RecruitingDietary supplementEffera Dose Response: Women's HealthThe goal of this clinical trial is to learn if a human equivalent lactoferrin supplement (effera®) can improve menstrual symptoms, mood, and quality of life in healthy women aged 18-40. The main questions it aims to answer are: Does effera® reduce the severity of menstrual symptoms? Does effera® improve mood, gastrointestinal symptoms, and overall well-being? Researchers will compare three different doses of effera® to a placebo (a look-alike supplement with no active ingredient) to see if the supplement improves these outcomes. Participants will: Take the assigned supplement (effera® or placebo) daily for 12 weeks Complete online questionnaires about menstrual symptoms, mood, and health Optionally share sleep and activity data from a wearable device