Brown rice syrup is not meaningfully healthier than other sweeteners. It delivers 316 calories per 100 grams, almost entirely from simple sugars, with virtually no fiber, protein, vitamins, or minerals. Despite its “whole grain” origins and natural-sounding name, the finished product is nutritionally similar to other refined sweeteners, with a few specific tradeoffs worth understanding.
What Brown Rice Syrup Actually Is
Brown rice syrup starts as cooked brown rice. Enzymes (typically the same type used in beer brewing) are added to break down the rice’s starch into simpler sugars. The mixture is then filtered and reduced into a thick, amber-colored syrup. By the time this process is complete, the beneficial parts of brown rice, its fiber, B vitamins, and minerals, have been stripped away or diluted to negligible levels.
The final product contains roughly 79 grams of carbohydrates per 100 grams, with 29 grams listed as sugars. The remaining carbohydrates are longer chains of glucose molecules (mainly maltose and maltotriose) that your body breaks down into glucose almost immediately after eating. Fat, protein, calcium, iron, and potassium are all present in trace amounts too small to matter nutritionally.
How It Compares to Sugar and Honey
Brown rice syrup is about half as sweet as regular sugar. That means you need more of it to achieve the same level of sweetness, which can offset any caloric advantage. At 316 calories per 100 grams, it’s slightly lower than honey (around 304 calories) and table sugar (387 calories) by weight, but the difference shrinks when you account for how much more syrup you’ll use.
The sugar composition is where things get interesting. Brown rice syrup is made up of maltose, maltotriose, and glucose. It contains no fructose, which distinguishes it from table sugar (50% fructose) and high-fructose corn syrup (42-55% fructose). Some people choose brown rice syrup specifically for this reason, since excessive fructose consumption has been linked to fatty liver disease and metabolic issues. If you’re actively trying to reduce fructose in your diet, brown rice syrup does accomplish that.
The Glycemic Index Question
Brown rice syrup has a reported glycemic index of 25, which is surprisingly low compared to table sugar at 65. This number, however, deserves some skepticism. The syrup is composed almost entirely of glucose and glucose chains, which typically produce a high glycemic response. Some older sources cite the GI as high as 98. The variation likely depends on the specific product’s sugar profile, which changes based on how the rice is processed and which enzymes are used.
In practical terms, brown rice syrup will raise your blood sugar. Whether it raises it faster or slower than table sugar may depend on the brand and batch. If blood sugar management is a priority for you, treating brown rice syrup as a high-GI sweetener is the safer assumption.
The Arsenic Concern
Rice absorbs arsenic from soil and water more readily than most grains, and brown rice contains higher concentrations than white rice because arsenic accumulates in the outer bran layer. Brown rice syrup, being a concentrated rice product, carries this issue forward. A 2012 Dartmouth study found that some organic brown rice syrup products contained arsenic levels well above what’s considered safe for regular consumption, and the concern hasn’t gone away.
This is particularly relevant for parents. Some organic baby formulas and toddler snack bars use brown rice syrup as a sweetener. The FDA has set a limit of 100 parts per billion for inorganic arsenic in infant rice cereal, but no specific limit exists for brown rice syrup itself. For adults who use the syrup occasionally, the exposure is likely minimal. For anyone consuming it daily or giving it to young children, the arsenic content is worth taking seriously.
Using It in Cooking and Baking
Brown rice syrup works well as a binding agent in granola bars, energy bites, and crispy rice treats. Its thick, sticky consistency makes it a natural fit for recipes that need to hold together. It has a mild, slightly nutty flavor that won’t overpower other ingredients.
As a sugar substitute in baking, the conversion isn’t straightforward. You’ll generally use about 1 cup of brown rice syrup for every 3/4 cup of granulated sugar, but since you’re swapping a dry ingredient for a liquid one, you’ll also need to reduce other liquids in the recipe. The syrup tends to make baked goods crispier than expected, sometimes unpleasantly so. Combining it with another liquid sweetener like maple syrup can help balance the texture.
The Bottom Line on “Natural” Sweeteners
Brown rice syrup occupies a familiar space in the sweetener world: a product that sounds healthier than it is because it comes from a whole food. The processing required to turn brown rice into syrup removes the very nutrients that make brown rice worth eating. What remains is concentrated sugar with a different molecular structure than table sugar but a similar impact on your body.
Its one genuine advantage is the absence of fructose, which matters for people managing specific metabolic conditions. For everyone else, brown rice syrup is functionally just another added sugar. The 2020-2025 Dietary Guidelines recommend keeping added sugars below 10% of daily calories regardless of the source, and brown rice syrup counts toward that limit the same as any other sweetener. If you enjoy it in recipes or prefer it for its flavor and texture, that’s a perfectly fine reason to use it. Choosing it because you think it’s a health food, though, isn’t supported by what’s actually in the bottle.