Editorial Note: This article is based on guidance from the Indian Council of Medical Research–National Institute of Nutrition (ICMR-NIN), the World Health Organization (WHO), the American College of Obstetricians and Gynecologists (ACOG), and the Royal College of Obstetricians and Gynaecologists (RCOG). Weight gain recommendations vary depending on pre-pregnancy BMI, medical history, and whether you are carrying one baby or multiples. Always follow your obstetrician’s advice for personalized care.
One of the most common questions during pregnancy is, “How much weight should I gain?” The answer depends on your pre-pregnancy Body Mass Index (BMI), whether you’re carrying one baby or multiples, and your overall health.
Healthy weight gain supports your baby’s growth, placenta development, increased blood volume, amniotic fluid, and maternal tissue changes. Both too little and too much weight gain can increase the risk of pregnancy complications.
This guide explains the Pregnancy Weight Gain Chart (India) using recommendations relevant to Indian women, trimester-wise weight gain, monthly charts, diet tips, and frequently asked questions.
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Quick Answer
For Indian women with a normal pre-pregnancy BMI (18.5–23 kg/m²), the ICMR-National Institute of Nutrition (NIN) recommends gaining about 10–12 kg during pregnancy. Women who are overweight (BMI 23–27.5 kg/m²) or obese (BMI >27.5 kg/m²) should generally aim for a lower total gain of 5–9 kg, while underweight women require closer monitoring and may need to gain more.
Why Healthy Weight Gain Matters
Pregnancy weight gain isn’t just about the baby’s weight.
It includes:
- Baby
- Placenta
- Amniotic fluid
- Increased blood volume
- Enlarged uterus
- Breast tissue
- Maternal fat stores
- Extra body fluids
Healthy weight gain helps reduce the risk of:
- Low birth weight
- Preterm birth
- Gestational diabetes
- High blood pressure
- Cesarean delivery
- Large-for-gestational-age babies
Pregnancy Weight Gain Chart (India)

Recommended Total Weight Gain Based on Pre-Pregnancy BMI
| Pre-Pregnancy BMI | BMI Range (Indian Adults) | Recommended Weight Gain |
|---|---|---|
| Underweight | Below 18.5 | Individualized; requires close monitoring |
| Normal Weight | 18.5–23 | 10–12 kg |
| Overweight | 23–27.5 | 5–9 kg |
| Obese | Above 27.5 | 5–9 kg |
These recommendations are based on the ICMR-NIN Dietary Guidelines for Indians 2024, which use BMI cut-offs appropriate for Indian adults.
Pregnancy Weight Gain by Trimester
Weight gain is not the same throughout pregnancy.
First Trimester (0–13 Weeks)
Typical gain:
- Around 0.5–2 kg
Many women gain very little during the first trimester due to morning sickness.
Second Trimester (14–27 Weeks)
This is when weight gain becomes more consistent.
Average gain:
- About 0.4–0.5 kg per week (varies with BMI and medical advice)
Third Trimester (28–40 Weeks)
The baby grows rapidly.
Weight continues to increase steadily until delivery.
Month-by-Month Pregnancy Weight Gain Chart (Normal BMI)
| Pregnancy Month | Expected Weight Gain* |
|---|---|
| Month 1 | Minimal |
| Month 2 | 0–1 kg |
| Month 3 | 1–2 kg |
| Month 4 | 2–3 kg |
| Month 5 | 4–5 kg |
| Month 6 | 5–7 kg |
| Month 7 | 7–8.5 kg |
| Month 8 | 8.5–10 kg |
| Month 9 | 10–12 kg |
*Approximate values for women with a normal pre-pregnancy BMI carrying a singleton pregnancy. Individual weight gain patterns vary.
How to Calculate Your BMI Before Pregnancy
Use this formula:
BMI = Weight (kg) ÷ Height (m²)
Example
- Weight = 55 kg
- Height = 1.60 m
BMI = 55 ÷ (1.60 × 1.60)
BMI = 21.5
This falls within the normal BMI range for Indian adults.
Factors That Affect Pregnancy Weight Gain
Many factors influence how much weight you gain, including:
- Pre-pregnancy BMI
- Twin or multiple pregnancy
- Morning sickness
- Physical activity
- Diet quality
- Medical conditions
- Gestational diabetes
- Thyroid disorders
- Fluid retention
- Genetics
Weight gain should always be interpreted alongside fetal growth and overall maternal health rather than as a number alone.
Healthy Pregnancy Diet for Appropriate Weight Gain
Choose nutrient-dense foods such as:
- Whole grains
- Fresh fruits
- Vegetables
- Milk and dairy products
- Eggs
- Lentils
- Beans
- Fish (low-mercury varieties)
- Lean chicken
- Nuts and seeds (age-appropriate and if no allergy)
The ICMR recommends an additional ~350 kcal/day from the second trimester for women with a normal BMI, along with increased protein intake to support pregnancy.
Foods to Limit During Pregnancy
Reduce intake of:
- Sugary drinks
- Deep-fried foods
- Ultra-processed snacks
- Excess sweets
- Alcohol (avoid completely)
- High-mercury fish
Choose home-cooked, balanced meals whenever possible.
Safe Physical Activity During Pregnancy
If approved by your healthcare provider, consider:
- Walking
- Prenatal yoga
- Swimming
- Stretching
- Pelvic floor exercises
Moderate exercise helps support healthy weight gain and overall well-being during pregnancy.


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