Maternal consumption of coffee during pregnancy and stillbirth and infant death in first year of life: prospective study

I am not an expert but my reading in this area does suggest that
women may find that their taste for coffee/tea or other drinks may be
reduced during pregnancy (particularly early pregnancy) because women
become much more aware of (and averse towards) bitter flavours such as the
alkaloids in both tea and coffee.

It has also been suggested that a sensitivity to alkaloids or bitter
substances may also be an evolutionary advantage associated with morning
sickness during pregnancy.

Have the authors considered the possibility that those who shun
coffee during pregnancy might also avoid other bitter substances which
might explain the observed effect?

Competing interests:  
None declared