Leucine Requirements During the Menstrual Cycle
NCT06533501 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 13
Last updated 2026-02-12
Summary
The existing guidelines for dietary amino acid intake for women are set the same as those established for men. These recommendations might not be appropriate for women, as they do not take into consideration important differences between male and female physiology, like the menstrual cycle. This study aims to determine the leucine requirements during the phases of the menstrual cycle. Leucine is an essential amino acid (cannot be made naturally in the body) and is necessary for protein synthesis, and other important cellular functions. Consuming an adequate amount daily is crucial for maintaining overall health. An innovative, non-invasive technique utilizing pre-determined diets, safe stable isotopes, and a simple breath collection method will be used. Previous work done by Elango Lab investigators has applied this method to investigate other amino acids in pregnant, non-pregnant, and lactating women.
Conditions
- Menstrual Cycle
Interventions
- OTHER
-
Dietary Leucine Intakes
Participants consume 8 hourly meals that contain the assigned test leucine intake. Each meal will provide one-twelfth of the participants' daily energy requirements as estimated by 1.5 x Resting Energy Expenditure (REE) and adequate protein at 1.0 g.kg.d, to maintain a metabolic steady state. The meals are in the form of a crystalline amino acid protein shake, and protein-free cookies.
Sponsors & Collaborators
-
University of British Columbia
lead OTHER
Study Design
- Allocation
- NA
- Purpose
- BASIC_SCIENCE
- Masking
- NONE
- Model
- SINGLE_GROUP
Eligibility
- Min Age
- 20 Years
- Max Age
- 35 Years
- Sex
- FEMALE
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 2024-03-01
- Primary Completion
- 2025-06-01
- Completion
- 2025-06-01
Countries
- Canada
Study Locations
More Related Trials
-
Requirement for Leucine in Adults Over 60 Years
NCT03506126 ·Status: COMPLETED ·Phase: NA
-
Branched Chain Amino Acids Ratio in Medical Foods
NCT03539809 ·Status: COMPLETED ·Phase: NA
-
Impact of Varying Doses of Amino Acids on Exercise, Muscular and Mental Performance
NCT01215396 ·Status: COMPLETED ·Phase: PHASE1
-
Cyclic Variation in Micronutrient Concentrations and Plasma Volume
NCT03422809 ·Status: COMPLETED
-
Effect of Supplementing a Mixed Macronutrient Beverage With Graded Doses of Leucine on Myofibrillar Protein Synthesis
NCT01885429 ·Status: COMPLETED ·Phase: NA
-
Non- Essential Amino Acid Requirements and Metabolism in Humans
NCT02009917 ·Status: COMPLETED
-
Breakfast, Exercise and Metabolic Health in Healthy Women
NCT05308381 ·Status: UNKNOWN ·Phase: NA
-
Calorie Restriction With Leucine Supplementation
NCT01757340 ·Status: COMPLETED ·Phase: NA
-
The Effects of Leucine on Body Weight
NCT00683826 ·Status: COMPLETED ·Phase: NA
-
Effect of Amino Acid on Muscle Damage
NCT03319147 ·Status: COMPLETED ·Phase: NA
-
Effects of Essential and Non-Essential Amino Acids on Post-Exercise Muscle Collagen Synthesis in Young Men
NCT04596553 ·Status: COMPLETED ·Phase: NA
-
Impact of OptiCreatine on Plasma Creatine and Gastrointestinal Effects in Males and Females
NCT07225335 ·Status: COMPLETED ·Phase: NA
-
Lysine Metabolic Availability in Children
NCT04135040 ·Status: COMPLETED ·Phase: NA
-
Oral 'Breath Test' to Measure Anabolic Sensitivity to a Protein Meal Across the Age and Physical Activity Spectrum
NCT06744491 ·Status: NOT_YET_RECRUITING
-
Upper Limit of Leucine Intake in Adults
NCT00972582 ·Status: COMPLETED ·Phase: PHASE1
-
Determination of the UL of Leucine in Healthy Elderly Men
NCT02095080 ·Status: COMPLETED ·Phase: NA
-
Branched Chain Amino Acid Plus Glucose Supplement Reduces Exercise-Induced Delayed Onset Muscle Soreness in College Females
NCT01781910 ·Status: COMPLETED ·Phase: NA
-
Metabolic Availability of Methionine and Lysine From Rice, Wheat, Chickpea and Lentil in Adult Men
NCT03674736 ·Status: COMPLETED ·Phase: NA
-
Protein Timing, Lean Mass, Strength and Functional Capacity Gains in Postmenopausal Women
NCT03372876 ·Status: COMPLETED ·Phase: NA
-
Evaluation of an Oral Nutritional Supplement on Lean Body Mass in Healthy Older Subjects.
NCT02090387 ·Status: COMPLETED ·Phase: NA
-
Impact of Amino Acids to Enhance Anabolism After Home-based Exercise
NCT04850820 ·Status: COMPLETED ·Phase: NA
-
Protein Requirements for Active Adolescent Females
NCT02800239 ·Status: COMPLETED ·Phase: NA
-
Leucine and Beta-hydroxy-beta-methylbutyrate (HMB) as Anabolic Nutrients After 36 Hours of Fasting
NCT01840098 ·Status: COMPLETED ·Phase: NA
-
Lysine Requirement of Elderly Men and Women Over 60 Years of Age
NCT02008955 ·Status: COMPLETED ·Phase: NA
-
The Effect of Oral Intake of Animal and Plant Proteins on the Metabolism in Healthy Women
NCT06045611 ·Status: ACTIVE_NOT_RECRUITING ·Phase: NA