GLP-1 Medications & Nutrient Deficiencies

(Based on: What Nutrients Are GLP-1 Users Lacking? What Nutrients Are GLP 1)

Are You on a GLP-1 Medication? Here’s What You Should Know About Nutrient Gaps

GLP-1 medications such as semaglutide are increasingly used for managing obesity and type 2 diabetes. While these medications can be effective for weight loss and blood sugar control, emerging research shows they may also increase the risk of certain nutrient deficiencies.

Nutrients of Concern

Recent findings indicate higher risk for deficiencies in:

• Vitamin D

• Iron (low ferritin levels)

• B Vitamins (including thiamine)

• Calcium

• Zinc

• Selenium

Some studies show GLP-1 users had:

• 49% higher risk of vitamin D deficiency

• 54% higher risk of lower iron levels

• Reduced iron absorption within weeks of therapy

In rare cases, severe thiamine deficiency has been reported.

Why Does This Happen?

GLP-1 medications slow gastric emptying and often reduce appetite. While this helps with weight management, it may also reduce overall food intake and limit nutrient absorption over time.

What Should You Do?

If you are taking a GLP-1 medication:

✔ Ask your provider about periodic nutrient screening✔ Monitor iron, vitamin D, and B-vitamin levels✔ Focus on nutrient-dense foods✔ Stay hydrated

At Rosebud WIC, we can help guide you toward balanced food choices that protect both weight management and long-term health.

📞 Contact RST WIC or your primary care provider for personalized guidance.