Glucono Delta-Lactone (GDL)
CautionLeavening Agent
Glucono Delta-Lactone (GDL) is a plant-derived food additive used as a leavening agent and acidulant. It is generally considered vegan, but manufacturing processes may vary.
What is Glucono Delta-Lactone (GDL)?
Glucono Delta-Lactone (GDL) is a crystalline powder derived from glucose through bacterial fermentation. It is commonly used in the food industry as a leavening agent, acidulant, or sequestrant. GDL is often found in products that require slow acid release, such as tofu, where it helps to coagulate soy proteins. While the fermentation process typically uses plant-based materials, some manufacturers might employ non-vegan substrates, making it important for those adhering strictly to a vegan diet to verify the source.
Also known as:
Unsure about an ingredient? Scan it instantly.
Try SpoonfulDiet Compatibility
Glucono (also known as GDL, gluconolactone or e575) is a bacterial ferment derived from plants. However, some manufacturers may use non vegan ingredients to feed the bacteria so if the label is unclear, we recommend calling the manufacturer.
Learn more →This ingredient is generally considered compatible with a Alphagal diet.
Learn more →This ingredient is generally considered compatible with a Dairy Free diet.
Learn more →This ingredient is generally considered compatible with a Gluten Free diet.
Learn more →This ingredient is generally considered compatible with a Fodmap diet.
Learn more →This ingredient is generally considered compatible with a Vegetarian diet.
Learn more →Compatibility ratings are general guidelines and may vary by individual. Always consult a healthcare professional for personalized dietary advice.
Why People Avoid Glucono Delta-Lactone (GDL)
People may avoid Glucono Delta-Lactone (GDL) if they follow a strict vegan diet and are concerned about the potential use of non-vegan substrates in its production. Although GDL itself is derived from plants, the bacterial fermentation process might involve animal-derived nutrients, depending on the manufacturer. Therefore, individuals may choose to contact manufacturers for confirmation of vegan compliance.
This information is for educational purposes only and should not be considered medical advice. Individual reactions can vary. Consult a healthcare professional if you have concerns about specific ingredients.
Spoonful flags ingredients that don't match your diet.
Get the AppFoods That Commonly Contain Glucono Delta-Lactone (GDL)
Browse products that match your diet.
Explore ProductsFrequently Asked Questions
Your Personal Ingredient Scanner
Spoonful helps thousands of people with dietary restrictions shop safely. Scan barcodes, read labels, and find safe alternatives — all in one app.

Take the Guesswork Out of Grocery Shopping
Join thousands who use Spoonful to find foods that match their dietary needs.