¿Los bancos de esperma en Dinamarca están rechazando donantes por su coeficiente intelectual?

FILE - In this Tuesday, May 15, 2018, photo, scientist Fabrice De Bond picks up a vial containing frozen donor sperm samples in a lab at Melbourne IVF in Melbourne, Australia.

A viral claim stating Denmark mandates sperm donors to have a minimum IQ of 85 is incorrect, though one sperm bank in the country, Donor Network, does enforce such an IQ criterion.

A post on X alleging that Denmark introduced a minimum IQ limit of 85 for sperm donors has caused confusion, debate, and humor online, but it remains misleading.

In fact, Denmark does not impose any legal IQ standards for sperm donors; however, potential donors undergo a risk assessment interview and medical history evaluation to identify possible genetic risks.

Renowned for its permissive sperm donation regulations, Denmark hosts over a dozen active sperm banks despite the absence of an official public registry.

The two most prominent internationally known banks are the European Sperm Bank and Cryos International, the latter being described as the «world’s largest sperm and egg bank».

Cryos International requires donors to be aged between 18 and 45, maintain good physical and mental health, pass legal and medical evaluations, and reside in Denmark during donation. Under broader Danish legislation, a single donor may contribute to no more than 12 families.

In 2011, Cryos introduced an additional criterion: they stopped accepting red-haired donors because, according to the founder, the bank already had sufficient stocks.

The European Sperm Bank follows similar age guidelines and mandates donors to undergo a «thorough screening process» checking for serious hereditary illnesses and sexually transmitted diseases.

Although not all Danish sperm banks or the country itself impose IQ requirements, one bank—Donor Network, based in Aarhus—does have such a rule.

The Cube, Euronews’ fact-checking division, consulted Donor Network, where the CEO confirmed an IQ cutoff of 85 and that individuals with criminal records are disqualified from donation.

«To our knowledge, we are the only bank worldwide with these standards,» Donor Network’s CEO, Jakub Knudsen, told The Cube.

This confusion and meme proliferation originated from a November article by the Danish broadcaster DR, which focused on Donor Network.

In late November, a widely shared post featured a repurposed excerpt from the article, leading to misconceptions that Donor Network’s policies applied nationwide across Denmark.

The controversy continues

While social media teems with jokes about Donor Network’s standards, the subject involves significant ethical discussions.

DR reports that medical ethicists argue screening for certain hereditary conditions reduces risks, citing an example between 2007 and 2018 when a Danish sperm donor with a cancer-related pathogenic gene mutation fathered 52 children.

However, Daniela Cutas, associate professor of medical ethics at Lund University, explains that assessing donors based on IQ and criminal history is more complex because it presupposes that higher IQ and absence of criminality have genetic determinants.

There is broad agreement that although parental IQ can influence a child’s intelligence, environmental influences significantly shape cognitive development.

Nonetheless, according to Knudsen, scientific studies indicate that «IQ strongly predicts not only academic achievement and income but also mortality risk, ADHD susceptibility, etc., and possesses heritability estimates of 50-80%.»

«We feel uncomfortable endorsing such individuals as donors since we would not advise them to our own patients,» he added.

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