Trying to conceive? Nutrition can be one part of how you support your reproductive and overall health.
There is no single “fertility diet,” and no food can guarantee pregnancy. But a balanced eating pattern can provide the nutrients your body needs for hormone production, metabolic health, sperm production, and early pregnancy.
Your nutrition needs are personal. They can depend on your medical history, current health, medications, dietary preferences, and fertility diagnosis. At Piedmont Reproductive Endocrinology Group (PREG), we look at nutrition and lifestyle alongside ovulation, ovarian reserve, sperm health, fallopian tubes, reproductive anatomy, and other factors that can affect fertility.
The goal is not a perfect diet. It is informed choices paired with fertility care that is specific to you.
How Does Nutrition Support Fertility?
Food provides the energy, vitamins, minerals, protein, carbohydrates, and fats your body uses every day. These nutrients support normal cell function, hormone production, blood sugar regulation, and the physical demands of pregnancy.
Research has explored Mediterranean-style eating patterns that emphasize vegetables, fruit, whole grains, beans, fish, nuts, and olive oil. Some studies have found associations between these patterns and reproductive outcomes. That does not mean one diet causes conception or improves IVF outcomes for every patient.
The World Health Organization’s healthy diet guidance recommends a varied diet built around minimally processed foods, with limited free sugar, sodium, saturated fat, and trans fat. These are useful principles for both partners when trying to conceive.
Nutrition is one piece of fertility care. It cannot tell us whether you have blocked fallopian tubes, PMOS (formerly known as PCOS), endometriosis, diminished ovarian reserve, a uterine condition, or male infertility. Those questions require a fertility evaluation.
What Does a Fertility-Friendly Diet Look Like?
Forget the idea that fertility nutrition requires a strict meal plan or a cabinet full of “fertility-boosting” foods. Start with regular, balanced meals made from nutrient-dense foods you enjoy and can eat consistently.
Vegetables and Fruit
Vegetables and fruit provide fiber, vitamin C, folate, and antioxidants.
Leafy greens such as spinach, kale, and collard greens are good sources of folate. Citrus fruits, berries, peppers, and tomatoes provide vitamin C and other nutrients.
Fresh, frozen, and canned produce all count. Eating a variety of colors can help you get a broader mix of nutrients. No individual fruit or vegetable, however, has been shown to restore fertility.
Whole Grains and High-Fiber Carbohydrates
Whole grains and other high-fiber carbohydrates tend to digest more slowly than many refined options. This can support steadier blood sugar and insulin levels, which matter for metabolic health.
Consider foods such as:
- Oats, quinoa, barley, and brown rice
- Whole-grain bread and pasta
- Beans and lentils
- Vegetables and whole fruit
You do not need to eliminate carbohydrates. A practical approach is to replace some refined grains, baked goods, sugar-sweetened drinks, and highly processed snacks with foods that provide more fiber and nutrients.
If you have insulin resistance or PMOS (formerly known as PCOS), your nutrition needs may be more specific. Your fertility specialist can help you build a plan around your health and fertility treatment goals.
Protein From a Variety of Sources
Protein supports normal tissue and cell function. A balanced eating pattern can include eggs, fish, poultry, beans, lentils, tofu, yogurt, nuts, seeds, and lean meat.
Plant-based proteins also provide fiber and other nutrients. They can replace some servings of red or processed meat without requiring a vegetarian diet.
Processed meats and fast food can contain higher amounts of sodium and saturated fat. They do not need to be completely off the table, but meals built around minimally processed ingredients offer more nutritional value.
Healthy Fats
Monounsaturated and polyunsaturated fats are found in foods such as olive oil, avocado, nuts, seeds, and fish. These can be part of an eating pattern that is lower in trans fat and excessive saturated fat.
Omega-3 fatty acids, including docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), are found in salmon, sardines, trout, walnuts, chia seeds, and flaxseed. Fish provides the most direct dietary sources of DHA and EPA.
The World Health Organization recommends limiting saturated fat to less than 10% of total daily energy and keeping trans fat intake as low as possible. Trans fat can be found in some commercial baked goods, fried foods, and products made with partially hydrogenated oils.
Folic Acid, Vitamin D, Iron, and Other Nutrients
Walk into almost any store, and you will find supplements marketed for fertility, egg quality, sperm health, or hormone balance. More supplements do not necessarily mean better fertility care.
Talk with your PREG fertility doctor before adding supplements, especially if you are preparing for IUI, IVF, or pregnancy. Products marketed as “natural fertility” supplements may contain high doses, herbs, or ingredients that interact with medications.
Folic Acid
Folic acid is the supplemental form of folate, a B vitamin that supports early fetal development. Taking folic acid before conception and during early pregnancy reduces the risk of neural tube defects affecting the brain and spine.
The Centers for Disease Control and Prevention recommends 400 micrograms of folic acid each day for people who could become pregnant. Many prenatal vitamins contain this amount, although some patients need a different dose based on medical history or medications.
Folate is also found in leafy greens, beans, citrus fruits, fortified grains, and other foods. Those foods remain an important part of a balanced diet, but they do not necessarily replace a folic acid supplement.
If you take multiple prenatal or fertility supplements, check the labels with your fertility specialist. It is easy to duplicate folic acid or other nutrients across products.
Vitamin D and Iron
Vitamin D supports bone health and other normal body functions. Low vitamin D levels are common, but low levels do not automatically explain infertility. Depending on your history, your fertility doctor may recommend testing and a specific dose if supplementation is needed.
Iron supports red blood cell production and oxygen transport. Low iron can affect general health, and iron needs increase during pregnancy. Supplements should be based on your dietary intake, bloodwork, and medical guidance because too much iron can also cause problems.
Omega-3 and DHA Supplements
Omega-3 fatty acids are important nutrients found in fish and some plant foods. DHA also plays a role in fetal brain and eye development during pregnancy.
Research has examined higher doses of DHA during pregnancy, including doses around 1,000 mg per day in certain groups. That does not mean 1,000 mg is the right dose for everyone trying to conceive or undergoing fertility treatment.
Your appropriate dose can depend on your diet, prenatal vitamin, pregnancy status, and medical history. Talk with your PREG fertility specialist before adding a high-dose DHA supplement.
Food and Drink Choices When You’re Trying to Conceive
Preconception nutrition is about more than nutrients. Food safety and a few practical limits matter, too.
The goal is useful guidance you can actually live with, not another list of rules to memorize.
Keep Caffeine Below 200 Milligrams a Day
Do you need to give up caffeine while trying to conceive? Not necessarily.
Moderate caffeine intake is generally acceptable, but keeping total caffeine below 200 milligrams per day is a reasonable limit once you are trying to conceive or could be pregnant.
Caffeine can come from coffee, tea, chocolate, soda, energy drinks, and some medications. Energy drinks can also contain herbs or stimulants that have not been well studied during pregnancy.
Pay attention to serving sizes. A “cup” of coffee is not always the same amount of caffeine, and coffee-shop drinks may contain multiple servings.
Avoid Alcohol
There is no known safe amount of alcohol during pregnancy, and pregnancy can begin before you know it has happened.
Alcohol can also affect male fertility and semen quality, particularly with heavier use. Both partners should feel comfortable discussing alcohol intake with their fertility doctor.
Choose Lower-Mercury Fish
Fish provides protein, vitamin D, iron, zinc, iodine, and omega-3 fatty acids. If you are or could become pregnant, choose fish that is lower in mercury.
Avoid swordfish, king mackerel, shark, marlin, orange roughy, Gulf of Mexico tilefish, and bigeye tuna.
The FDA recommends two to three servings, or 8 to 12 ounces, of lower-mercury fish each week for people who are or may become pregnant. Salmon, shrimp, sardines, trout, pollock, and tilapia are among the lower-mercury options.
Check Dairy Labels
Pasteurized milk, yogurt, cottage cheese, and hard cheeses can all fit into a balanced diet.
During pregnancy, avoid soft cheeses made with unpasteurized milk because of the increased risk of foodborne illness.
You may also see claims that full-fat dairy improves fertility. Research has explored the relationship between dairy intake and ovulatory infertility, but the evidence does not support treating full-fat dairy as a fertility treatment. Choose dairy based on your nutritional needs, preferences, and medical guidance.
Focus on the Overall Pattern
Some ultra-processed foods contain more added sugar, sodium, refined grains, saturated fat, or trans fat and fewer naturally occurring nutrients. Examples include some packaged sweets, fried fast food, processed meats, sugary cereals, and sugar-sweetened beverages.
You do not need to ban every packaged food. Look at the pattern of your meals over time. When vegetables, fruit, whole grains, beans, nuts, fish, and minimally processed proteins have a regular place on your plate, there is naturally less room for foods that offer less nutritional value.
Weight, Metabolic Health, and Fertility
Weight is one part of reproductive health. It is not a complete explanation for infertility.
Body mass index, or BMI, compares weight with height. Fertility specialists sometimes use it as a screening tool, but BMI does not directly measure body composition, metabolic health, egg quality, or an individual’s ability to conceive.
Higher or lower body weight can affect hormone levels, menstrual cycles, ovulation, medication dosing, pregnancy complications, and the safety of certain procedures. Obesity is associated with changes in ovulatory function and pregnancy outcomes, but it does not explain every fertility concern.
Regular meals, physical activity, consistent sleep, and management of conditions such as diabetes or insulin resistance can support metabolic health. No single food choice should be blamed for infertility.
For some patients with polycystic ovary syndrome (PCOS), now also referred to as polyendocrine metabolic ovarian syndrome (PMOS), modest weight reduction may improve menstrual regularity and ovulation. The appropriate approach depends on the individual. Talk with your PREG fertility specialist about what makes sense for your health and fertility goals.
Exercise supports cardiovascular and metabolic health, too. Moderate activity is generally reasonable before treatment. Excessive exercise combined with inadequate energy intake, however, can disrupt menstrual cycles.
During ovarian stimulation, your fertility care team may temporarily limit high-impact exercise because the ovaries become enlarged.
At PREG, we consider weight in the context of your complete health history, fertility goals, and treatment plan.
Male Fertility Nutrition Matters, Too
Fertility nutrition is relevant to both partners.
Male fertility depends on sperm production, concentration, movement, and structure, as well as hormone levels and reproductive anatomy.
An eating pattern that includes vegetables, fruit, whole grains, beans, fish, nuts, and unsaturated fats supports overall health. Limiting tobacco, recreational drugs, excessive alcohol, processed meats, and frequent fast food is also reasonable.
Nutrition cannot tell us why semen quality may be lower. Fever, medications, hormone use, tobacco exposure, medical conditions, varicoceles, genetic factors, and blockages can all affect sperm.
That is where testing matters. A semen analysis gives your fertility care team information that a supplement or diet plan cannot.
PREG includes male factors in a complete fertility evaluation.
Fertility Nutrition Before IUI or IVF
Preparing for fertility treatment can bring up plenty of questions about what to eat, what to avoid, and whether you need to change your routine.
Here is the good news: there is no required meal plan, cleanse, or fertility food proven to control egg retrieval, fertilization, implantation, or pregnancy.
Before IUI treatment, focus on balanced meals, hydration, prescribed medications, and supplements approved by your fertility doctor. IUI candidacy depends on factors such as ovulation, sperm findings, fallopian tube health, and other aspects of your fertility, not diet alone.
Before IVF, avoid cleanses, severe calorie restriction, and major dietary changes that leave you tired or undernourished. PREG’s guidance on preparing for pregnancy before IVF supports whole foods, vegetables, fruit, lean protein, and healthy fats as part of general preparation.
Hydration supports normal circulation and overall health, but there is no universal requirement to drink exactly six to eight cups of water. Your fluid needs can vary based on body size, climate, activity, medical conditions, and treatment. Drink regularly and follow any specific instructions from your fertility care team.
You do not need to overhaul your entire routine before fertility treatment. Tell your fertility care team what you eat, what supplements you take, and what health conditions you manage. That information helps us make recommendations that fit your treatment plan.
When Nutrition Is Not the Whole Answer
At some point, nutrition questions may not be enough to answer your fertility questions.
A balanced diet cannot tell you whether you ovulate, whether your fallopian tubes are open, how ovarian reserve has changed, or whether sperm results fall within expected ranges. Those questions require an evaluation.
Consider a fertility evaluation after 12 months of trying to conceive when the person providing eggs is under 35, or after six months when that person is 35 or older.
You may want to seek guidance sooner if you have irregular or absent periods, known PMOS (formerly PCOS), or endometriosis, recurrent pregnancy loss, prior pelvic surgery, suspected male infertility, a history of cancer treatment, or another medical concern related to fertility.
Our compassionate reproductive endocrinologists evaluate these factors before discussing IVF, IUI, fertility preservation, or another fertility treatment option. Infertility treatment plans are based on your testing, medical history, and family-building goals.
Fertility Nutrition FAQs
What is the best diet for fertility?
There is no single best fertility diet. An eating pattern that includes vegetables, fruit, whole grains, beans, fish, nuts, and healthy fats supports overall and reproductive health.
Should I take a prenatal vitamin before pregnancy?
A prenatal vitamin containing at least 400 micrograms of folic acid is commonly recommended before conception. Talk with your fertility specialist about which product and dose are appropriate for you.
Can diet affect egg or sperm quality?
Diet is one of many factors associated with reproductive health. Age, genetics, medical conditions, medications, tobacco, alcohol, and environmental exposures can also matter. Nutrition cannot correct every cause of reduced egg or semen quality.
Can nutrition treat PMOS (formerly known as PCOS) infertility?
Nutrition and physical activity can support metabolic health and ovulation for some people with PMOS (formerly known as PCOS). Infertility treatment should be individualized because symptoms, hormone levels, and fertility goals vary.
Should I start fertility supplements before IVF?
Not every fertility supplement is backed by strong evidence, and some can interact with medications or duplicate nutrients in your prenatal vitamin. Review any supplement, including its ingredients and dose, with your fertility specialist before starting it.
Talk With a PREG Fertility Specialist
You do not need a perfect diet or a long list of supplements before you ask fertility questions.
At PREG, we look at your health history, fertility goals, medications, nutrition concerns, and test results together. From there, we can help you understand what matters now and where individualized fertility treatment may help. Schedule a consultation with PREG at one of our North Carolina or South Carolina fertility clinics today.
