A healthy and well balanced diet is what is required to start with during pregnancy which is best for both the mother and the baby. By this you need to undergo only a few alterations in your diet during your pregnancy.
The first trimester
If it is difficult to maintain a balanced diet during the early stages of your pregnancy you should assure yourself that you are not lone and due to uneasiness some women tend to eat most of the time and gain excess weight due to this. While some find it difficult to eat food and slowly lose weight.
To avoid malnutrition and dehydration are very important aspects to be remembered during the first trimester.
Calories
During pregnancy you need to eat about 300 calories more than your usual routine and the best way is to eat well when you feel hungry and eat as many as food as you can from the foot of the pyramid.
If you feel your weight gain is slow you can consume an increased amount of fat in your diet and always eat whenever you feel like as you are not eating all for only yourself now.
Calcium
During the second trimester, you may require about 1,500 milligrams of calcium every day for your bones as well as the baby and this amounts to about more than a quart of milk.
Calcium is insufficient in most diets, so besides milk dairy products, calcium fortified juices and even calcium which is all good sources of calcium should be included.
Fiber
Consumption of fiber prevents constipation, which is a well known problem during pregnancy. Whole grains, fruits and even vegetables are rich in fiber. Metamucil and Citrucel are safe supplements which can be taken during pregnancy.
Protein
Protein intake is not going to be deficient normally for women who have a healthy diet, unless you are a strict vegetarian.
Iron
Most of the women have iron deficiency during the early stages of pregnancy. Dark green leafy vegetables and meats are rich sources of iron. Iron supplements should not be taken as they may cause internal symptoms like cramping, constipation and diarrhea.
Vitamins
Your physician will be able to guide you with your vitamins requirements in your diet. Folate is the best and if you are receiving it sufficiently you can keep off al the other vitamins. But you should consult your doctor about this.