Weight Gain During Pregnancy 

Your Baby gets all nutrients from you. So, to ensure the baby is getting enough, it’s your responsibility to eat enough. However, eating too much could lead to problems. Proper weight gain during pregnancy is one of the best ways to ensure that Your Baby develops fast, happy, and healthy.


First Trimester Weight Gain

During the first trimester, most moms-to-be don’t gain much weight. The amount of weight gains during this period varies between 0.5 – 2.5 kg. However, it’s even normal not to gain any weight or lose a little bit during the first trimester due to food aversions or morning sickness.


Second and Third Trimester Weight Gain

Most moms-to-be tend to gain between 4-9 kg by the end of the second trimester. Weight gain is greatest during the third trimester as this is the time that Baby really packs on lots of cute baby fat. So you need to make sure that you’re gaining enough, especially healthy food and not too much sugar. 


How much weight to gain?

The majority of the weight is due to increased blood volume, larger breasts, and water retention, plus there are the baby and the placenta. The amount of weight that you’re supposed to gain depends on your weight and is determined by your Body Mass Index (BMI).

BMI       Healthy weight gain range

1-18         12-18 kg

18-25       11-16 kg

25-30       7-11 kg

30+          5-9 kg


BMI       Healthy weight gain range for twins

18-22       17-24 kg

23-30       14-22 kg

30+         4-8 kg


How to calculate your BMI

To calculate your BMI, divide your weight in kilograms by the square of your height in meters: weight in kilograms / {height in meters x height in meters}. For example, if your weight is 50 kg and your height is 1.6 meters, you have to calculate: 50 / [1.6 * 1.6] or 50 / 2.56; the answer is 19.53. That means, if you are 50kg in weight and 160cm in height, your BMI is around 19.5, and you should gain between 11-16 kg during your pregnancy. 


Risks of eating too much

Too much weight gain can mean problems for you as well as the baby. Severely overweight women are more prone to hypertension and gestational diabetes and are more likely to have a cesarean section. Their babies are also usually bigger.

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