Health and weight Expected weight gain
Gaining weight when you are pregnant is perfectly natural, it is even recommended for the health of your baby.
Use the Rosso curves to calculate your ideal weight and your expected weight gain
Your expected weight gain
Based on the ideal weight and the actual weight before pregnancy, we can then use the Rosso curves to determine your theoretical weight gain during pregnancy. The Rosso curves have the advantage of giving a much more precise indication of how the weight gain should be spread during the pregnancy (which is not the case of the BMI that only gives you the end target):
- In summary, it is worth noting that the weight at the end of the pregnancy should reach around 120% of the ideal weight before pregnancy for women whose initial weight is comprised between 70 and 105% of their ideal weight.
- If the mother-to-be was overweight before the pregnancy, she should in principle gain less weight than a mother-to-be who was normal or underweight.
Your personalised weight gain curve
Disclaimer/Source: Adapted from several serious sources and more specifically from an article from The American Journal of Clinical Nutrition: “A new chart to monitor weight gain during pregnancy” (P. Rosso, MD)