During Pregnancy Energy requirement will increase by 300-500 kilo kcals (Normal – 1900-2100 kCal) .Because the growth and physical activities of Fetus and growth in maternal body size. <br />Protein is essential for growth and maintenance of tissues of mother and foetus. Durning pregnancy, protein requirement will increase from 1 to1.5-1.75gm/kg/day. <br />See the more details on: <br />http://www.dietkundali.com/what-to-eat-during-pregnancy.html