Ralf Jäger
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View article: Effects of Tart Cherry Extract Supplementation on Plasma Urate and C-Reactive Protein Levels in Healthy Adults: a Randomized Controlled Trial
Effects of Tart Cherry Extract Supplementation on Plasma Urate and C-Reactive Protein Levels in Healthy Adults: a Randomized Controlled Trial Open
Tart cherry (Prunus cerasus L.) extracts are plant extracts rich in polyphenolic compounds, particularly anthocyanins, which exhibit antioxidant and anti-inflammatory properties. These bioactives may help reduce plasma urate and C-reactive…
View article: From Science to Dressing Room: Dietary Supplements for Elite Soccer Performance
From Science to Dressing Room: Dietary Supplements for Elite Soccer Performance Open
Purpose: The aim of this review is to provide an overview of the effects of commonly used dietary supplements on soccer performance and to bridge the gap between scientific evidence and their practical application by practitioners working …
View article: Impact of liposomal delivery on coenzyme Q10 absorption: a double-blind, placebo-controlled, randomized trial
Impact of liposomal delivery on coenzyme Q10 absorption: a double-blind, placebo-controlled, randomized trial Open
Background Coenzyme Q10 (CoQ-10) plays a vital role in cellular energy production and protection against oxidative stress. However, its absorption from orally administered forms is limited due to its poor water solubility and relatively la…
View article: Synbiotic Supplementation with Probiotics and Omega-3 Fatty Acids Enhances Upper-Body Muscle Strength in Elite Swimmers: Evidence for Gut–Muscle Axis Modulation During Race-Pace Training
Synbiotic Supplementation with Probiotics and Omega-3 Fatty Acids Enhances Upper-Body Muscle Strength in Elite Swimmers: Evidence for Gut–Muscle Axis Modulation During Race-Pace Training Open
Background: The gut–muscle axis is believed to influence training adaptations through microbiota-derived signals and the regulation of inflammation, but evidence in elite swimmers is limited and mixed. This study aims to determine whether …
View article: Effects of 8-weeks of supplementation with a plant protein blend + creatine monohydrate on changes in maximal strength in resistance-trained males and females
Effects of 8-weeks of supplementation with a plant protein blend + creatine monohydrate on changes in maximal strength in resistance-trained males and females Open
Background Protein supplementation supports strength training adaptations with questions still evident over which source of protein is superior. Creatine monohydrate is well established for its ability to support exercise training adaptati…
View article: Body composition changes in resistance-trained adults Following 8-Weeks of supplementation with a combination of plant protein and creatine monohydrate
Body composition changes in resistance-trained adults Following 8-Weeks of supplementation with a combination of plant protein and creatine monohydrate Open
Introduction Adequate dietary protein supports body composition changes while resistance training. Due to its complete amino acid profile, whey protein has routinely outperformed plant-based options. However, when dosed effectively, plant-…
View article: Effects of ginger supplementation in individuals with mild to moderate joint pain I: ratings of pain, functional capacity, and markers of inflammation
Effects of ginger supplementation in individuals with mild to moderate joint pain I: ratings of pain, functional capacity, and markers of inflammation Open
Background Ginger contains gingerols, shogaols, paradols, gingerdiones, and terpenes which have shown to display anti-inflammatory properties and inhibit pain receptors. For this reason, ginger has been marketed as a natural ingredient for…
View article: Multi-Species Synbiotic Supplementation Enhances Gut Microbial Diversity, Increases Urolithin A and Butyrate Production, and Reduces Inflammation in Healthy Adults: A Randomized, Placebo-Controlled Trial
Multi-Species Synbiotic Supplementation Enhances Gut Microbial Diversity, Increases Urolithin A and Butyrate Production, and Reduces Inflammation in Healthy Adults: A Randomized, Placebo-Controlled Trial Open
Background: In healthy adults, probiotic supplementation alone does not increase Urolithin A (UroA) and rarely increases butyrate, both microbiome-derived metabolites that influence key biological functions involved in regulating gastroint…
View article: Effects of ginger supplementation in individuals with mild-to-moderate joint pain II: joint flexibility, markers of health, quality of life, analgesic use, and side effects
Effects of ginger supplementation in individuals with mild-to-moderate joint pain II: joint flexibility, markers of health, quality of life, analgesic use, and side effects Open
Background Ginger contains gingerols, shogaols, paradols, gingerdiones, and terpenes which have shown to display anti-inflammatory properties and inhibit pain receptors. For this reason, ginger has been marketed as a natural ingredient for…
View article: Effects of Ginger Supplementation on Markers of Inflammation and Functional Capacity in Individuals with Mild to Moderate Joint Pain
Effects of Ginger Supplementation on Markers of Inflammation and Functional Capacity in Individuals with Mild to Moderate Joint Pain Open
Background: Ginger contains gingerols, shagaols, paradols, gingerdiones, and terpenes, which have been shown to display anti-inflammatory properties and inhibit pain receptors. For this reason, ginger has been marketed as a natural analges…
View article: Synergistic Effects of Probiotic and Omega-3 Supplementation with Ultra-Short Race Pace Training on Sprint Swimming Performance
Synergistic Effects of Probiotic and Omega-3 Supplementation with Ultra-Short Race Pace Training on Sprint Swimming Performance Open
Background: Optimal nutrition and training regimens are essential for athletes to maximize performance and recovery. Probiotic supplementation, through the modulation of the gut microbiota, and omega-3 fatty acids, known for their anti-inf…
View article: 1-Methylxanthine enhances memory and neurotransmitter levels
1-Methylxanthine enhances memory and neurotransmitter levels Open
1-Methylxanthine (1-MX) is the major metabolite of caffeine and paraxanthine and might contribute to their activity. 1-MX is an adenosine receptor antagonist and increases the release and survivability of neurotransmitters; however, no stu…
View article: International Society of Sports Nutrition Position Stand: Long-Chain Omega-3 Polyunsaturated Fatty Acids
International Society of Sports Nutrition Position Stand: Long-Chain Omega-3 Polyunsaturated Fatty Acids Open
Position Statement: The International Society of Sports Nutrition (ISSN) presents this position based on a critical examination of the literature surrounding the effects of long-chain omega-3 polyunsaturated fatty acid (ω-3 PUFA) supplemen…
View article: Dileucine ingestion, but not leucine, increases lower body strength and performance following resistance training: A double-blind, randomized, placebo-controlled trial
Dileucine ingestion, but not leucine, increases lower body strength and performance following resistance training: A double-blind, randomized, placebo-controlled trial Open
Background The essential amino acid leucine (LEU) plays a crucial role in promoting resistance-training adaptations. Dileucine (DILEU), a LEU-LEU dipeptide, increases MPS rates, however its impact on resistance training outcomes remains un…
View article: International society of sports nutrition position stand: β-hydroxy-β-methylbutyrate (HMB)
International society of sports nutrition position stand: β-hydroxy-β-methylbutyrate (HMB) Open
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on an analysis of the literature regarding the effects of β-Hydroxy-β-Methylbutyrate (HMB). The following 12 points have been appro…
View article: Paraxanthine enhances memory and neuroplasticity more than caffeine in rats
Paraxanthine enhances memory and neuroplasticity more than caffeine in rats Open
Paraxanthine (PXN) is the main metabolite of caffeine (CAF). PXN supplementation has been shown to increase measures of cognition, memory, reasoning, response time, and sustained attention; however, no preclinical study has compared the ef…
View article: Liposomal delivery enhances absorption of vitamin C into plasma and leukocytes: a double-blind, placebo-controlled, randomized trial
Liposomal delivery enhances absorption of vitamin C into plasma and leukocytes: a double-blind, placebo-controlled, randomized trial Open
Purpose L-Ascorbic acid (vitamin C) is an essential water-soluble vitamin that plays an important role in various physiological functions, including immune health. The stability of vitamin C in the gastrointestinal tract its bioavailabilit…
View article: Body Composition and Dietary Intake Profiles of Elite Iranian Swimmers and Water Polo Athletes
Body Composition and Dietary Intake Profiles of Elite Iranian Swimmers and Water Polo Athletes Open
Background: This study aimed to conduct a detailed and comparative analysis of body composition and dietary habits in elite swimming and water polo athletes. Through the examination of these key parameters, this study seeks to compare the …
View article: Post-absorptive Myofibrillar Protein Synthesis Differs Between Pre- and Post-menopausal Females
Post-absorptive Myofibrillar Protein Synthesis Differs Between Pre- and Post-menopausal Females Open
Objectives: Elevated postabsorptive myofibrillar protein synthesis (MPS) rates have been associated with reduced anabolic sensitivity to feeding and exercise stimuli. To date, age-related muscle protein turnover investigations have used ma…
View article: Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood
Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood Open
Background: Ashwagandha has been reported to reduce stress and attenuate cognitive decline associated with inflammation and neurodegeneration in clinical populations. However, the effects as a potential nootropic nutrient in younger popula…
View article: A Dose-Response Study to Examine Paraxanthine’s Impact on Energy Expenditure, Hunger, Appetite, and Lipolysis
A Dose-Response Study to Examine Paraxanthine’s Impact on Energy Expenditure, Hunger, Appetite, and Lipolysis Open
This study investigated if paraxanthine (PX) impacts energy expenditure, lipolysis and perceptual responses. In a randomized, double-blind, placebo-controlled, crossover fashion, 21 adults (13 M, 8 F; 26.0 ± 6.4 years, 174.9 ± 11.5 cm, 81.…
View article: Paraxanthine provides greater improvement in cognitive function than caffeine after performing a 10-km run
Paraxanthine provides greater improvement in cognitive function than caffeine after performing a 10-km run Open
Results provide some evidence that pre-exercise PX ingestion improves prefrontal cortex function, attenuates attentional decline, mitigates cognitive fatigue, and improves reaction time and vigilance. Adding CA to PX did not provide additi…
View article: Glycoprotein Matrix Zinc Exhibits Improved Absorption: A Randomized Crossover Trial
Glycoprotein Matrix Zinc Exhibits Improved Absorption: A Randomized Crossover Trial Open
Biotransformation of minerals via glycosylation by microorganisms such as yeast and/or probiotics yields nutrients bound to a food matrix, resulting in increased bioavailability. The purpose of this study was to compare the effects of glyc…
View article: Effects of Supplementation with Microalgae Extract from Phaeodactylum tricornutum (Mi136) to Support Benefits from a Weight Management Intervention in Overweight Women
Effects of Supplementation with Microalgae Extract from Phaeodactylum tricornutum (Mi136) to Support Benefits from a Weight Management Intervention in Overweight Women Open
Background: Microalgae like Phaeodactylum tricornutum (PT) contain the carotenoid, fucoxanthin, which has been purported to promote fat loss, lower blood lipids, and improve glucose management. This study examined whether dietary supplemen…
View article: It’s Dead! Can Postbiotics Really Help Performance and Recovery? A Systematic Review
It’s Dead! Can Postbiotics Really Help Performance and Recovery? A Systematic Review Open
In recent years, postbiotics have increased in popularity, but the potential relevancy of postbiotics for augmenting exercise performance, recovery, and health is underexplored. A systematic literature search of Google Scholar and PubMed d…