When it comes to optimising fertility, what you put on your plate can make a significant difference.
Long-chain omega-3 fatty acids, primarily found in seafood, are well-known for their positive effects on markers of fertility.
However, many worry about the impact of certain reproductive toxins from seafood such as organochlorides, dioxins, and mercury.
Balancing these factors is key to making seafood a valuable part of a fertility-supportive diet.
Here, we dive into the research on seafood consumption and its impact on time-to-pregnancy (TTP), sexual activity, and conception outcomes from a study conducted in 2018 on 501 couples.
The Study at a Glance
A recent prospective study investigated the association between seafood intake and time to pregnancy (TTP) among 501 male and female couples actively trying to conceive.
These couples were followed for up to one year or until pregnancy was detected.
Both seafood intake and sexual intercourse frequency were tracked through daily journals, offering unique insights into the relationship between diet, lifestyle, and fertility.
Key Findings on Seafood & Fertility Benefits
1. Seafood Intake and Improved Conception Rates
Couples consuming at least 8 servings of seafood per menstrual cycle (about 2 servings per week with a monthly menstrual cycle) showed a remarkable 61% improvement in the chance of getting pregnant compared to those consuming less seafood.
By 6 months, an estimated 81% of these seafood-eating couples were pregnant, increasing to 92% by 12 months.
For couples consuming fewer than 8 servings per cycle, these rates dropped to 64% and 79%, respectively.
2. The Sweet Spot for Seafood Servings
The benefits of seafood consumption plateaued at around 14-16 servings per cycle, indicating that more isn’t always better. This highlights the importance of finding the right balance without overloading on seafood.
3. Boosted Sexual Activity
Interestingly, couples with higher seafood consumption also experienced a 22% increase in sexual intercourse frequency.
This could partially explain the improved fertility outcomes, though other factors like overall health-promoting behaviours may also play a role.
Practical Tips for Adding Seafood to Your Fertility Diet
- Focus on Omega-3 Rich Species: Prioritise oily fish such as salmon, sardines, ocean trout and anchovies for their high omega-3 content.
2. Avoid High Mercury Fish: Steer clear of species like shark, or flake swordfish, king mackerel, and tilefish, catfish, which may pose risks to reproductive health.
3. Diversify Your Protein Sources: If seafood isn’t your favourite, consider omega-3 supplements derived from fish or algae to support fertility. Book an Express Prenatal Supplement Consult for a personalised recommendation.
4. Aim for 2+ Servings Weekly: As per current recommendations, consuming at least two servings of fish or seafood per week is a great starting point.
The Bottom Line: Seafood Is Good For Fertility
Incorporating more seafood, particularly omega-3 rich options, is an evidence-based strategy to support both male and female fertility.
Whether you’re trying to conceive or simply looking to optimise your reproductive health, adding seafood to your plate could make a meaningful difference
Just be mindful of mercury levels and balance seafood with a variety of other nutritious foods.
Want support with including the right types of seafood in your fertility diet? Book in with one of our expert fertility dietitians for guidance and a personalised plan to optimise your fertility journey!
