Short answer: Zinc and selenium are two minerals with a documented role in fertility. According to EU-approved health claims, zinc contributes to normal fertility and reproduction, and selenium contributes to normal spermatogenesis (sperm formation). Both are included in a good prenatal – but most people get the basics through a varied diet.
Zinc
Zinc is needed for normal cell division, DNA synthesis, and a large number of enzymatic processes. For fertility, it is particularly interesting that zinc, according to EU-approved health claims, contributes to normal fertility and reproduction and to maintaining normal testosterone levels in the blood. Sources include meat, seafood, legumes, nuts, and seeds.
Selenium
Selenium is part of the body's antioxidant defense and is needed for the normal function of the thyroid gland. For fertility, selenium, according to EU-approved health claims, contributes to normal spermatogenesis – that is, the formation of sperm. Good sources include fish, eggs, Brazil nuts, and whole grains.
Diet and supplements
A varied diet is often enough to cover the need for zinc and selenium. A prenatal multivitamin combines them with other important nutrients in preparation for pregnancy, which can be a convenient supplement. Do not exceed the recommended dose, especially for selenium, which has a relatively narrow range.
Frequently asked questions
Are zinc and selenium good for both women and men?
Yes. Zinc's fertility claim is general, and selenium's applies to sperm formation – so the minerals are relevant for both.
Do I need supplements?
If you get zinc and selenium through your diet, your needs are often covered; a prenatal can be a supplement before pregnancy.
This article is general information and does not constitute medical advice. Consult a doctor or midwife about dosage.
Sources
- EU Register of authorized health claims (EFSA): zinc contributes to normal fertility and reproduction; selenium contributes to normal spermatogenesis. EU Register of nutrition and health claims.