Women should avoid eating too much vegetable oil and potato chips during pregnancy as such a diet may result in an increased risk of pregnancy complications and poor development of the babies, warns a study.
Foods such as potato chips and vegetable oil contain omega 6 fats, particularly linoleic acid, and the research suggests that overconsumption of this nutrient can promote inflammation and may be associated with an increased risk of heart disease.
"It is important for pregnant women to consider their diet, and our research is yet another example that potentially consuming too much of a certain type of nutrient can have a negative impact on the growing baby," said study lead author Deanne Skelly, Professor at Griffith University in Australia.
The finding, published in The Journal of Physiology, found that eating a diet with three times the recommended daily intake of linoleic acid might be harmful in pregnancy.
For the study, the researchers picked rats for the experiment and they found three changes in rat mothers who ate a high linoleic acid diet: their liver had altered concentrations of inflammatory proteins, their circulating concentrations of a protein that can cause contraction of the uterus during pregnancy were increased, and a hormone that can regulate growth and development was decreased.