Food cravings and aversions during pregnancy: relationships with @entity390 and XXXX .

@entity1 @entity391 @entity390
Food cravings and food aversions are common during pregnancy. A mechanism that may explain these changes in food preference is taste aversion learning. Accordingly, this study examined the temporal association between the first occurrences of @entity390 , @entity391 , food cravings and food aversions during pregnancy. Ninety-nine @entity1 completed a questionnaire that asked about the occurrence, timing of first onset, duration, strength and targets of these symptoms. @entity390 and @entity391 were reported by 80% and 56% of the @entity1 , food cravings and aversions by 61% and 54% respectively. Although more @entity1 experienced both food cravings and aversions than either symptom alone, cravings and aversions were statistically unrelated. There was a significant positive correlation between week of onset of @entity390 and of aversions. In 60% of @entity1 reporting both @entity390 and food aversions, the first occurrence of each happened in the same week of pregnancy. No such association was found for cravings. These retrospective accounts provide good support for taste aversion learning as a mechanism for the development of some but not all food aversions during pregnancy. Prospective data are needed to confirm these temporal relationships and to assist understanding of the emergence of food cravings.
