Organic brown rice syrup is a liquid sweetener made by breaking down the starch in cooked brown rice into simpler sugars using natural enzymes. It has a mild, butterscotch-like sweetness, a thick consistency similar to honey, and shows up in a surprising number of packaged foods, from cereal bars and candy to infant formulas and frozen desserts. It’s popular in natural and organic food products as an alternative to high-fructose corn syrup, but it comes with some important caveats worth understanding.
How It’s Made
The process starts with whole organic brown rice, which is suspended in water and heated to around 95°C (about 200°F) for 40 minutes. This gelatinizes the starch, turning the rice into a thick slurry. From there, manufacturers add a series of enzymes that do the heavy lifting. First, a liquefying enzyme breaks the long starch chains into shorter fragments over about two hours. Then saccharifying enzymes work for up to 48 hours at a steady 65°C, chopping those fragments into individual sugar molecules and short sugar chains.
The result is a syrup composed mainly of three types of sugars: maltose (a two-unit sugar), maltotriose (a three-unit sugar), and a smaller amount of glucose. This sugar profile is quite different from table sugar or honey. The syrup is then filtered, concentrated by evaporation, and bottled. Because the process relies on enzymes rather than chemical acids, it fits neatly into organic and “natural” food production.
What Makes It “Organic”
For a brown rice syrup to carry the USDA Organic seal, at least 95% of its ingredients must be organic. The rice itself must be grown without synthetic pesticides, synthetic fertilizers, or genetically engineered seeds. Production cannot involve ionizing radiation or sewage sludge. The entire supply chain, from farm to factory, must be overseen by a USDA-authorized certifying agent. Up to 5% of ingredients can be nonorganic, but only if organic versions aren’t commercially available, and those ingredients must appear on the USDA’s National List of allowed substances.
Nutritional Profile and Glycemic Index
Brown rice syrup is not a health food. It’s still a concentrated sugar, delivering roughly 75 calories per tablespoon with negligible protein, fiber, vitamins, or minerals. What sets it apart nutritionally is its sugar composition. Because it’s mostly maltose and maltotriose rather than fructose, it behaves differently in the body than sweeteners like agave nectar or high-fructose corn syrup.
Its glycemic index is listed at 25 by the U.S. Department of Veterans Affairs, which is significantly lower than table sugar at 65. That number may surprise people who’ve seen other sources cite a much higher GI for rice syrup. The discrepancy likely comes from differences in how the syrup is processed: longer enzymatic treatment produces more glucose (higher GI), while shorter treatment leaves more complex sugars intact (lower GI). The specific product you buy matters. Still, a low glycemic index doesn’t make it a free pass. It’s a calorie-dense sweetener, and consuming large amounts will raise blood sugar regardless.
Dietary Compatibility
Brown rice syrup checks several dietary boxes. It’s vegan, making it a direct substitute for honey. It’s naturally gluten-free, assuming no barley enzymes were used in processing (some older or traditional methods did use barley malt enzymes, which introduced gluten). Major brands like Lundberg now use microbial enzymes and carry gluten-free certification. It’s also low in fructose, which can be relevant for people with fructose malabsorption, though it’s not necessarily low-FODMAP in large servings since maltose can still cause digestive issues for some.
Where You’ll Find It
Organic brown rice syrup is a workhorse ingredient in the natural foods industry. Food manufacturers use it as a direct replacement for high-fructose corn syrup in candy, breakfast cereals, snack bars, and ice cream. It also turns up in less obvious places: dressings and sauces, frozen meals, meat substitutes, fruit preserves, frostings, beverages, nutritional supplements, and even pet food. If you’re reading an ingredient label on a product marketed as “organic” or “natural” and it lists brown rice syrup, that product is using it primarily as a binding agent and sweetener.
At home, people use it as a honey substitute in tea, a maple syrup alternative on pancakes, or a sticky binder in homemade granola bars. Its thick, viscous texture makes it especially useful in recipes that need ingredients to hold together.
The Arsenic Concern
Rice is uniquely efficient at absorbing arsenic from soil and water, and that arsenic concentrates when rice is processed into syrup. This is the single most important thing to know about brown rice syrup, and it applies to organic versions just as much as conventional ones. Arsenic is a naturally occurring element in soil, but it accumulates in rice paddies at higher levels than in most other crops. Being organic doesn’t reduce arsenic content because the arsenic comes from the environment, not from pesticides.
A Dartmouth College study tested 17 toddler milk formulas and found that two products listing organic brown rice syrup as a primary ingredient had arsenic levels more than 20 times higher than the other formulas tested. The soy-based formula averaged 21.4 parts per billion of inorganic arsenic (the most toxic form), and the dairy-based version averaged 8.6 ppb. For context, the EPA’s safe drinking water limit is 10 ppb, and that limit doesn’t account for the low body weight of infants, who consume more per kilogram than adults.
The same study tested 29 cereal bars and energy foods containing brown rice syrup and found elevated arsenic levels across the board. The FDA has since acknowledged rice-derived products, including rice syrup, as a meaningful source of arsenic exposure. In 2016, the agency proposed a limit of 100 micrograms per liter of inorganic arsenic specifically for infant rice cereal, but found that fewer than half of tested products met that threshold. No specific federal limit currently exists for arsenic in rice syrup itself.
For adults eating the occasional cereal bar, the exposure is modest and not cause for alarm. The concern is greatest for infants and toddlers, whose smaller body weight means any given amount of arsenic has a proportionally larger impact, and for anyone consuming rice syrup in large or daily quantities.
How It Compares to Other Sweeteners
- Versus honey: Similar thickness and calories, but brown rice syrup is vegan and lower in fructose. Honey has trace enzymes and antimicrobial properties that rice syrup lacks.
- Versus maple syrup: Maple syrup has a more complex flavor and contains small amounts of minerals like manganese and zinc. Brown rice syrup is milder and stickier, making it better for binding.
- Versus high-fructose corn syrup: Rice syrup contains virtually no fructose, which is its main selling point for manufacturers targeting health-conscious consumers. It’s also non-GMO by default since commercial GMO rice isn’t grown in the U.S.
- Versus table sugar: Brown rice syrup is less sweet than sucrose, so recipes often require more of it, which adds moisture and changes texture. Its lower glycemic index is an advantage, but the extra volume means extra calories.
Organic brown rice syrup occupies a specific niche: it’s a useful sweetener for people avoiding fructose, honey, or corn syrup, and it works well as a binder in foods that need to stick together. Its “organic” label guarantees the rice was grown to USDA standards, but it doesn’t address arsenic content. If you use it occasionally in cooking or encounter it in packaged foods, the risk is low. If it’s a staple in your diet or your child’s, it’s worth diversifying your sweetener choices.