Source:  Study Links Diet Pills, Having Gay Children as reported by
PlanetOut.com

http://planetout.com/news/article.html?date=2004/12/06/4

A new study suggests that women who take amphetamine-based diet pills when
pregnant are more likely to have lesbian and gay children.  Expectant
mothers who have taken thyroid medication are also included, with similar
findings.  Conducted by the Minot State University, North Dakota, the study
followed more than 5,000 mothers and their offspring.  The research will be
published in the journal Personality and Individual Differences.
Researchers found that mothers of lesbian women were five times more likely
to have taken thyroid medications in the early stages of their pregnancies
than those of heterosexual women.  Additionally, they were nearly eight
times more likely to have taken amphetamine-based diet pills.  Conversely,
mothers of straight men were 70 percent more likely to have taken
anti-nausea drugs than those of gay men.  Professor Lee Ellis, one of the
researchers for the study, said that the data backs claims that sexuality is
determined in the womb through a variety of genetic and biochemical chain
reactions.  Some say "these analyses support the conclusion that female
offspring are more vulnerable to alterations in sexual orientation via
exposure to a variety of prescription drugs, and suggest that this
vulnerability is greatest during the first trimester."  Others pointed to
the movement of nutrients and chemicals from the mother to the baby in the
womb.  It is not the first study to look to claim sexual orientation is
decided in the womb, with recent investigations pointing to blink patterns,
genetics and brain patterns as deciding factors.  However, some gay
activists are keen for the nature-or-nurture debate to be dropped in favor
of a more sophisticated debate on equality.  Professor Ellis is now calling
for a larger study to take place in the near future.