The efficacy of essential amino acid supplementation for augmenting dietary protein intake in older adults: implications for skeletal muscle mass, strength and function

Amino Acid Supplementation and Exercise Performance - Analysis of the Proposed Ergogenic Value

Probiotic Administration Increases Amino Acid Absorption from Plant Protein: a Placebo-Controlled, Randomized, Double-Blind, Multicenter, Crossover Study

Influence of Probiotics on Dietary Protein Digestion and Utilization in the Gastrointestinal Tract

Prebiotic Effect of Fructooligosaccharides from Morinda officinalis on Alzheimer's Disease in Rodent Models by Targeting the Microbiota-Gut-Brain Axis

The health effects of low-calorie/artificial sweeteners are inconclusive, with research showing mixed findings.

A Combination of Caffeine, TeaCrine® (Theacrine), and Dynamine® (Methylliberine) Increases Cognitive Performance and Reaction Time Without Interfering With Mood in Adult Male Egamers

Improvements in concentration, working memory and sustained attention following consumption of a natural citicoline-caffeine beverage

The combined effects of L-theanine and caffeine on cognitive performance and mood

Safety of Short-Term Supplementation with Methylliberine (Dynamine®) Alone and in Combination with TeaCrine® in Young Adults

Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands--A review

The Role of Taurine in Mitochondria Health: More Than Just an Antioxidant

Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task

L-Theanine reduces psychological and physiological stress responses

Chronic choline supplementation improves cognitive and motor performance via modulating oxidative and neurochemical status in rats

Leucine supplementation and intensive training