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Prader-Willi Syndrome and Diabetes

November 14th is World Diabetes Day. While diabetes is not a certain outcome of PWS, it is not uncommon for individuals with PWS to develop it over time. People with PWS may be at higher risk due to a combination of metabolic and hormonal differences that affect how their bodies use energy and manage blood sugar.

Those who are overweight have an even greater risk, but the good news is that with balanced nutrition, regular physical activity, ongoing monitoring, and early interventions, individuals can lower their chances of developing diabetes and lessen its impact if it does occur.

If you are concerned about diabetes, the most important first step is to speak with your loved one’s healthcare provider. Together, you can create a plan for prevention and wellness.

What is Diabetes?

The American Diabetes Association (ADA) defines diabetes as a chronic condition where the body’s blood glucose (blood sugar) is too high, resulting from the body’s inability to properly use or store it for energy.

There are multiple types of diabetes, with Type 1 and Type 2 as the most common.

Type 1 Diabetes

This is an autoimmune condition and is not caused by diet or lifestyle. It usually begins in childhood and occurs when the body can’t make its own insulin or produces very little. People with Type 1 diabetes must take insulin to manage their blood sugar levels.

Type 2 Diabetes

In this form, the body can still make insulin but doesn’t use it properly. Over time, this leads to higher blood sugar levels. Type 2 diabetes is the most common form of diabetes seen in individuals with PWS.

How is food broken down?

In a person without diabetes: When a person eats, the food is broken down into glucose (sugar), which enters the bloodstream. As blood sugar levels rise, the pancreas releases insulin. Insulin acts like a key, unlocking the body’s cells so glucose can move inside and be used as fuel. Once the cells absorb the glucose, blood sugar levels return to a healthy, stable range

In a person with diabetes: 
The process doesn’t work as it should. The pancreas may not make enough insulin, or the body’s cells may become resistant to it. Sometimes both happen. As a result, glucose cannot enter the cells and instead stays in the bloodstream. Over time, high levels of glucose in the blood can damage blood vessels, nerves, and organs.

Prevention strategies include: 

Regular physical activity: Encourage daily movement suited to the person’s ability level (e.g., walks, swimming, dancing, or adaptive fitness). Even short, consistent activity helps the body use insulin more effectively. 

Balanced, portion-controlled meals: Follow a structured meal plan designed for PWS. 

Consistent sleep routines: Quality sleep supports healthy hormone regulation and can improve metabolism and mood. 

Routine medical monitoring: Work closely with your healthcare provider to monitor weight, fasting glucose, and HbA1c (average blood sugar levels). Regular bloodwork helps detect early changes, so adjustments can be made before diabetes develops. 

Medication and hormone management: Review growth hormone and other medications regularly with your endocrinologist, as these can affect body composition, metabolism, and insulin sensitivity. 

What are some symptoms to look for? 

Excessive thirst 
Excessive urination 
Fatigue 
Blurred vision 
Numbness or tingling in hands and feet 

Resources:

What is Diabetes? Types, Symptoms, and Causes – Harvard Health

Diabetes Research, Education, Advocacy | ADA

Type 2 diabetes – Symptoms and causes – Mayo Clinic 

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