OOIR: Observatory of International Research

Papers

(The H4-Index of Nutrients is 96. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-11-01 to 2024-11-01.)

Article	Citations
Polyphenols and Human Health: The Role of Bioavailability	448
Beneficial Outcomes of Omega-6 and Omega-3 Polyunsaturated Fatty Acids on Human Health: An Update for 2021	440
Regulation of Neurotransmitters by the Gut Microbiota and Effects on Cognition in Neurological Disorders	322
Dietary Fibre Modulates the Gut Microbiota	305
Malnutrition in Older Adults—Recent Advances and Remaining Challenges	303
The Gut Microbiome, Aging, and Longevity: A Systematic Review	259
Plant Proteins: Assessing Their Nutritional Quality and Effects on Health and Physical Function	250
Effect of Diet and Dietary Components on the Composition of the Gut Microbiota	247
Vitamin C—Sources, Physiological Role, Kinetics, Deficiency, Use, Toxicity, and Determination	220
Nutritional Components in Western Diet Versus Mediterranean Diet at the Gut Microbiota–Immune System Interplay. Implications for Health and Disease	216
Magnesium: Biochemistry, Nutrition, Detection, and Social Impact of Diseases Linked to Its Deficiency	212
Influence of Mediterranean Diet on Human Gut Microbiota	209
A Narrative Review on Sarcopenia in Type 2 Diabetes Mellitus: Prevalence and Associated Factors	192
Curcumin, Quercetin, Catechins and Metabolic Diseases: The Role of Gut Microbiota	191
Vitamin D Supplementation Associated to Better Survival in Hospitalized Frail Elderly COVID-19 Patients: The GERIA-COVID Quasi-Experimental Study	188
The Spectrum of Malnutrition/Cachexia/Sarcopenia in Oncology According to Different Cancer Types and Settings: A Narrative Review	186
Nutrient Intake and Status in Adults Consuming Plant-Based Diets Compared to Meat-Eaters: A Systematic Review	184
Obesity and Cardiometabolic Risk Factors: From Childhood to Adulthood	181
Gut Microbiota and Complications of Type-2 Diabetes	180
Effects and Mechanisms of Probiotics, Prebiotics, Synbiotics, and Postbiotics on Metabolic Diseases Targeting Gut Microbiota: A Narrative Review	177
Ultra-Processed Foods and Nutritional Dietary Profile: A Meta-Analysis of Nationally Representative Samples	174
B Vitamins and Their Role in Immune Regulation and Cancer	169
Gut Microbiome Composition in Obese and Non-Obese Persons: A Systematic Review and Meta-Analysis	168
Nutrition, Physical Activity, and Other Lifestyle Factors in the Prevention of Cognitive Decline and Dementia	166
The Microbiota–Gut–Brain Axis and Alzheimer’s Disease: Neuroinflammation Is to Blame?	166

Magnesium in Aging, Health and Diseases	162
Vitamin A Update: Forms, Sources, Kinetics, Detection, Function, Deficiency, Therapeutic Use and Toxicity	159
Polyphenols—Gut Microbiota Interrelationship: A Transition to a New Generation of Prebiotics	157
Weight Gain Associated with COVID-19 Lockdown in Children and Adolescents: A Systematic Review and Meta-Analysis	156
Assessment of Body Composition in Athletes: A Narrative Review of Available Methods with Special Reference to Quantitative and Qualitative Bioimpedance Analysis	156
Dietary Supplements during COVID-19 Outbreak. Results of Google Trends Analysis Supported by PLifeCOVID-19 Online Studies	154
Alcohol and Cancer: Epidemiology and Biological Mechanisms	152
Short-Chain Fatty-Acid-Producing Bacteria: Key Components of the Human Gut Microbiota	150
Self-Reported Impact of the COVID-19 Pandemic on Nutrition and Physical Activity Behaviour in Dutch Older Adults Living Independently	149
Impact of Mediterranean Diet on Chronic Non-Communicable Diseases and Longevity	148
Longitudinal Weight Gain and Related Risk Behaviors during the COVID-19 Pandemic in Adults in the US	147
Physical and Psychological Effects Related to Food Habits and Lifestyle Changes Derived from COVID-19 Home Confinement in the Spanish Population	146
Black Cumin (Nigella sativa L.): A Comprehensive Review on Phytochemistry, Health Benefits, Molecular Pharmacology, and Safety	141
The Interplay between the Gut Microbiome and the Immune System in the Context of Infectious Diseases throughout Life and the Role of Nutrition in Optimizing Treatment Strategies	141
Universal School Meals and Associations with Student Participation, Attendance, Academic Performance, Diet Quality, Food Security, and Body Mass Index: A Systematic Review	137
Bioactive Compounds for Skin Health: A Review	137
Adiponectin: Structure, Physiological Functions, Role in Diseases, and Effects of Nutrition	135
Nutrition and Kidney Stone Disease	135
Edible Insects versus Meat—Nutritional Comparison: Knowledge of Their Composition Is the Key to Good Health	134
Global Impacts of Western Diet and Its Effects on Metabolism and Health: A Narrative Review	132
The Safe and Effective Use of Plant-Based Diets with Guidelines for Health Professionals	132
Fermented Foods, Health and the Gut Microbiome	131
Metabolic Syndrome: Past, Present and Future	128
Lifestyle Changes and Determinants of Children’s and Adolescents’ Body Weight Increase during the First COVID-19 Lockdown in Greece: The COV-EAT Study	128
Immunomodulatory Effects of Dietary Polyphenols	128
The Mean of Milk: A Review of Human Milk Oligosaccharide Concentrations throughout Lactation	127
Altered Gut Microbial Metabolites in Amnestic Mild Cognitive Impairment and Alzheimer’s Disease: Signals in Host–Microbe Interplay	126
The Influence of Parental Dietary Behaviors and Practices on Children’s Eating Habits	125
Effects of a 2-Week 5000 IU versus 1000 IU Vitamin D3 Supplementation on Recovery of Symptoms in Patients with Mild to Moderate Covid-19: A Randomized Clinical Trial	123
Bovine Colostrum: Its Constituents and Uses	122
Mediterranean Diet as an Antioxidant: The Impact on Metabolic Health and Overall Wellbeing	122
Unintended Consequences: Nutritional Impact and Potential Pitfalls of Switching from Animal- to Plant-Based Foods	121
Sarcopenia, Malnutrition, and Cachexia: Adapting Definitions and Terminology of Nutritional Disorders in Older People with Cancer	120
Oleanolic Acid: Extraction, Characterization and Biological Activity	119
Circadian Rhythm Dysregulation and Restoration: The Role of Melatonin	119
Role of Gut Microbiota on Onset and Progression of Microvascular Complications of Type 2 Diabetes (T2DM)	119
Associated Factors of Sarcopenia in Community-Dwelling Older Adults: A Systematic Review and Meta-Analysis	118
Role of Gut Microbiota and Their Metabolites on Atherosclerosis, Hypertension and Human Blood Platelet Function: A Review	117
Regulatory Effects of Quercetin on M1/M2 Macrophage Polarization and Oxidative/Antioxidative Balance	116
Hesperidin: A Review on Extraction Methods, Stability and Biological Activities	115
Food Fortification: The Advantages, Disadvantages and Lessons from Sight and Life Programs	114
Nutrition Management in Older Adults with Diabetes: A Review on the Importance of Shifting Prevention Strategies from Metabolic Syndrome to Frailty	113
The Utility of Body Composition Assessment in Nutrition and Clinical Practice: An Overview of Current Methodology	111
The Role of Gut Bacterial Metabolites in Brain Development, Aging and Disease	111
Short-Chain Fatty Acids, Maternal Microbiota and Metabolism in Pregnancy	111
Nutrition and Frailty: Opportunities for Prevention and Treatment	110
A Systematic Review of Worldwide Consumption of Ultra-Processed Foods: Findings and Criticisms	110
The Role of Minerals in the Optimal Functioning of the Immune System	109
Crosstalk between Gut and Brain in Alzheimer’s Disease: The Role of Gut Microbiota Modulation Strategies	108
Metabolic Syndrome and Sarcopenia	108

Vitamin D and Cancer: An Historical Overview of the Epidemiology and Mechanisms	107
The Potential Role of Gut Microbiota in Alzheimer’s Disease: From Diagnosis to Treatment	106
Magnesium in Obesity, Metabolic Syndrome, and Type 2 Diabetes	106
The Role of Diet Quality in Mediating the Association between Ultra-Processed Food Intake, Obesity and Health-Related Outcomes: A Review of Prospective Cohort Studies	105
Phenolic Acids and Prevention of Cognitive Decline: Polyphenols with a Neuroprotective Role in Cognitive Disorders and Alzheimer’s Disease	104
The Effect of Low-Fat and Low-Carbohydrate Diets on Weight Loss and Lipid Levels: A Systematic Review and Meta-Analysis	104
Food Timing, Circadian Rhythm and Chrononutrition: A Systematic Review of Time-Restricted Eating’s Effects on Human Health	104
Microplastics: A Real Global Threat for Environment and Food Safety: A State of the Art Review	102
Have Lifestyle Habits and Psychological Well-Being Changed among Adolescents and Medical Students Due to COVID-19 Lockdown in Croatia?	102
Paraprobiotics: A New Perspective for Functional Foods and Nutraceuticals	101
Changes in Consumers’ Food Practices during the COVID-19 Lockdown, Implications for Diet Quality and the Food System: A Cross-Continental Comparison	101
Patterns of Change in Dietary Habits and Physical Activity during Lockdown in Spain Due to the COVID-19 Pandemic	100
Overview of Non-Alcoholic Fatty Liver Disease (NAFLD) and the Role of Sugary Food Consumption and Other Dietary Components in Its Development	100
Anti-Inflammatory and Active Biological Properties of the Plant-Derived Bioactive Compounds Luteolin and Luteolin 7-Glucoside	100
Probiotics, Prebiotics, and Synbiotics: Implications and Beneficial Effects against Irritable Bowel Syndrome	99
Vitamin C—An Adjunctive Therapy for Respiratory Infection, Sepsis and COVID-19	98
Energy Metabolism Changes and Dysregulated Lipid Metabolism in Postmenopausal Women	98
Methylenetetrahydrofolate (MTHFR), the One-Carbon Cycle, and Cardiovascular Risks	97
Priming for Life: Early Life Nutrition and the Microbiota-Gut-Brain Axis	97
Clinical Practice in the Prevention, Diagnosis and Treatment of Vitamin D Deficiency: A Central and Eastern European Expert Consensus Statement	97
Gut Microbiota Profile and Its Association with Clinical Variables and Dietary Intake in Overweight/Obese and Lean Subjects: A Cross-Sectional Study	96