You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is What is the normal weight gain during pregnancy? and explain in detail?
The total weight gain during the course of a singleton pregnancy for a healthy woman averages 11 kg (24 lb). This has been distributed to 1 kg in 1st trimester and 5 kg each in second and third trimester. Gestational weight gain recommendations are based on a woman's pre-pregnancy body mass index (BMI). BMI < 18.5 Underweight: - Mean rate of weight gain in the 2nd and 3rd trimester = 0.5 kg/week; Recommended range of total weight gain = 12.5 - 18 kg. BMI 18.5 - 24.9 Normal weight: - Mean rate of weight gain in the 2nd and 3rd trimester = 0.4 kg/week; Recommended range of total weight gain = 11.5 - 16 kg. BMI 25.0 - 29.9 Overweight: - Mean rate of weight gain in the 2nd and 3rd trimester = 0.3 kg; Recommended range of total weight gain = 7 - 11.5 kg. BMI >= 30 Obese: - Mean rate of weight gain in the 2nd and 3rd trimester = 0.2 kg/week; Recommended range of total weight gain = 5 - 9kg.