proportional - one of the quantities in a mathematical proportion. quantity - the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable.
The third trimester is when women should eat around 500 extra calories per day. Special Considerations. While the 300 calorie per day example above is just an example, there are some special cases in which a woman might need to adjust her daily calorie intake to fit her needs.
Second and Third Trimester. It is normal for pregnant women in their second or third trimester to be hungrier because their baby needs more fuel to develop at this stage. You will need an average of 300 extra calories a day to gain weight at a healthy pace while supplying enough energy to your growing baby. You can calculate your daily calorie need for these trimesters simply by adding an extra 200 calories a day compared to what you were eating during the first trimester.