It is important to avoid vitamin A during pregnancy because it may cause damage to the embryo. Foods containing large amounts of vitamin A include liver, and should be eaten on an occasional basis only. Unpasteurised cheeses, blue-veined cheeses and pâté are also not recommended because of the possible risk of transmission of infectious diseases such as Listeria.
Constipation during pregnancy can be caused by hormonal changes that cause the intestines to move less. Iron supplements can also cause constipation. To avoid constipation, eat lots of fibre-rich foods such as fruit, vegetables, wholemeal bread and cereal, prunes and prune juice. Drinking 2 to 3 litres of water each day will also help prevent constipation by keeping stools moist. Regular exercise will also help get the intestines moving. About 20 to 30 minutes' swimming or brisk walking two to three times a week is a good level of exercise to aim for.
A pharmacist will be able to provide advice about over-the-counter preparations that are safe to use during pregnancy to relieve constipation. It is not necessary to be obsessive about your weight during pregnancy. Many obstetricians have stopped weighing women other than at their first visit because the information is of little use in detecting problems with the mother or her baby.However, excess weight gain is probably best avoided since most women will want to return to the same dress size within a few months of delivery.
What foods should be avoided during pregnancy and to avoid constipation
