Fertility Supplements and Dietary Recommendations

Essential Supplements

The American College of Obstetricians and Gynecologists recommends that all women planning pregnancy or capable of pregnancy must take folic acid supplementation at 5 mg daily, starting at least 1 month before conception and continuing through the first 2-3 months of pregnancy 1, 2
Women with BMI >30 kg/m² require the higher 5 mg dose of folic acid rather than the standard 0.4 mg dose 3
A daily multivitamin containing specific micronutrients, including copper, zinc, selenium, iron, thiamine, and vitamin E, should be taken prior to conception and throughout pregnancy 3
Iron supplementation at 45-60 mg of elemental iron daily improves fertility outcomes, particularly in women with iron deficiency or those following plant-based diets 3
Vitamin D supplementation should be provided to maintain serum concentrations ≥50 nmol/L, though the optimal dose for fertility enhancement requires individualized assessment based on blood levels 3

The Academy of Nutrition and Dietetics recommends adherence to a pro-fertility dietary pattern, including whole grains, soy, seafood, and low-pesticide produce, which is associated with improved ovarian reserve markers 4
Women should increase dietary intake of fatty fish, such as salmon and sardines, while avoiding high-mercury fish, such as tilefish, shark, swordfish, and king mackerel 4

The Endocrine Society recommends that women with PCOS attempting pregnancy must begin with lifestyle modifications, including 5-10% weight loss and a 500-750 kcal/day deficit, before or concurrent with supplementation 2, 8
Metformin, prescribed at 500-2000 mg daily, improves ovulation frequency and appears safe during pregnancy for women with PCOS and documented insulin resistance 2, 5, 6, 7
Iodine supplementation at 250 μg daily is recommended for women of reproductive age in areas where iodine deficiency is prevalent 4

The American College of Obstetricians and Gynecologists recommends that women undergo metabolic screening, including fasting glucose, 2-hour glucose tolerance test, lipid profile, and assessment of micronutrient status, before starting supplementation for fertility 2, 8
Specific monitoring every 3-6 months should include serum folate, vitamin B12, ferritin, iron studies, vitamin D with calcium/phosphate/magnesium/PTH, and vitamin A levels 3