameters and the results of the non-pharmacological GDM approach remains limited; thus, this study aimed to address this important clinical issue in the literature. Methods: This was a retrospective cross-sectional study of 174 Vietnamese pregnant women with the positive oral glucose tolerance test (OGTT) for a high fasting glycemic parameter at Hung Vuong Hospital from 04/2022 to 07/2022. This study aimed to evaluate the success rate of GDM with an elevated index of fasting glycemic concentration which was managed after 2 weeks of a dietary regimen combined with adequate physical activities and to reveal its related factors. Results: Out of 174 singleton pregnancies that met the inclusion criteria, 103 GDM pregnant women were successfully managed after 2 weeks of monitoring (59.2%; 95% confidence intervals (CI): 51.9–66.5). The study revealed a fair correlation between the corresponding test of blood glucose at OGTT and after 2 weeks of GDM management (r = 0.270–0.290, p &lt; 0.0001). The GDM pregnant women with an elevated fasting glycemic parameter and with any of elevated 1 h or 2 h blood glucose levels and in cases of three elevated glycemic parameters (fasting, 1 h, and 2 h blood glucose at the initial results of OGTT) reduced the success rate of glycemic control to 56.5%, 49.2%, respectively, compared to the group with solely a high fasting index of blood glucose (69.6%). The pregnant women who participated in high-intensity sports activities related to a two-fold increase in success rate compared with the group engaging in light and moderate-intensity physical activity. Conclusions: The success rate of glycemic control in GDM women was highest in the group with solitary fasting hyperglycemia and lower in the contributory groups with two and three high parameters. The application of diet therapy plus physical activities among GDM pregnant women is potentially necessary to improve the effectiveness of treatment, minimize adverse pregnancy outcomes, and reduce substantially the hospitalization rate.

Dietary menu planning using seasonal and regional foods and inpatient contentment

Dietary menu planning using seasonal and regional foods and inpatient contentment

Randomized Clinical Trial to Increase Self-Monitoring of Physical Activity and Eating Behaviors in Youth: A Feasibility Study

ABSTRACT Introduction Mobile health (mHealth) has the potential to reduce reliance on in-person healthcare visits, making monitoring of health, eating, and physical activity less burdensome. There is a great need to develop and test mHealth tools for pediatric weight loss programs to enhance clinical practice. This study aimed to test the feasibility of utilizing a tailored suite of mHealth components to augment an existing evidence-based in-person pediatric weight management program. Method Using a two-group randomized superiority trial design, participants who completed baseline measurement were randomized to Brenner Families in Training (Brenner FIT) or Brenner FIT + mHealth (Brenner mFIT), and follow-up measures were completed at 3 and 6 months. Feasibility was assessed in terms of screening, recruitment, randomization, retention, and the assessment process. Acceptability was assessed in terms of program completion, and implementation fidelity was assessed in terms of logging activity, frequency of self-monitoring, goal setting, and retention rate. Results Overall, 173 dyads were eligible for enrollment based on inclusion criteria. Twenty-five dyads consented to participate. Sixteen dyads completed baseline psychosocial questionnaires, eight dyads completed at least two 24-h dietary recalls, and 20 (youth) participants returned accelerometers. Of the 14 dyads who completed enrollment, seven dyads were each randomized into the intervention and control groups, with ten and five dyads retained at three and six months, respectively. A total of four caregivers and two youth who utilized the website for goal setting set at least one goal, all seven youth linked their activity tracker, and most downloaded at least one video (two youth) or podcast (six caregivers). Conclusions Our results suggest that the assessment protocol was overly burdensome, the intervention had low acceptability, and the study as designed was not feasible to complete. Future studies should evaluate barriers and facilitators to the uptake of mHealth.

A pilot randomized controlled trial of a telenutrition weight loss program supported with telemonitoring and health coaching in overweight and obese adults

A pilot randomized controlled trial of a telenutrition weight loss program supported with telemonitoring and health coaching in overweight and obese adults

Dietary Lithospermum erythrorhizon ethanol extract alleviates soybean meal-induced enteritis by improving immune tolerance profile of pearl gentian grouper (Epinephelus fuscoguttatus ♀ × E. lanceolatus ♂)

The aquaculture industry has a shortage of objected protection against soybean meal-induced enteritis (SBMIE) in carnivorous fish caused by soybean meal feed. Our initial study discovered that Lithospermum erythrorhizon (LE) ethanol extract has potential application value in improving SBMIE. A feeding trial (for eight weeks) was conducted to investigate LE ethanol extract on pearl gentian grouper SBMIE of protection to clarify the influence of LE ethanol extract on the immune tolerance profile. Three hundred and sixty pearl gentian groupers were administered one of three distinct dietary regimes: 1) 100 % fish meal (FM); 2) soybean meal substitution of 50 % fish meal protein (SBM); 3) SBM diet +0.2 % LE ethanol extract (SBMLE). Each treatment included three 1000 L cisterns—each of cisterns with 30 fish. The preliminary weight of the fish varied between 72.01 g and 72.50 g. Growth performance results showed that WGR and SGR were significantly decreased in the SBM group (P < 0.05), while there was no significant difference between the FM and SBMLE groups. There was no significant difference in survival among the three groups. The results showed that SBM-fed fish exhibited enteritis manifested by mucosal fold shortening, lamina propria widening, decreased serum immune markers (IgM, C3, and C4), and up-regulated expression of pro-inflammatory cytokines (il17 and il12) and immune-related gene (tlr3, and tlr9). The addition of 0.2 % LE ethanol extract to the SBM diet, reversed the above symptoms, and anti-inflammatory cytokine (tgf-β1), gene expression increased significantly (P < 0.05). Intestinal transcriptome analysis exhibited that the DEGs between the FM group and the SBM group were mainly enriched in FoxO signaling pathway, while the DEGs between the SBM group and the SBMLE group were enriched in MAPK signaling pathway and FoxO signaling pathway. The RT-qPCR results also revealed changes in MAPK/FoxO signaling pathway-related genes, including Dusp1, jund, Irs2b, fbxo32, and ccng2. Overall, Lithospermum erythrorhizon ethanol extract may alleviate SBMIE by regulating MAPK/FoxO signaling pathway, which would be beneficial for enhancing the immune tolerance and utilization efficiency of pearl gentian groupers to dietary soybean meal.

Sensory evaluation, nutritional profile and chromatographic characterization of Panjeeri laddu: A traditional nutritional supplement for postpartum healthcare

BACKGROUND: Panjeeri laddu (PL), a traditional dietary regime popular in Himachal Pradesh and other northern parts of India, is utilized for postpartum care. This study aimed to evaluate the nutritional profile, sensory analysis of PL, which may highlight its potential health benefits. In addition, HPTLC and FTIR analysis were performed to further characterize the prepared PL. METHODS: Proximate analysis of PL was done to determine the content of moisture, protein, fat, carbohydrates, ash, and fiber—mineral analysis quantified calcium, sodium, potassium, magnesium, iron, and zinc. High-performance liquid chromatography-based vitamin analysis identified the presence of B vitamins (B1, B3, B5, B6, and B9) and vitamin E. Fatty acid profiles were determined using gas chromatography. A sensory analysis of the prepared PL was conducted through 20 volunteers. RESULTS: The analysis revealed that PL is a calorie-dense food source, rich in protein (15.23 g/100 g), fat (38.10 g/100 g), and carbohydrates (40.18 g/100 g). Micronutrient analysis identified the presence of essential minerals and B vitamins. The fatty acid profile indicated the presence of both monounsaturated and polyunsaturated fats. DISCUSSION: The nutritional profile of PL suggests its potential to contribute to energy intake and provide essential nutrients during postpartum recovery. Investigation of the bioactive compounds present in PL and their potential health benefits is warranted. Understanding these properties could support the traditional use of PL in postpartum care and pave the way for future research on its potential therapeutic applications. CONCLUSION: This study provides a foundation for understanding the nutritional value of PL. The results support the continued exploration of PL’s potential role in promoting postpartum health and well-being.

Effectiveness of tailored diet plan on nutritional status among cancer patients discharged with nasogastric tube in India - A randomized controlled trial

Effectiveness of tailored diet plan on nutritional status among cancer patients discharged with nasogastric tube in India - A randomized controlled trial

Optimizing nutrition, diet, and lifestyle communication in GLP-1 medication therapy for weight management: A qualitative research study with registered dietitians

BackgroundThis qualitative study used semi-structured interviews to examine registered dietitians’ perspectives on diet, nutrition, and lifestyle communication for patients on GLP-1 medications for obesity management. MethodsThrough in-depth interviews with registered dietitians, this research identifies elements that could improve both the efficacy of GLP-1 medication therapies and patient adherence. Resultsindicate that a comprehensive approach, integrating patient communication with proactive management of side effects and ongoing lifestyle counseling, is essential for optimizing treatment outcomes. ConclusionKey findings include the importance of using visual and metaphorical aids to improve understanding, the necessity for structured lifestyle programs, and the pivotal role of personalized diet plans. These insights offer valuable directions for enhancing patient care and formulating clinical practices around the use of GLP-1 receptor agonist medications.

Opportunities and Solutions: Unintentional Weight Loss.

In this narrative review, the authors provide a concise overview of current information on the identification and management of unintentional weight loss (UWL) in clinical care settings. Unintended weight loss can occur widely and is often multifactorial. Clinicians should use screening tools to identify those experiencing UWL. Management includes nutrition assessments and diagnosing malnutrition when present. Nutrition counseling by a registered dietitian nutritionist should address the causes and manifestations of UWL. Individualized dietary plans with supplementation and/or nutrition support and medications for appetite stimulation may be considered. The presence of UWL at the end of life should be addressed in line with the patient's care plan. Managing UWL is part of the multidisciplinary care teams' responsibilities.

The Health and Nutritional Benefits of Fruits and Vegetables to Reduce the Risk of Obesity and High Blood Lipids

Background: Vegetables and fruits are an important part of a healthy diet and help with growth and support body functions and physical, mental, and social well-being at all ages. They can also help prevent all forms of malnutrition, such as undernutrition, micronutrient deficiencies, obesity, and overweight, and reduce the risk of non-communicable diseases. World Health Organization consumption of at least 400 grams of fruits and vegetables per day, or five servings of 80 grams each, and the reasons for the sad fact that most people do not eat enough of them to maintain a healthy life for the sake of obesity treatment and weight reduction. Objectives: The aim of the study was to investigate the effects of increasing fruit and vegetable intake rich in antioxidants and vitamins on people at risk of obesity and high levels of blood fat and to provide education about its benefits and the amount of daily rations. Methods: This a descriptive cross-sectional study, 160 obese women underwent to Aspetar ospital in Misurata city during The period (October–December 2022) and they were divided into two groups of 80 women per group. The first group was presented with a weight-loss diet devoid of vegetables and fruits. The second group was given a weight-loss diet rich in vegetables, including cucumber, lettuce, tomato, and fruits (kiwi, apple, and orange). For three consecutive months. Results: The findings were a decrease in weight with an average of 8 kg per woman for the first group and 15 kg per woman for the second group, and the average cholesterol and triglycerides were 280 mg/100 dL of blood and 230 mg/100 dL of blood, respectively, for the women of the first group. While it was 150 mg/100 dL blood and 90 mg/100 dL blood for the women of the second group, with some daily light exercise for all women in the two groups. Conclusion: This study indicates that consumption of three to five portions/day of fruit and vegetables is highly associated with prevention and a low risk of obesity, high blood fat, cholesterol, and cardiovascular disease. Therefore, we recommend relying on eating vegetables and fruits daily to reduce weight and blood fats, improve health, and nourish the body.

Prospective study investigating the influence of nutritional intervention on biochemical profiles in patients with recurrent urolithiasis.

Urolithiasis, commonly known as kidney stones, is a condition significantly impacted by dietary habits. The objective of this study is to evaluate the impact of a tailored dietary plan on the crystalluria and biological parameters of patients with different types of kidney stones over a 3-month period. We conducted a prospective study of 3 months. The study involved patients with recurrent nephrolithiasis. Alongside the medical consultation, a comprehensive dietary survey was performed to assess the patients' nutritional habits. Urinary parameters, including volume, calcium, oxalate, uric acid, and power of hydrogen (pH), were evaluated both before and after the dietary intervention. 69 patients were involved. There were 17 patients diagnosed with cystine lithiasis, 33 with oxalocalcic lithiasis and 19 with uric lithiasis. After 3 months, only 32 patients revisited for follow-up. There were significant changes (p = 0.002 and 0.04) in urine crystalluria for cystinic and uric lithiasis. For the urinary oxalate variation, there was a significant decrease from T1 (before dietary intervention) to T2 (after dietary intervention), with levels dropping from 0.289 ± 0.10 umol/l to 0.215 ± 0.079 umol/l (p = 0.02).Regarding urinary calcium (calciuria), there was a trend toward a decrease from T1 to T2, although the change was not statistically significant, with levels decreasing from 2.42 ± 1.68 umol/l to 2.14 ± 1.62 umol/l (p = 0.1). Our research underscores the favorable effects of a tailored and well-balanced diet on both the crystalluria and biological parameters of individuals with recurrent lithiasis.

Effects of Religious Fasting on Markers of Oxidative Status in Vitamin D-Deficient and Overweight Orthodox Nuns versus Implementation of Time-Restricted Eating in Lay Women from Central and Northern Greece

Background/Objectives: The Mediterranean diet has been widely suggested to exert significant beneficial effects on endothelial oxidative status and cardiometabolic health. Greek Orthodox monasteries, due to their specific nutritional and sartorial habits, comprise a population thatstrictly adheres to nutritional patterns with restricted eating and a plant-based subset of the Mediterranean diet, often accompanied by profound hypovitaminosis D. Time-restricted eating (TRE) is also adopted bya large part of the general lay Greek population for health-promoting reasons, without restrictions on animal product consumption, as imposed by Orthodox religious fasting. However, the comparative effects of these nutritional patterns on oxidative stress markers remain scarce. Methods: The present study attempted to evaluate the effects of Christian Orthodox fasting (COF) in a group of vitamin D-deficient and overweight Orthodox nuns from Central and Northern Greece compared to the implementation of TRE, a 16:8 dietary regimen (16 h of food abstinence and 8 h of feeding) in a cohort of adult women from the general population from the same region with regard to markers of endothelial oxidative status. A group of 50 women from two Orthodox monasteries in Northern Greece and one group of 50 healthy lay women were included. During the enrollment, a detailed recording of their dietary habits was performed, along with a scientific registry of their demographic and anthropometric characteristics (via bioimpedance). The Orthodox nuns followed a typical Orthodox fasting regimen [daily feeding window (8 a.m.–4 p.m.)], whereas the lay women followed a TRE 16:8 regimen with the same feeding time-window with a recommendation to follow a low-fat diet, without characteristics of the Mediterranean diet. We included a complete biochemical analysis, as well as calciotropic profiles [calcium—Ca, albumin, parathyroid hormone—PTH, and 25-hydroxyvitamin D—25(OH)D] and markers of TAC (total antioxidant capacity), GSH (glutathione),and thiobarbituric acid reactive substances (TBARSs) concentrations as markers of oxidative status. Results: All the groups were compared at the baseline regarding their calcium, PTH, and 25(OH)D concentrations, with no statistically significant differences between the groups apart from higher PTH levels in the nuns due to lower 25(OH)D levels. The Orthodox nuns manifested a lower median GSH compared to the controls (6.0 vs. 7.2, p 0.04) and a higher median TAC (0.92 vs. 0.77, p &lt; 0.001). The TBARS comparisons showed no significant difference between the two groups. No significant associations of oxidative status with 25(OH)D, PTH, and the markers of glucose homeostasis were evident. Conclusions: The results of this small pilot study indicate that both dietary regimens have advantages over the oxidative markers compared to each other, with increased TAC in the group of Orthodox nuns after a 16-week period of COF compared to a 16:8 TRE and increased GSH concentrations in the lay women group. Future randomized trials are required to investigate the superiority or non-inferiority between these dietary patterns in the daily clinical setting.