A woman's need for calories, protein, vitamins, minerals, and water all increase during pregnancy. With the exception of iron for many women, a careful selection of food can and should provide the additional calories and nutrients required.

Milk and milk products: Dairy products provide numerous nutrients and are especially high in calcium and proteins. Calcium is essential in the formation of bones and teeth. If your intake isn't sufficient, your baby can withdraw calcium from your bones, making you more at risk of developing osteoporosis later in life.

Cereals/grains, dals and other pulses: Protein, a major nutrient in this group, is necessary for growth of new cells and replacement of old ones.

Vegetables: These provide vitamins A and C among other vitamins, minerals and fibre, which can help relieve constipation. Eating foods rich in Vitamin C like cabbage, green beans and tomatoes helps the body absorb the iron in foods.

Fruits: Oranges, grapes, melons and berries are the best sources of Vitamin C. Deep yellow fruits like papaya and mango are good sources of Vitamin A.

The nutrient needs are increased in view of the development of maternal organs such as uterus, placenta, breast tissue and to build up body reserves to be utilised at the time of delivery and subsequently during lactation. However, an increased nutrient intake has been suggested mainly in the second and third trimesters of pregnancy. Any supplement should be taken only under the direction of a gynaecologist.