Can your diet boost your chances of getting pregnant?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Common to both infertile and fertile couples: * Couples where both members are over eighteen and at childbearing age (≤38 for women and ≤ 45 for men) * Couples where both members agreed to take part in the study * Couples where both members completed a medical check-up and gave an informed consent. Infertile couples could be included following a medical consultation for infertility * Couples with none of its member facing any comprehension difficulty in oral or written French language * Couples where both members are affiliated to the French NHS \[national health service\] (beneficiary or legal claimant) Specific to fertile couples: \- fertile couples who naturally and spontaneously conceived a or many children with a time to conceive shorter than 12 months. Specific to infertile couples: * Infertile couples (primary, infertility, inability to conceive a child after 12 months of unprotected sexual intercourse) * Couples where the male partner has sperm parameters compatible with a natural conception * Couples where the female partner does not present anovulation, ovarian insufficiency and or any uterus-tubal pathology Exclusion Criteria: Common to both infertile and fertile couples: * couples where one of the members is under eighteen or not a childbearing age (\>38 for women an \>45 for men) * couples where at least one member refused to give written agreement for the study * couples where at least one member shows any known cardiovascular risk (diabetes, hypercholesterolemia, HBR) * couples where at least one member shows any known cardiovascular pathology, digestive pathology, no good absorptive pathology or a cancer * couples where at least one member faces some difficulty in understanding French language * couples where at least one member is not affiliated with the French NHS (beneficiary or legal claimant) Specific to fertile couples: •Couples where the woman had a miscarriage or medical termination of pregnancy with current partner Specific to infertile couples: * Couples in which it is not the first pregnancy * Couples with the male member showing either: * severe oligozoospermia (\<5 millions/ml) or a confirmed azoospermia (absence of spermatozoid in the ejaculate) * a moderate non idiopathic oligozoospermia (5-20 millions/ml), related to one more of the following factors: 1. toxic (chemotherapy, radiotherapy, drugs with a demonstrated effect on spermatogenesis) 2. infectious 3. anatomic: vasectomy, congenital anomaly (agenesis of vas deferens), long post-traumatic ischemia 4. endocrine: hypogonadotropic, hypogonadism 5. cytogenetic: klinefelter syndrome, translocation * couples whose male partner shows an abnormality of the male genital tractus : VARICOCEME undescended,testis, testicular volume \< 12ml * couples whose female partner presents an anovulation, ovarian insufficiency or a proven uterus-tubal pathology