Grains, starchy vegetables, beans, fruits, and sugary processed foods are all high in carbohydrates. Current dietary guidelines recommend that 45% to 65% of your daily calories come from carbs, so these foods aren’t something to avoid. The key is knowing which ones give you the most nutritional value alongside those carbs.
Grains, Pasta, and Rice
Grains are the most carbohydrate-dense food group most people eat daily. Just one-third of a cup of cooked rice, pasta, quinoa, barley, or couscous contains about 15 grams of carbohydrates. That means a typical plate of pasta with a full cup of noodles delivers roughly 45 grams of carbs before you add sauce. Oatmeal, grits, and other hot cereals land at 15 grams per half cup cooked. Granola is particularly concentrated: a quarter cup (barely a handful) packs 15 grams.
Bread products add up quickly too. Half an English muffin, half a hamburger bun, one small tortilla, or a single four-inch pancake each contain about 15 grams. A full-sized bagel can easily reach 60 grams or more.
Starchy Vegetables
Not all vegetables are low-carb. Potatoes, sweet potatoes, corn, peas, winter squash, cassava, and plantains all fall into the starchy category. A quarter of a large baked potato contains around 15 grams of carbs, so a whole large potato can reach 60 grams. Half a cup of mashed potatoes hits 15 grams. Sweet potatoes and yams are similar: about 15 grams per half cup.
Corn and green peas deliver 15 grams per half cup, which surprises people who think of them as simple vegetables. Winter squash like butternut and acorn are less dense, with a full cup needed to reach the same 15 grams. Cassava and plantain, staples in many cuisines worldwide, are among the most carb-heavy vegetables, hitting 15 grams in just a third of a cup.
Beans, Lentils, and Legumes
Beans and lentils are high in carbohydrates, but they come with a major benefit: fiber. A cup of cooked lentils contains about 15.5 grams of fiber, and a cup of black beans provides around 15 grams. That fiber slows digestion, keeps blood sugar steadier, and helps you feel full longer.
Half a cup of cooked black beans, chickpeas, kidney beans, lentils, or pinto beans contains roughly 15 grams of carbs. Baked beans are slightly more concentrated (and often have added sugar), reaching 15 grams in just a third of a cup. Because so much of the carbohydrate in legumes is fiber, the amount your body actually absorbs as sugar is lower than an equivalent serving of white rice or bread.
Fruits and Dried Fruits
Fruit is naturally high in carbohydrates, mostly from sugars like fructose. A small apple, a medium orange, or an extra-small banana each contain about 15 grams. Seventeen small grapes hit the same mark. Berries are less carb-dense: you can eat three-quarters of a cup of blueberries or a cup and a quarter of whole strawberries for 15 grams.
Dried fruit is where carbs concentrate dramatically. Just two tablespoons of raisins, dried cranberries, or dried cherries contain 15 grams of carbohydrates. A small box of raisins or a handful of dates can easily deliver 30 to 40 grams. The drying process removes water but leaves all the sugar behind, making these one of the most carb-dense whole foods you can eat.
Fruit juice is similarly concentrated. Half a cup of unsweetened juice contains 15 grams of carbs, and a standard glass is closer to a full cup, doubling that to 30 grams. Unlike whole fruit, juice lacks fiber, so it doesn’t fill you up the same way despite carrying the same calories and sugar.
Sugary Drinks and Processed Foods
Soda and fruit juice both contain roughly 20 to 26 grams of sugar per cup. The difference is that juice provides vitamins, minerals, potassium, and B vitamins, while soda provides essentially nothing beyond calories. But both are low in fiber, which means neither fills you up the way eating an actual piece of fruit would. The same number of calories from a fiber-rich whole food satisfies hunger far more effectively.
Candy, cookies, cakes, white bread, sugary cereals, and most packaged snack foods are high in carbohydrates. Sugar-coated cereal reaches 15 grams of carbs in just half a cup. These foods tend to be made from refined flour and added sugars, both of which your body breaks down rapidly.
Why the Type of Carb Matters
Your body handles different carbohydrates in very different ways. Simple carbs, like those in white bread, candy, and soda, break down quickly. Blood sugar spikes fast and then drops fast, which can leave you hungry again soon. Complex carbs, like those in whole grains, beans, and starchy vegetables, take longer to digest. Blood sugar stays more stable, and you feel full longer.
The glycemic index (GI) is one way to measure this. White bread scores 70 or higher, meaning it raises blood sugar rapidly. White and sweet potatoes fall in the moderate range (56 to 69). Foods with more fiber and less processing generally score lower. A bowl of steel-cut oats, for instance, behaves very differently in your body than a bowl of sugary cereal, even if the total carb count looks similar on the label.
Quick Comparison by Serving Size
To put these foods side by side, here’s how much of each gives you 15 grams of carbohydrates:
- Rice or pasta (cooked): 1/3 cup
- Oatmeal (cooked): 1/2 cup
- Granola: 1/4 cup
- Baked potato: 1/4 of a large potato
- Corn or green peas: 1/2 cup
- Black beans or lentils (cooked): 1/2 cup
- Banana: 1 extra-small (4 inches)
- Apple: 1 small
- Grapes: 17 small
- Strawberries: 1 1/4 cups
- Raisins: 2 tablespoons
- Fruit juice: 1/2 cup
- Bread: 1 small tortilla or 1/2 English muffin
These portions are smaller than what most people serve themselves, which is worth keeping in mind. A typical restaurant plate of pasta might contain four or five times the amount listed here, putting you at 60 to 75 grams of carbs from the noodles alone.