Pregnancy Weight Gain Tracker
Track gestational weight gain against IOM 2009 targets by pre-pregnancy BMI. Supports singleton and twin pregnancies. Used in Indian antenatal care per FOGSI.
Run a full FOGSI-compliant ANC clinic
EasyClinic auto-plots GWG, BP trends, DIPSI GDM screening, anaemia recheck, TT vaccination, and ultrasound schedule — every patient on time, every visit documented.
Also Known As
IOM 2009 weight gain targets (singleton)
- Underweight (BMI <18.5): total 12.5-18 kg, T2/T3 weekly 0.44-0.58 kg
- Normal (18.5-24.9): total 11.5-16 kg, weekly 0.35-0.50 kg
- Overweight (25-29.9): total 7-11.5 kg, weekly 0.23-0.33 kg
- Obese (≥30): total 5-9 kg, weekly 0.17-0.27 kg
- First trimester: 0.5-2 kg total (less for overweight/obese)
Twin pregnancy targets (IOM 2009 provisional)
- Normal weight: 17-24.5 kg
- Overweight: 14-22.7 kg
- Obese: 11.3-19 kg
- No formal underweight twin guideline — extrapolate.
Why does this matter — clinical outcomes
- Under-gain: fetal growth restriction (FGR), preterm birth, low birth weight, impaired neurodevelopment
- Over-gain: gestational diabetes (GDM), pre-eclampsia, macrosomia, C-section, post-partum weight retention, childhood obesity
- Asian-Indian women: higher GDM risk at lower BMI — be stricter with over-gain interpretation
Indian context — Asian-Indian BMI cutoffs
Per Misra et al. (JAPI 2009) and ICMR: Asian-Indians have higher visceral fat at lower BMI. Overweight begins at BMI ≥23, obese ≥25. Many obstetricians use these adjusted thresholds rather than the WHO/IOM cutoffs of 25/30 — be aware when counselling.
Frequently Asked Questions
▸What if pre-pregnancy weight is unknown?
Use the weight recorded at the first ANC visit if before 13 weeks. Beyond that, estimate based on patient recall and validated proxies (mid-arm circumference can guide). Document the assumption.
▸Should we follow IOM or Asian-Indian cutoffs?
FOGSI accepts IOM 2009 as the international standard, but many Indian academic centres apply Asian-Indian cutoffs (≥23 overweight). Use clinical judgement — at BMI 23-25, lean toward overweight gain targets.
▸When to refer for nutritional counselling?
Any under- or over-gainer crossing the IOM band by >1 kg, plus all twin pregnancies, GDM, pre-eclampsia, hyperemesis, vegetarian/vegan diet, or BMI <18.5 or ≥30 at booking.
▸Is weight gain different for vegetarians?
Total weight gain target is the same, but iron, B12, calcium, omega-3 intake needs particular attention. ICMR-FOGSI recommends iron 60-100 mg/day from second trimester, calcium 1000 mg/day, B12 supplementation in pure vegans.
▸What about minimum weight gain in obese pregnancy?
IOM allows 5-9 kg in obese women. Weight loss in pregnancy is NOT recommended — it can cause ketonuria and adverse neurodevelopment. Stable weight is acceptable if fetal growth is normal on serial USG.
References
- Institute of Medicine (IOM). Weight Gain During Pregnancy: Reexamining the Guidelines. National Academies Press, 2009
- FOGSI Good Clinical Practice Recommendations: Antenatal Care 2019
- ACOG Committee Opinion No. 548: Weight Gain During Pregnancy 2013 (reaffirmed 2020)
- Misra A et al. Asian-Indian BMI cutoffs. JAPI 2009 — overweight ≥23 kg/m², obese ≥25 kg/m²
- WHO. Recommendations on Antenatal Care for a Positive Pregnancy Experience 2016
Auto-track every antenatal visit
EasyClinic plots GWG, BP, fundal height, and lab trends across all ANC visits, flags under- and over-gainers, and pushes WhatsApp reminders for the next ultrasound.
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