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Calorie Needs and PregnancyMore Calculators: Ideal Calorie Intake | Macro Nutrient Ratios | Ideal Body Weight | Estimate Weight Loss | Body Fat Calculator | BMI | Waist to Hip Ratio | Calories Burned | Target Heart Rate | Gain Weight Calculator | Calories in Food Imperial or Metric? Try the conversion tools. Please Note!The best method for determining appropriate caloric intake when pregnant is to track the health of the baby and expected weight gain - something that is done with the assistance of your doctor and/or obgyn. The suggestions or calculations on this page are a guide only - you should always consult with a physician or nutritionist in matters affecting the health of your baby. The goal here is to ensure appropriate weight gain during pregnancy. How Many Calories?The mean weight gain during the 9 months of pregnancy is 26 pounds (12 kilograms). The total energy cost of pregnancy has been estimated ay 77,000 Calories [2]. Over 9 months this averages out to 285 Calories per day. UK recommendations call for an extra increase of 200 Calories per day - in the 3rd trimester only. However - this does not account for underweight women, or those who continue their physical activity during pregnancy. Changes in Energy RequirementsResearch shows that energy needs are different for each trimester; An increase of 5%, 10% and 25% of pre-pregnancy Basal Metabolic Rate is the agreed figure [3]. Given these findings it is best to increase calorie intake at each trimester. Based on the estimate of 285 Calories per day overall - this would equate to:
The calculator above will take into account your pre-pregnancy calorie needs (based on age, height, and activity levels) and then add on the extra calories required for growing a healthy baby. Fat GainIt is important to note that fat gain during pregnancy is important as it provides a buffer of energy stores that will be used during lactation after the birth. PLEASE use these as a guide. There is no way to accurately make individual recommendations. References
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