Maltodextrin in Moderation
Now that we know a little about maltodextrin (MAL), let’s get into the details. I think there are two issues behind the concern about maltodextrin. The first is that MAL increases the glycemic index (GI). The GI of MAL is nearly as high as glucose, coming in at 95. That’s why it’s found in some products geared toward exercise—it becomes available quickly for energy. Energy gels for long-distance athletes contain MAL as their source of sugar. On the other hand, the resistant maltodextrin (RMAL) comes in at a paltry 5, which means it won’t impact blood sugar at all.
The second issue may be the source of the maltodextrins. The starches to make RMAL and MAL generally come from potatoes, wheat, corn, rice, and cassava. That presents issues for people who are allergic to wheat and corn. The primary source for MAL in the U.S. is corn, while wheat is the primary source in Europe; obviously, wheat is a problem for those who are allergic to wheat. Corn also gets a bad rap because almost all corn grown in the U.S. is GMO. There’s no evidence GMO foods are harmful, but many people want to stay away from bioengineered foods.
Is MAL safe to use in our food supply? Yes. Is RMAL also safe, and beneficial in our food? Yes. But it all comes down to this: how much are you going to consume? If it’s used as a stabilizer in complementary foods, manufacturers have most likely used RMAL; it wouldn’t impact blood sugar in a negative way and also gives you the benefit of fiber. But if it is MAL and you consume too much of it, it could have a negative impact on your health over time. And that’s the real story behind maltodextrin.
What are you prepared to do today?
Dr. Chet
Reference: National Institutes of Sciences, Engineering, and Medicine. 2005. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. Washington, DC: The National Academies Press.