Phenylalanine needs during the menstrual cycle
Part of Women’s health & pregnancy clinical trials.
This study looks at how the body uses a specific amino acid (phenylalanine) during different phases of the menstrual cycle. It may help understand whether women's nutritional needs change with their cycle, and results can guide future dietary advice.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have a regular menstrual cycle (every 21–35 days) for the past year.
- You are between 20 and 35 years old.
- Your BMI is between 18 and 28.
- You are not using any hormonal birth control or hormone therapy.
- You are not pregnant, breastfeeding, or have given birth in the last 18 months.
- You have no major health conditions (like metabolic, endocrine, or immune disorders) and are not on medications that affect metabolism.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study compares how muscle protein responds to resistance exercise in women who use birth control pills versus those with natural menstrual cycles. Participants will do exercise sessions and have muscle samples taken to see how their bodies build protein.
This study looks at how different phases of the menstrual cycle can change exercise performance. You may be asked to follow a structured workout plan and track how you feel during the study.
This study looks at how aerobic exercise affects women differently depending on the phase of their menstrual cycle. It may help find the best time to exercise for better health results.
This study looks at how resistance training timed to your menstrual cycle affects muscle performance in women who have a natural cycle or take the pill.
This study looks at how high training loads affect female athletes of different skill levels and how the timing of the menstrual cycle plays a role. It helps understand how to better plan training without risking health.
This study looks at how the menstrual cycle affects physical performance in active women. You track your cycle with an app and attend 3 lab visits to do exercise tests.
Hear when a new Menstrual Cycle trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.