According to a new study, eating a diet rich in walnuts can create healthier spermatozoa. Walnuts are rich in polyunsaturated fatty acids (PUFAs) which keeps sperm membranes healthy as well as being a healthy replacement for saturated fats. Mice who ate walnuts showed improvement in form and movement of sperm. Although unsure if which nutrients in walnuts improve sperm quality, researchers know that walnuts reduce damage to sperm cell membranes caused by peroxidation. This study was fueled by a study at UCLA done with human males who by eating 2.5 ounces of walnuts a day improved sperm quality. The study on mice supported these results. Although promising, larger studies with a more diverse male population and a follow-up of birth outcomes are needed.
- 1New animal research suggests eating a walnut-enriched diet may improve sperm quality by reducing lipid peroxidation, a process that can damage sperm cells.
- 2As this is an animal study, there is no direct correlation to processes that occur in the human body. However, the findings support previous research suggesting that walnuts provide key nutrients that may be essential for sperm function.
- 3This study supports findings from a published randomized control trial, which showed that eating 75 grams of walnuts per day (about 2.5 ounces) improved sperm vitality, motility and morphology in men who added walnuts to their diet compared to men who did not add walnuts.
What’s fascinating is we found that eating walnuts can actually help improve sperm quality, likely by reducing peroxidative damage in sperm cells.