Clinical Research Directory

Inclusion criteria: * Age: 20 to 49 years * Gender: female * Agrees to participate in the study (has signed a consent form) Exclusion criteria: * Menopause (absence of menstruation for at least 12 months, unless the absence is due to hormonal contraception) or post-menopause * Pregnancy Reasons for excluding a participant during the study: * Inability to participate in the study * Wishes to discontinue participation * Incomplete data provided Additional inclusion criteria for including subpopulations in the second part of the study: Vegetarians: * Have followed a vegetarian diet for at least 2 years and do not consume meat or fish more than once a month * Consume eggs and dairy products more than once a month Vegans: \- Have followed a vegan diet for at least 2 years and do not consume any animal products more than once a month