Why Am I Gaining Weight While Breastfeeding?

Many new mothers often wonder why they are gaining weight while breastfeeding. It’s a common concern that can be attributed to several factors that may affect your body during the postpartum period.

Influence of Prolactin Levels

One significant factor contributing to weight gain while breastfeeding is the influence of prolactin levels. Prolactin is the hormone responsible for milk production, and elevated levels of this hormone can lead to increased appetite and food intake in some individuals.

Postpartum Thyroiditis and Weight Gain

Another potential reason for weight gain during breastfeeding is postpartum thyroiditis. This condition, which involves an underactive thyroid after giving birth, can lower your metabolic rate and reduce the number of calories your body burns, potentially leading to weight gain.

Changes in Hormones

After childbirth, your body undergoes significant hormonal changes. Fluctuations in estrogen and progesterone levels, along with the production of prolactin, can impact your metabolism and appetite, contributing to weight gain in some breastfeeding mothers.

Stress and Emotional Eating

Stress and emotional eating are common factors that can play a role in weight gain while breastfeeding. The demands of caring for a newborn, coupled with hormonal changes and sleep deprivation, may lead some individuals to turn to food for comfort, resulting in weight gain.

Diet and Nutritional Choices

Your dietary habits and nutritional choices can also influence weight changes during breastfeeding. Consuming high-calorie, low-nutrient foods or excessive snacks can contribute to weight gain, while maintaining a balanced diet rich in fruits, vegetables, and lean proteins can support overall health and weight management.

Fluid Retention

During the postpartum period, your body may retain excess fluids, leading to temporary weight fluctuations. This fluid retention, commonly referred to as edema, typically resolves on its own but can contribute to the perception of weight gain.

Physical Activity Levels

Your level of physical activity can impact your weight during breastfeeding. Engaging in regular exercise can help burn calories, build muscle mass, and support overall weight management, while a sedentary lifestyle may contribute to weight gain.

Metabolic Rate Variations

Individual variations in metabolic rate can also influence weight changes during breastfeeding. Some people may experience a temporary slowdown in metabolism postpartum, making it easier to gain weight, while others may maintain a higher metabolic rate despite breastfeeding.

Sleep Patterns and Weight

Sleep patterns play a crucial role in weight management. Sleep deprivation, common among new parents, can disrupt hunger hormones, increase cravings for high-calorie foods, and impact metabolism, potentially leading to weight gain during breastfeeding.

Why Am I Gaining Weight While Breastfeeding?

Body Composition Changes

Changes in body composition, including shifts in muscle mass and fat distribution, can affect weight during breastfeeding. It’s essential to focus on overall health and wellness rather than solely on the number on the scale, as body composition changes are a natural part of the postpartum period.

Consulting with Healthcare Professionals

If you have concerns about weight gain while breastfeeding, it’s crucial to consult with healthcare professionals, such as your doctor or a lactation consultant. They can provide personalized guidance, support, and recommendations to help you manage your weight effectively while breastfeeding.

Photo of author

Nancy Sherman

Nancy Sherman has more than a decade of experience in education and is passionate about helping schools, teachers, and students succeed. She began her career as a Teaching Fellow in NY where she worked with educators to develop their instructional practice. Since then she held diverse roles in the field including Educational Researcher, Academic Director for a non-profit foundation, Curriculum Expert and Coach, while also serving on boards of directors for multiple organizations. She is trained in Project-Based Learning, Capstone Design (PBL), Competency-Based Evaluation (CBE) and Social Emotional Learning Development (SELD).