Understanding Insulin Resistance in Children

27 of October 2026

Insulin resistance occurs when cells in the muscles, fat, and liver don’t respond properly to insulin and can’t absorb glucose from the blood normally. As a result, the pancreas produces more insulin to help glucose enter the cells.

This condition can occur in both adults and children and is a risk factor for developing type 2 diabetes, notes Dr. Marcela Tavera Hernández, pediatric endocrinology specialist at ABC Medical Center.

For children, parents should watch for certain warning signs.

One is the appearance of dark patches on the neck, armpits, groin, or areas where joints bend; these patches often appear as darkened pigmentation and can indicate insulin resistance; they’re also linked to increased body fat.

Another sign to watch for is an increase in waist circumference. It’s very important for children to maintain a healthy weight to help prevent this and other related complications.

Beyond noticing these signs, it’s important to follow up regularly with the pediatrician to catch insulin resistance early.

It’s also recommended to help prevent children from becoming overweight or obese, which can be supported through the following steps:

  • Follow a healthy, balanced diet. A child’s meals should be nutritious and visually appealing. Try to include colorful foods on your child’s plate by adding fruits and vegetables and make mealtime fun by cutting them into shapes they enjoy.

It’s important to include protein and carbohydrates, ideally complex ones with fiber, which help slow absorption and better support weight management.

Keep in mind that foods high in sugar can cause rapid spikes in blood glucose and insulin levels, which can increase fat storage and contribute to greater insulin resistance.

  • Physical activity. It’s important for your child to be physically active four to five days a week; joining a sports club or taking classes isn’t required, although it’s a great option, exercise can also happen at home through activities like running, jumping rope, or riding a bike.

To help manage insulin resistance, as well as overweight or obesity, combine cardiovascular exercise with aerobic activity and strength training.

  • Limit sedentary behavior. Beyond daily physical activity, it’s also important to reduce sedentary time. This means limiting how much time your child spends in front of screens, whether a phone or TV, ideally to no more than one hour per day.

Dr. Tavera notes that by following these daily habits, staying alert to the signs of possible insulin resistance, and keeping up with regular pediatric checkups, it’s possible to maintain optimal health or, if needed, ensure timely and appropriate care.

At ABC Medical Center’s Pediatrics Center, we can provide you with specialized care. Contact us!

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