Maltodextrin vs Erythorbic Acid: which is worse?

What is Maltodextrin?

Maltodextrin is a polysaccharide derived by partial hydrolysis of starch — most commonly corn starch in the US, but also wheat, potato, or rice starch. It is a white powder with a mild, slightly sweet taste and is highly soluble. Despite being classified as a carbohydrate, maltodextrin has a high glycemic index (GI of 85–105), often higher than table sugar.

What is Erythorbic Acid?

Erythorbic acid is a stereoisomer of ascorbic acid (vitamin C) produced by fermentation of sucrose. While it has similar antioxidant properties to vitamin C, it has very little vitamin C activity (approximately 5%). It is primarily used in meat curing to accelerate the conversion of nitrite to nitric oxide, thereby speeding up the development of the characteristic pink color in cured meats.

Documented risks

Maltodextrin: Maltodextrin's very high glycemic index (GI 85–105) means it causes rapid blood glucose spikes, potentially problematic for people with diabetes or insulin resistance. A 2012 study in PLoS ONE (Bhatt et al.) found that maltodextrin suppressed beneficial gut bacteria (like Lactobacillus) and increased Escherichia coli biofilm formation associated with Crohn's disease. A 2022 study in Nutrients noted maltodextrin's potential to disrupt gut microbiome composition at typical dietary intakes. Regulatory agencies have not restricted its use, but nutrition researchers increasingly flag it as a low-quality carbohydrate.

Erythorbic Acid: Erythorbic acid is generally recognized as safe. It is not carcinogenic, mutagenic, or teratogenic. At very high doses in animal studies, no toxicity was observed. It is metabolized similarly to ascorbic acid. When used alongside nitrites in cured meats, it serves the beneficial function of reducing nitrosamine formation, potentially making cured meats somewhat safer. No significant adverse effects have been documented at food use levels.