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The Lowdown on Carrageenan: A Seaweed-Derived Food Additive

When you think of seaweed, sushi rolls and steaming bowls of edamame might come to mind. But did you know that a common food additive, carrageenan, is derived from seaweed and found in a variety of products, including soy milk, coffee creamer, turkey bacon, and ice cream?

What is Carrageenan?

Carrageenan is a thickener and emulsifier extracted from Irish Moss, a type of red seaweed that grows off the Atlantic coast of Europe. It’s commonly used in processed dairy and dairy alternative products, making it possible to enjoy plant-based milks, vegan ice cream, and vegan yogurt.

Is Carrageenan Safe?

The FDA has approved carrageenan as a safe food additive, but controversy surrounds its safety. Some studies have linked it to inflammation, intestinal tumors, and digestive issues, while others suggest it may have health benefits, such as strengthening immune activity and acting as an antioxidant. However, most of these studies were conducted on animals or in test tubes, using larger quantities of carrageenan than are used in food products.

Human Research Says…

Limited human research suggests a link between carrageenan and inflammatory bowel disease, and some studies suggest it may cause relapse in people with ulcerative colitis. Additionally, carrageenan has been linked to poor blood sugar control, which can lead to inflammation, weight gain, and type 2 diabetes.

Foods Containing Carrageenan

Carrageenan is commonly found in:

• Processed dairy products: cottage cheese, ice cream, coffee creamer
• Dairy alternatives: plant-based milks, vegan cheese, vegan yogurt
• Processed meats: deli meat, chicken sausage, turkey bacon

Avoiding Carrageenan

If you have digestive problems, especially inflammatory bowel disease, you may want to avoid carrageenan. However, doing so requires meticulous label-checking, as carrageenan is often used in natural and healthy food products. Look for “carrageenan-free” labels or opt for USDA Organic products, which do not contain carrageenan.

The Bottom Line

Carrageenan is a seaweed-based food additive that’s generally considered safe, but its safety is still a topic of debate. It’s found in various food products, and while it has some benefits, it may also cause digestive issues and inflammation. Until more research is conducted, it’s essential to be aware of its presence in your food and make informed choices.