The Role of Nutrition in Fertility Treatments: How Diet Can Impact Your Chances of Success

Medically Reviewed by Dr. Silvana Chedid on August 31, 2026

Diet does not replace fertility treatment, but the foods you eat in the months before and during a cycle can support some of the same biological factors your care team is already managing, including hormone balance, egg and sperm quality, and how your body handles the physical demands of treatment. Nutrition is one part of a much larger picture, and it works best alongside medical care, not instead of it.

At Chedid Grieco, our team factors nutrition into the broader conversation we have with every patient about their overall health, because a balanced, nutrient-rich diet is one of the more practical, everyday steps you can take while working through an assisted reproduction plan. This is not about a single food or supplement changing the outcome of your treatment. It is about giving your body a steady foundation while the clinical work does the heavier lifting.

General Nutritional Factors Linked to Reproductive Health

Research on diet and fertility is still developing, and no single food or nutrient has been shown to guarantee a pregnancy. That said, a body of research, including a 2022 committee opinion from the American Society for Reproductive Medicine on optimizing natural fertility, has identified several dietary patterns and nutrients that are more consistently associated with reproductive health than others.

Components that current research most often associates with supportive reproductive health include the following:

• Antioxidants from fruits, vegetables, and a daily multivitamin, though evidence for a fertility benefit is strongest in patients with a specific ovulatory or oxidative stress issue rather than the general population
• Folate and folic acid, found in leafy greens, legumes, and fortified grains, which reproductive medicine organizations recommend for women of reproductive age regardless of whether they are actively trying to conceive
• Long-chain omega-3 fatty acids, found in fish and some plant oils
• Whole grains and full-fat dairy in place of highly refined carbohydrates
• Plant-based protein sources, such as legumes, nuts, and seeds
• Iron, zinc, and vitamin B12, which support broader metabolic and hormonal function

If you are in a relationship and pursuing treatment together, both partners benefit from paying attention to nutritional status, since several of these same factors are associated with semen quality as well as egg quality. None of this is a substitute for a full clinical evaluation, but it is a reasonable, evidence-informed starting point for the dietary side of your preparation.

Limiting Processed Foods, Alcohol, and Excess Caffeine

Alongside what to add to your diet, research has also looked at what to limit. Diets higher in ultra-processed foods have been associated in NIH-published research on diet, lifestyle, and fertility with lower intake of key nutrients like iron and folate, which matters most for anyone already working to meet increased nutritional needs during treatment or pregnancy.

The picture on alcohol and caffeine is more nuanced than many wellness articles suggest. Large prospective cohort studies have not found a strong, consistent link between moderate alcohol or caffeine intake and ovulatory infertility, but heavier alcohol use and higher intake of caffeinated soft drinks specifically have been associated with reduced measures of fertility in some of that same research. Because the safest threshold varies by individual health history and treatment protocol, it is worth asking your care team for a specific recommendation rather than relying on a general rule you read online.

How Diet May Support Your Fertility Treatment, Not Replace It

It is worth being direct about what nutrition can and cannot do. Diet is a supportive factor that may help your overall reproductive health and general readiness for treatment. It is not a proven fix for infertility on its own, and no dietary change should be treated as a substitute for the medical evaluation, medication protocols, or procedures your physician has recommended.

Where diet appears to help is in the margins: supporting a healthy weight range, providing the micronutrients your body draws on during ovarian stimulation or sperm production, and reducing the burden of inflammation and blood sugar swings that can complicate an already demanding treatment cycle. Patients who come into treatment with steady nutritional habits often report feeling more physically prepared for the cycle ahead, even though individual outcomes always depend on the underlying diagnosis and treatment plan.

Practical Dietary Guidance During an Active Treatment Cycle

Once you are in an active cycle, whether that means monitoring appointments in Miami or the treatment itself at our clinic in Brazil, a few practical habits tend to matter more than any single superfood:

Staying consistently hydrated supports the body through hormone injections and monitoring visits, and steady protein intake throughout the day, rather than concentrated in one meal, can help support tissue recovery around egg retrieval or embryo transfer. This is not the time to start a restrictive or crash diet in pursuit of quick weight loss, since sudden calorie restriction can add physical stress at exactly the point your body is adjusting to medication. It is also worth checking with your care team before adding any new supplement during an active cycle, since some vitamins and herbal products can interact with fertility medications in ways that are not always obvious. If your treatment plan includes travel, whether for a Miami consultation or your cycle at our Brazil clinic, our fertility tourism guidance can help you plan around meals, timing, and logistics so nutrition does not become an added stressor.

Weight, Age, and Lifestyle Factors That Work Alongside Nutrition

Nutrition does not operate in isolation from the other factors that shape fertility. Research consistently associates a body mass index outside the typical healthy range, in either direction, with a higher likelihood of ovulatory difficulty, which is one reason weight management, rather than weight loss for its own sake, is often part of a broader nutrition conversation. Age remains one of the strongest individual factors affecting egg quality and quantity, and no diet can reverse that decline, though supportive nutrition can still play a role in overall readiness for treatment at any age. Smoking and heavy alcohol use are both associated with reduced fertility and are worth addressing directly with your provider. Chronic stress is a related factor many patients underestimate, and our guide to managing stress during fertility treatment covers this in more depth.

Why Individualized Nutrition Guidance Should Come From Your Care Team

General information about nutrition and fertility, including everything above, is meant to inform the conversation you have with your care team, not to replace it. Your specific diagnosis, hormone levels, medication protocol, and any underlying conditions all change what a genuinely useful dietary approach looks like for you. A patient managing polycystic ovary syndrome, for example, may benefit from a very different set of dietary priorities than a patient whose fertility challenges are unrelated to metabolic health.

An advanced hormonal and reproductive evaluation is often the most reliable way to understand which nutritional factors are actually relevant to your situation, rather than adopting a generic list of foods to eat or avoid. We would rather walk through your specific labs and history with you than have you guess at what applies.

Dr. Silvana Chedid has spent 30 years in reproductive medicine, introduced ICSI to Brazil, and has helped guide nearly 9,000 families through fertility treatment, and that experience shapes how our team weighs nutrition against every other factor in your care, not as a stand-alone fix, but as one part of a boutique, individualized treatment plan built around your diagnosis.

If you have questions about how nutrition fits into your fertility treatment plan, or you are ready to schedule a consultation, reach out through our contact form and our team will follow up with you directly.

Frequently Asked Questions About Nutrition and Fertility