Is Maltodextrin Safe for Hashimoto's Thyroiditis?
For people with Hashimoto's Thyroiditis, Maltodextrin is worth limiting or using with caution during a flare and usually fine in remission. Highly processed polysaccharide chain causing immediate blood sugar spikes.
Status for Hashimoto's
Why this rating?
Highly processed polysaccharide chain causing immediate blood sugar spikes.
People who are sensitive to this ingredient may notice gi, inflammation, pain, neuro or fatigue. Individual responses vary, so this symptom category does not replace the condition-specific rating above.
Editorial summary
This summary is editorial and is not part of the clinical review. Ratings above are unchanged.
What maltodextrin is
Maltodextrin is a white powder made by partly breaking down starch. FDA regulations describe it as a nonsweet nutritive saccharide polymer made of glucose units, with a dextrose equivalent of less than 20, prepared by partial hydrolysis of corn, potato or rice starch, and the agency treats it as generally recognized as safe. It is used to add bulk and body, to carry flavours and sweeteners, and to improve texture in powdered drinks, sports products, sauces, snacks, protein powders, infant and medical formulas, and tabletop sweetener sachets.
Why the rating is cautious
Maltodextrin barely tastes sweet, but it is made of glucose chains that the body breaks down quickly, so it behaves like a fast carbohydrate. That is the main reason for our rating. For insulin-dependent diabetes it is rated Avoid when glucose is running high and Limit otherwise, because it can raise blood glucose quickly and is easy to miss on a label that does not look sugary. For inflammatory bowel disease it is rated Limit in a flare and in remission, and for Hashimoto's, Graves', rheumatoid arthritis, multiple sclerosis and lupus it is Limit during a flare and Usually OK in remission, reflecting its place in heavily processed foods rather than a specific trigger.
Where it hides
Maltodextrin can appear in products that are marketed as low in sugar, because it does not taste sweet and does not have sugar in its name, even though it is a rapidly digested carbohydrate. Sweetener sachets frequently use it as a bulking agent alongside a high-intensity sweetener. Sports drinks and gels use it on purpose as a quick energy source. Resistant maltodextrin, also called resistant dextrin, is a different ingredient: in 2018 the FDA listed it among the carbohydrates that can be counted as dietary fiber.
Reading a label
Look for maltodextrin by name in the ingredient list and check the total carbohydrate line, not only the sugars line, on the Nutrition Facts panel. If you dose insulin, a product's total carbohydrate is the number to count. If you track gluten, maltodextrin in the United States is usually made from corn, potato or rice, but the label is the place to check the source.
In short
In short, maltodextrin is a starch-based carbohydrate that is digested quickly even though it does not taste sweet, so count it as carbohydrate, watch for it in low-sugar products, and ask your care team how it fits your plan.
How Maltodextrin is rated across conditions
The same ingredient can mean different things depending on the condition. These are the ratings for every condition that has a guide for Maltodextrin.
| Condition | During a flare | In remission |
|---|---|---|
| Inflammatory Bowel Disease (IBD) | Limit / Caution | Limit / Caution |
| Hashimoto's Thyroiditis | Limit / Caution | Usually OK |
| Graves' Disease | Limit / Caution | Usually OK |
| Rheumatoid Arthritis (RA) | Limit / Caution | Usually OK |
| Multiple Sclerosis (MS) | Limit / Caution | Usually OK |
| Lupus (SLE) | Limit / Caution | Usually OK |
| Insulin-Dependent Diabetes | Avoid | Limit / Caution |
Other conditions
Sources
Published sources
Classification based on clinical nutrition assessment; no independent published study cited.
Clinical review
Reviewed by Morvarid Nikousokhantayar, MSc Nutrition, Certified Naturopath & Nutritionist — last reviewed September 25, 2026.
This is general dietary information, not medical advice. Talk to your care team about your individual triggers.
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