The Fertility Diet: Foods That Support Conception
What you eat affects your fertility more than you might think. Here are the dietary changes with the strongest evidence behind them.
Research consistently shows that diet influences fertility in both men and women. While no food guarantees conception, certain dietary patterns are associated with better reproductive outcomes.
The Mediterranean Diet
The Mediterranean diet — rich in vegetables, fruits, whole grains, legumes, fish, and olive oil — is the most studied dietary pattern for fertility. Multiple studies link it to improved IVF outcomes, better sperm quality, and reduced risk of ovulatory infertility.
Foods to Emphasize
Leafy greens (spinach, kale, arugula) are high in folate, which is critical for early fetal development. Fatty fish (salmon, sardines, mackerel) provide omega-3s that support hormonal balance. Berries and colorful vegetables deliver antioxidants that protect eggs and sperm from oxidative damage. Whole grains and legumes stabilize blood sugar, which is important for hormonal health.
Foods to Limit
Trans fats (found in some processed foods) are strongly associated with ovulatory infertility. High-glycemic foods (white bread, sugary drinks, processed snacks) can disrupt insulin and hormone levels. Excessive alcohol consumption reduces fertility in both men and women.
Protein Sources
Research from the Harvard Nurses' Health Study suggests that replacing some animal protein with plant protein may improve ovulatory function. Try swapping one or two meat-based meals per week for beans, lentils, or tofu.
Dairy
The evidence on dairy is mixed. Some research suggests full-fat dairy may be preferable to low-fat for fertility, though this finding hasn't been consistently replicated. If you tolerate dairy, moderate consumption of full-fat options appears fine.
Hydration
Adequate hydration supports cervical mucus production and overall reproductive health. Aim for at least 8 glasses of water daily. Limit caffeine to under 200mg per day (about one 12oz coffee).