
Eating foods rich in essential vitamins and antioxidants is an effective option to improve sperm strength and quality, especially for men who may be at risk of infertility. Providing the right nutrients can help increase the chances of successful conception, supporting couples in achieving their dream of a complete and happy family.
How Do Free Radicals Affect Sperm Production?
Free radicals are unstable molecules that naturally occur during various biological processes in the body. While the body has mechanisms to manage them, an excess of free radicals or an inefficient defense system can lead to oxidative stress which is a condition that damages cells, including sperm cells. Negative effects include:
Damage to Sperm DNA
Free radicals can attack and damage the DNA inside sperm cells, causing abnormalities that reduce their ability to fertilize an egg effectively. This also increases the risk of genetic defects in the embryo.
Reduced Sperm Quality
Oxidative stress caused by free radicals can lower overall sperm quality, including a reduced sperm count, slower motility, abnormal shape, and a decreased ability to penetrate the egg’s outer layer. These factors significantly lower the chance of successful fertilization.
Higher Risk of Infertility
When sperm is damaged by free radicals, male fertility declines. Couples may face low sperm count issues, making conception take longer or even preventing natural pregnancy altogether. This also increases the risk of miscarriage or pregnancy complications.
Which Antioxidants Help Improve Sperm Health?
Antioxidants help protect the body from damage caused by free radicals and reduce their harmful effects. Key antioxidants that can support sperm health include:
Vitamin C
Vitamin C is a water-soluble antioxidant that helps protect sperm cells from free radical damage and improves sperm quality. It also strengthens the sperm cell membrane, making sperm more resilient, while enhancing the absorption of nutrients beneficial for reproductive health.
Vitamin E
Vitamin E is a fat-soluble nutrient that helps prevent DNA damage in sperm and improves sperm motility. Men who regularly consume adequate Vitamin E tend to have higher-quality sperm and increased pregnancy rates with their partners.
Zinc
Zinc is an essential mineral for sperm production and helps strengthen sperm cells. It also plays a role in regulating testosterone levels and producing enzymes necessary for sperm development.
Selenium
Selenium is a mineral with antioxidant properties that protects sperm from damage and enhances motility. Men with low selenium levels often experience poor sperm movement, reducing the chances of conception.
Folic Acid
Folic acid, part of the B-vitamin group, helps produce healthy sperm and prevents chromosomal abnormalities. It also supports DNA repair and can help increase overall sperm count.
What to Eat for Low Sperm Count: Antioxidant-Rich Foods
Boosting sperm health and increasing antioxidants can be achieved by eating foods that support the reproductive system, such as:
- Leafy green vegetables – Kale, broccoli, and spinach are rich in Vitamin C, folic acid, and other antioxidants that help improve sperm quality.
- Berries – Blueberries, strawberries, and raspberries are packed with antioxidants that protect sperm from free radical damage.
- Seafood – Crab and oysters are high in zinc, which supports sperm quality and improves motility.
- Nuts and seeds – Pumpkin seeds and soybeans provide antioxidants, Vitamin E, and zinc, helping to strengthen sperm cells.
- Almonds and walnuts – High in Vitamin E, these protect sperm cells from damage and also contain omega-3 fatty acids that support reproductive health.
- Dark chocolate – Choose 70% cocoa or higher for a rich source of flavonoids that help protect cells from damage.
Eating these foods regularly, along with maintaining a consistent exercise routine, managing stress, and avoiding smoking and alcohol, can deliver the best results for improving sperm health. This helps produce strong, healthy sperm that are ready for reproduction.
For men facing infertility due to sperm-related issues, VFC Center (V Fertility Center) offers various medical solutions to increase your chances of having children — including semen analysis, fertility evaluations, and sperm retrieval procedures such as PESA, TESA, TESE, and MESA. Our team is ready to provide personalized consultations and close care at every stage, led by experienced obstetricians and gynecologists.
Article by Dr. Wanakan Singhasena
For inquiries or to make an appointment:
VFC Center – V-Fertility Center
Hotline: 082-903-2035
LINE Official: @vfccenter

OBSTETRICS AND GYNAECOLOGY-REPRODUCTIVE MEDICINE
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