Updated September 2026 6 Named Ingredients — Berberine, Bitter Melon & more 60-Day Guarantee
Post-Meal Support

Cinnamon Bark

A common kitchen spice studied for its role in supporting glucose metabolism after meals.

What Is Cinnamon Bark?

Cinnamon Bark is derived from the inner bark of Cinnamomum trees, a common kitchen spice with a long history in traditional medicine.

Its Role In The GL-Defend Formula

It supports GL-Defend's post-meal layer, working alongside Bitter Melon to support how the body processes carbohydrates after eating.

What The Research Says

Studies have examined cinnamon's relationship to post-meal glucose response and insulin sensitivity.

Worth knowing: As a common food spice, it has one of the more accessible safety profiles among the ingredients in this formula.

This describes general research on Cinnamon Bark itself, not the finished GL-Defend product, which hasn't been the subject of its own clinical trial. See the full ingredients list or the formula overview for more.

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