Insulin Therapy & Weight Gain

Author: Chantelle van der Merwe

Registered Dietitian (SA). PGDip Diabetes Management (UK).  Crafting diabetes nutrition plans that are both science-driven and practically designed.

Insulin is essential in managing elevated blood glucose levels, and it is a powerful treatment Type-1 diabetes and Type-2 diabetes to help control blood sugar. However, insulin therapy comes with side effects, and weight gain is one of the most commonly expressed concerns from individuals who use insulin. 

As a registered dietitian, I want to assure you that gaining weight while on insulin does not have to be inevitable. By taking a few steps, you can maintain a healthy weight while using insulin.

First, focus on consuming nutrient-dense foods with balanced macronutrients. Eating a variety of fruits, vegetables, whole grains, and lean protein sources can help keep you satisfied and nourished while managing blood sugar levels. Additionally, reducing portion sizes and avoiding calorie-dense foods can make a difference in managing weight.

Physical activity is also a crucial factor in managing weight while on insulin. Regular exercise helps improve insulin sensitivity and glucose uptake by muscles, which helps in blood sugar management. Aim to engage in moderate-intensity physical activity such as brisk walking, cycling, or swimming for at least 30 minutes a day.

Lastly, it's essential to work closely with your healthcare team to adjust your insulin doses and regimen as needed to manage your blood sugar levels effectively. Remember, weight management is not a one-size-fits-all approach, and working with a registered dietitian or diabetes educator can help tailor a plan to your unique needs.
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By making simple changes in your diet, engaging in physical activity, and working with your healthcare team, you can manage your weight while on insulin therapy. Don't let the fear of weight gain deter you from the life-saving benefits of insulin therapy.