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Brown sugar vs white sugar is mostly a question of flavor, color and moisture, not nutrition. Brown sugar is sucrose with molasses in it, which gives it a caramel taste and a soft, damp texture. USDA data show a packed teaspoon of brown sugar has about 17 calories and a teaspoon of white sugar about 16, and both are roughly 95% or more sugar. Molasses does add small amounts of calcium, potassium and iron, but at the amounts people use, they barely register on a Daily Value scale. Here are the USDA numbers, how brown sugar is made, light vs dark brown sugar, and when each works in the kitchen.
Peptide Labs does not sell brown sugar or white sugar. This article is general nutrition information, not medical advice.
Key Takeaways
- Brown sugar is sucrose plus molasses; white sugar is nearly pure sucrose.
- Per teaspoon, USDA lists about 17 calories for packed brown sugar and 16 for white sugar.
- Brown sugar has more calcium, potassium and iron than white sugar, but a teaspoon gives well under 1% of the Daily Value for each.
- A packed cup of brown sugar weighs more than a cup of white sugar, so it holds more sugar and calories.
- Dark brown sugar contains more molasses than light brown sugar, so it tastes stronger.
- Both count as added sugars under FDA labeling and the Dietary Guidelines.
Brown sugar vs white sugar: the USDA comparison
The table uses USDA FoodData Central SR Legacy entries for brown sugar (FDC 168833) and granulated white sugar (FDC 169655). Percent Daily Value for sugar uses the FDA Daily Value for added sugars, 50 grams; minerals use the FDA Daily Values.
| Per serving (USDA) | Brown sugar | White sugar |
|---|---|---|
| Teaspoon weight | 4.6 g packed (3 g unpacked) | 4.2 g |
| Calories per teaspoon | 17 packed | 16 |
| Sugars per teaspoon | 4.5 g (9% DV) | 4.2 g (8% DV) |
| Cup weight | 220 g packed (145 g unpacked) | 200 g |
| Calories per cup | 836 packed | 774 |
| Calories per 100 g | 380 | 387 |
| Sucrose per 100 g | 94.6 g | 99.8 g |
| Calcium per packed cup | 183 mg (14% DV) | 2 mg (0% DV) |
| Potassium per packed cup | 293 mg (6% DV) | 4 mg (0% DV) |
| Iron per packed cup | 1.6 mg (9% DV) | 0.1 mg (1% DV) |
| Calcium per packed teaspoon | 3.8 mg (0.3% DV) | 0.04 mg (0% DV) |
The mineral rows look impressive per cup, but nobody eats a cup of brown sugar in one sitting, and that cup also carries more than 200 grams of sugar, about four times the added-sugars Daily Value. At the teaspoon level, USDA data put brown sugar’s calcium at under 4 milligrams. Gram for gram, brown sugar has slightly fewer calories than white sugar because it holds a little water and a bit less sucrose, but packing changes how much fits in a spoon, which matters more in practice.
What is brown sugar?
Most brown sugar sold in US supermarkets is refined white sugar with cane molasses added back, which coats the crystals and gives the familiar color and stickiness. Some brown sugars are made by keeping part of the natural molasses during refining instead. Either way, USDA composition data show brown sugar is still mostly sucrose, with small amounts of glucose and fructose from the molasses.
Molasses itself is far more mineral-rich than either sugar. USDA lists a tablespoon of molasses (FDC 168820) at about 58 calories and 14.9 grams of sugar, with roughly 12% of the Daily Value for magnesium, 6% for potassium, 5% for iron and 3% for calcium. Brown sugar contains only a small share of molasses, which is why its mineral content stays low. White sugar, made from sugarcane or sugar beets, has the molasses removed during refining, leaving almost pure sucrose.
Light vs dark brown sugar
Light vs dark brown sugar differ in how much molasses they contain. Dark brown sugar has more, so it is darker, slightly moister and stronger in flavor, and it suits gingerbread, barbecue sauce and baked beans. Light brown sugar is milder and is the usual pick for chocolate chip cookies. Nutritionally the difference is tiny; a bit more molasses means a bit more of the same minerals, still at trace levels per teaspoon. Turbinado is a coarse, golden cane sugar; the Dietary Guidelines list turbinado sugar as one more name for added sugar.
Brown sugar calories and blood sugar
Brown sugar calories are essentially the same as white sugar calories, about 4 calories per gram for both. Both are made mainly of sucrose, which digestion splits into glucose and fructose, so they raise blood glucose in a similar way. Brown sugar is not a lower-sugar option for people who manage blood sugar; anyone in that situation should work out carbohydrate choices with a clinician or registered dietitian. Our https://peptidelabs.live/refined-carbs/ guide explains how refined sugars fit into the bigger carbohydrate picture.
Is brown sugar healthier?
Not in any meaningful way. Is brown sugar healthier than white sugar because it looks less processed? Color does not change the sugar content, and the extra minerals are too small to matter at normal use. FDA counts both as added sugars, with a Daily Value of 50 grams for added sugars on the Nutrition Facts label. The Dietary Guidelines for Americans, 2025-2030, state that no amount of added sugars is recommended as part of a healthy diet, and the 2020-2025 edition set a limit of less than 10 percent of calories from added sugars starting at age 2, with none before age 2. Both guidelines apply equally to brown and white sugar.
The practical takeaway is to pick the sugar that suits the recipe and use the amount the recipe needs, rather than choosing brown sugar for health reasons. If you want to compare sugar with a liquid sweetener, our https://peptidelabs.live/honey-vs-sugar/ guide covers honey, which also counts as added sugar.
Baking with brown sugar and white sugar
In the kitchen, the molasses in brown sugar holds moisture and adds slight acidity and caramel flavor, which is why cookies made with more brown sugar tend to be chewier and softer, while cookies made with more white sugar spread and crisp more. White sugar gives a cleaner sweetness and is standard for meringues and light cakes. Recipes that call for packed brown sugar mean pressing it into the cup, which is why a packed cup weighs about 220 grams in USDA data versus about 145 grams loosely spooned.
- Hard brown sugar has simply lost moisture; storing it airtight helps keep it soft.
- A common home substitute for brown sugar is white sugar mixed with a little molasses, adjusted to taste and color.
- Swapping white for brown sugar changes texture and flavor more than nutrition, so follow a tested recipe.
- Powdered sugar is finely ground sugar; USDA lists it at 389 calories per 100 grams, in line with granulated.
Lower-sugar alternatives
If your goal is less added sugar overall, swapping one sugar for another will not get you there. Some people use non-nutritive or low-calorie sweeteners instead; our guides to https://peptidelabs.live/stevia/, https://peptidelabs.live/allulose/, https://peptidelabs.live/monk-fruit/ and https://peptidelabs.live/sugar-alcohols/ explain how each one works and what to watch for, and https://peptidelabs.live/how-to-stop-sugar-cravings/ looks at habits. Note that the 2025-2030 Dietary Guidelines do not recommend non-nutritive sweeteners as part of a healthy diet either.
Frequently Asked Questions
Which is healthier, brown sugar vs white sugar?
Neither has a meaningful health advantage. Brown sugar has trace minerals from molasses, but at normal amounts they add well under 1% of the Daily Value. Both count as added sugars.
What is brown sugar made of?
Brown sugar is sucrose with molasses. In the US it is usually refined white sugar with cane molasses added back, which gives its color, moisture and caramel flavor.
How many brown sugar calories are in a teaspoon?
USDA lists about 17 calories in a packed teaspoon of brown sugar and about 16 in a teaspoon of white sugar.
What is the difference between light vs dark brown sugar?
Dark brown sugar contains more molasses, so it is darker, moister and stronger in flavor. Nutrition differences are tiny.
Is brown sugar better for blood sugar?
No. Both are mostly sucrose and raise blood glucose in a similar way. Anyone managing blood sugar should plan sugars with a clinician.
Can I swap white sugar for brown sugar in baking?
Usually, but texture changes: brown sugar makes baked goods moister and chewier, white sugar crisper. Follow a tested recipe for the result you want.
Questions about a label? Contact us or read our Buyer’s Guide. Food comes first; follow the label and ask a healthcare provider before starting a supplement, especially if you take medicines, are pregnant or have a food allergy. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Last reviewed October 2026.
Related guides: Honey vs Sugar: USDA Calories, Nutrition and What the Label Rules Say, Monk Fruit Sweetener: Is It Safe, What’s in It and Monk Fruit vs Stevia, Low Sugar Fruits: USDA Sugar per Serving, From Lowest to Highest, Molasses: Blackstrap Molasses, USDA Nutrition and Added Sugar Facts.