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Leucine and Essential Amino Acids: study protocols

7 study groups took Leucine together with Essential Amino Acids. These are the doses the studies gave. They are not a recommendation.

Leucine: what the research found →

Dose per serving from research: Leucine

7 study groups in 4 studies say how much Leucine participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 1 g to 2.5 g, 71% of 7 study groups.

Daily doseStudy groups
1 g to 2.5 g
5
2.5 g to 5 g
2

Dose per serving from research: Essential Amino Acids

7 study groups in 4 studies say how much Essential Amino Acids participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 5 g to 10 g, 71% of 7 study groups.

Daily doseStudy groups
2.5 g to 5 g
2
5 g to 10 g
5

Commonly used together

3 of 7 study groups took Leucine and Essential Amino Acids with something else, but nothing that 3 or more different studies gave.

7 study groups

Study
The Effects of Timing of a Leucine-Enriched Amino Acid Supplement on Body Composition and Physical Function in Stroke Patients: A Randomized Controlled Trial
2020 · breakfast group · Adults aged 40 years and older admitted for rehabilitation after cerebral infarction, cerebral hemorrhage, or subarachnoid hemorrhage
1.6 g3.5 g60 days23
The Effects of Timing of a Leucine-Enriched Amino Acid Supplement on Body Composition and Physical Function in Stroke Patients: A Randomized Controlled Trial
2020 · post-exercise group · Adults aged 40 years and older admitted for rehabilitation after cerebral infarction, cerebral hemorrhage, or subarachnoid hemorrhage
1.6 g3.5 g60 days23
Leucine-enriched amino acid ingestion after resistance exercise prolongs myofibrillar protein synthesis and amino acid transporter expression in older men
2014 · LEU (leucine-enriched) · Older men after resistance exercise
3.5 g10 g1 day8
The impact of postexercise essential amino acid ingestion on the ubiquitin proteasome and autophagosomal-lysosomal systems in skeletal muscle of older men
2017 · leucine · Older men (72 ± 2 years) who performed resistance exercise
3.5 g10 g1 day8
Leucine-enriched amino acid ingestion after resistance exercise prolongs myofibrillar protein synthesis and amino acid transporter expression in older men
2014 · Control · Older men after resistance exercise
1.85 g10 g1 day7
The impact of postexercise essential amino acid ingestion on the ubiquitin proteasome and autophagosomal-lysosomal systems in skeletal muscle of older men
2017 · control · Older men (72 ± 2 years) who performed resistance exercise
1.8 g10 g1 day7
Dileucine-supplemented essential amino acids support whole-body anabolism after resistance exercise and serum-stimulated cell-based anabolism
2025 · Dileucine-containing essential amino acid supplement (DIEAA) · Healthy recreationally active adults, 27.0 ± 4.7 years old; 8 men and 4 women
1.1 g9.15 g1 day12
Leucine and Essential Amino Acids: study protocols | supp.fit