
Maintaining a healthy weight during pregnancy is essential for the well-being of both mother and the baby. While weight gain is a natural part of pregnancy, excessive weight gain or weight loss can lead to complications. Understanding the right approach to weight management can help expectant mothers make informed decisions for a healthier pregnancy.
Pre-pregnancy weight considerations
For women who are overweight (BMI of 25-29.9) or obese (BMI over 30) and planning to conceive, the ideal goal is to achieve a healthy weight beforehand. Losing weight before pregnancy can reduce the risk of complications such as gestational diabetes, high blood pressure, and birth defects. Overweight women are advised to maintain their weight during pregnancy, while obese women may benefit from supervised weight loss of 7-11.5 kg, depending on individual health conditions.
On the other hand, underweight women (BMI below 18.5) should aim for gradual weight gain before conception to support fetal development. A balanced diet and regular exercise can help achieve an optimal pre-pregnancy weight, setting the stage for a smoother pregnancy journey.
Safe weight gain during pregnancy
Pregnancy is not the time for restrictive dieting or drastic weight loss. Instead, expectant mothers should focus on healthy weight gain based on their pre-pregnancy BMI:
Healthy weight (BMI 18.5-24.9): 11.5-16 kg total weight gain
Overweight (BMI 25-29.9): 7-11.5 kg weight gain
Obese (BMI 30+): Limited weight gain or even slight weight loss under medical supervision
Underweight (BMI <18.5): A higher weight gain may be necessary, as advised by a healthcare professional
Weight gain should be gradual, with a typical increase of 0.5-2 kg in the first trimester and approximately 0.5 kg per week in the second and third trimesters. Gaining weight within recommended ranges helps support fetal growth while minimising health risks.
Healthy eating for pregnancy
A nutrient-rich diet is key to maintaining a healthy weight during pregnancy. Instead of focusing on calorie restriction, expectant mothers should emphasise consuming wholesome foods that provide essential nutrients for both mother and baby.
Recommended dietary choices include:
Fruits and vegetables: Packed with vitamins, minerals, and fiber for digestion and overall health.
Whole grains: Brown rice, whole wheat bread, and oats provide sustained energy.
Lean proteins: Chicken, fish, eggs, and legumes support muscle and tissue development.
Dairy products: Low-fat milk, yogurt, and cheese provide calcium for strong bones.
Healthy fats: Nuts, seeds, and avocados support fetal brain development.
Avoiding processed foods, excess sugars, and saturated fats can help prevent excessive weight gain and manage blood sugar levels effectively.
Physical activity during pregnancy
Regular physical activity is beneficial for expectant mothers and can aid in managing weight gain. Safe exercises during pregnancy include:
Walking
Swimming
Prenatal yoga
Low-impact aerobics
Staying active can improve circulation, boost mood, and reduce pregnancy-related discomforts such as back pain and swelling. However, any exercise routine should be approved by a healthcare provider, especially for women with high-risk pregnancies.
Managing weight with medical support
For women with pre-existing conditions such as type 2 diabetes or obesity, managing weight during pregnancy requires professional guidance. A registered dietitian can help tailor meal plans based on individual needs, while doctors can monitor weight gain and metabolic health to ensure a safe pregnancy.
Successful weight control involves sustainable changes in diet and activity levels rather than extreme measures. For overweight individuals with type 2 diabetes, reducing dietary fat intake can help regulate blood glucose levels, lower the need for medication, and improve insulin sensitivity.
Long-term benefits of healthy pregnancy weight management
Weight gained during pregnancy can impact future health, increasing the risk of obesity, diabetes, and heart disease. Adopting healthy habits during pregnancy supports a smooth delivery and long-term well-being. Expectant mothers should focus on balanced nutrition and moderate activity, ensuring a healthy pregnancy while safeguarding their own and their baby’s health.