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.
Determine the amount of calories you should eat by using the number of calories you used to eat to maintain your weight prior to your pregnancy and then add an extra 100 calories to support your pregnancy. For most women, 2,300 to 2,500 calories a day is a good range to aim for during the first trimester.