Food Aversions of Pregnant Women

It is just normal for pregnant women to be queasy or worse after eating certain foods. Meat is the most common aversion, according to studies. Dr. Fessler explains that meat and other animal proteins, including eggs and seafood, are more likely to carry food-borne illnesses. So, evolution-wise, women may be predisposed to avoid them.
For many women, it's not only the taste but also the smell of a food that causes the aversion. In fact, there is some evidence that pregnant women have a heightened sense of smell due to hormonal changes, and this impacts which foods they crave and avoid.