Choose your carbs wisely (2024)

Carbohydrates: How carbs fit into a healthy diet

Carbohydrates aren't bad, but some may be healthier than others. See why carbs are important for your health and learn which ones to choose.

By Mayo Clinic Staff

Carbohydrates often get a bad rap, especially when it comes to weight gain. But carbohydrates, often called carbs, aren't all bad. Because of their many health benefits, carbs have a rightful place in the diet. In fact, the body needs carbs to work well.

But some carbs can be better for you than others. Understand more about carbohydrates and how to make healthy diet choices.

Understanding carbohydrates

Carbohydrates are a type of macronutrient found in many foods and beverages. Most carbs occur naturally in plant-based foods, such as grains. Food manufacturers also add carbs to processed foods in the form of starch or added sugar.

Common sources of naturally occurring carbohydrates include:

  • Fruits
  • Vegetables
  • Milk
  • Nuts
  • Grains
  • Seeds
  • Beans, peas and lentils

Types of carbohydrates

There are three main types of carbohydrates:

  • Sugar. Sugar is the simplest form of carbohydrate. It occurs naturally in some foods, including fruits, vegetables, milk and milk products. Types of sugar include fruit sugar (fructose), table sugar (sucrose) and milk sugar (lactose). Added sugars can be found in many foods, such as cookies, sugary drinks and candy.
  • Starch. Starch is a complex carbohydrate. This means it is made of many sugar units bonded together. Starch occurs naturally in vegetables, grains, and cooked dry beans and peas.
  • Fiber. Fiber also is a complex carbohydrate. It occurs naturally in fruits, vegetables, whole grains, and cooked dry beans and peas.

More carbohydrate terms: Net carbs and glycemic index

The terms "low carb" or "net carbs" often appear on product labels. But the Food and Drug Administration doesn't use these terms, so there's no standard meaning. Typically, the term "net carbs" is used to mean the amount of carbs in a product excluding fiber or excluding both fiber and sugar alcohols.

You probably have also heard talk about the glycemic index. The glycemic index classifies carbohydrate-containing foods according to their potential to raise blood sugar levels.

Weight-loss diets based on the glycemic index typically suggest limiting foods that are higher on the glycemic index. Foods with a relatively high glycemic index ranking include potatoes, white bread, and snack foods and desserts that have refined flours.

Many healthy foods are naturally lower on the glycemic index. Examples include whole grains, legumes, vegetables, fruits and low-fat dairy products.

How many carbohydrates do you need?

The Dietary Guidelines for Americans recommend that carbohydrates make up 45% to 65% of total daily calories.

So if you get 2,000 calories a day, between 900 and 1,300 calories should be from carbohydrates. That translates to between 225 and 325 grams of carbs a day.

You can find the carbohydrate content of packaged foods on the Nutrition Facts label. The label shows total carbohydrates — which can include fiber, total sugars and added sugars.

Carbohydrates and your health

Despite their bad reputation, carbohydrates are vital to your health for many reasons.

Providing energy

Carbohydrates are the body's main fuel source. During digestion, sugars and starches are broken down into simple sugars. They're then absorbed into the bloodstream, where they're known as blood sugar (blood glucose).

From there, glucose enters the body's cells with the help of insulin. Glucose is used by the body for energy. Glucose fuels your activities — whether it's going for a jog or simply breathing and thinking. Extra glucose is stored in the liver, muscles and other cells for later use. Or extra glucose is converted to fat.

Protecting against disease

Some evidence suggests that whole grains and dietary fiber from whole foods help lower your risk of heart disease and stroke. Fiber may also protect against obesity, colon and rectal cancers, and type 2 diabetes. Fiber is also essential for optimal digestive health.

Controlling weight

Evidence shows that eating plenty of fruit, vegetables and whole grains can help you control your weight. Their bulk and fiber content aids weight control by helping you feel full on fewer calories. Despite what proponents of low-carb diets claim, few studies show that a diet rich in healthy carbs leads to weight gain or obesity.

Choose your carbohydrates wisely

Carbohydrates are an essential part of a healthy diet, and they provide many important nutrients. Still, not all carbs are equally good for you.

Here's how to make healthy carbohydrates work in a balanced diet:

  • Focus on eating fiber-rich fruits and vegetables. Aim for whole fresh, frozen and canned fruits and vegetables without added sugar. Or have measured portions of fruit juices and dried fruits, which are concentrated sources of natural sugar, but have more calories. Whole fruits and vegetables have many health benefits. They add fiber, water and bulk, which help you feel fuller on fewer calories.
  • Choose whole grains. Whole grains are better sources than refined grains of fiber and other important nutrients, such as B vitamins. Refined grains go through a process that strips out parts of the grain — along with some of the nutrients and fiber.
  • Stick to low-fat dairy products. Milk, cheese, yogurt and other dairy products are good sources of calcium, protein, vitamin D, potassium, and other vitamins and minerals. Consider the low-fat versions to help limit calories and saturated fat. And watch out for dairy products that have added sugar.
  • Eat more beans, peas and lentils. Beans, peas and lentils are among the most versatile and nutritious foods. They are typically low in fat and high in folate, potassium, iron and magnesium. And they have useful fats and fiber. They are a good source of protein and can be a healthy substitute for meat, which has more saturated fat and cholesterol.
  • Limit added sugars. Added sugar probably isn't harmful in small amounts. But there's no health benefit to having any amount of added sugar, such as in cookies and pastries. The Dietary Guidelines for Americans recommend that less than 10% of calories you eat or drink every day come from added sugar. Eating or drinking too many foods with sugar can also cause you to take in more than the calories you need each day.

So choose your carbohydrates wisely. Limit foods with added sugars and refined grains, such as sugary drinks, desserts and candy. These are high in calories but low in nutrition. Instead, select fruits, vegetables and whole grains.

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March 22, 2022

  1. Colditz GA. Heathy diet in adults. http://www.uptodate.com. Accessed Feb. 24, 2022.
  2. Feldman M, et al. Digestion and absorption of dietary fat, carbohydrate, and protein. In: Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. 11th ed. Elsevier; 2021. http://www.clinicalkey.com. Accessed Feb. 24, 2022.
  3. Diabetes diet, eating, and physical activity. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/diabetes/overview/diet-eating-physical-activity. Accessed Feb. 24, 2022.
  4. Carbohydrates — Part of a healthful diabetes diet. Academy of Nutrition and Dietetics. https://www.eatright.org/health/diseases-and-conditions/diabetes/carbohydrates-part-of-a-healthful-diabetes-diet. Accessed Feb. 24, 2022.
  5. 2020-2025 Dietary Guidelines for Americans. U.S. Department of Health and Human Services and U.S. Department of Agriculture. https://www.dietaryguidelines.gov. Accessed Feb. 24, 2022.
  6. Libby P, et al., eds. Nutrition and cardiovascular and metabolic diseases. In: Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 12th ed. Elsevier; 2022. https://www.clinicalkey.com. Accessed Feb. 24, 2022.
  7. How to understand and use the Nutrition Facts label. U.S. Food and Drug Administration. https://www.fda.gov/food/new-nutrition-facts-label/how-understand-and-use-nutrition-facts-label. Accessed Feb. 24, 2022.
  8. Duyff RL. Academy of Nutrition and Dietetics Complete Food and Nutrition Guide. 5th ed. Houghton Mifflin Harcourt; 2017.

See more In-depth

See also

  1. Health foods
  2. Alcohol use
  3. Alkaline water
  4. Artificial sweeteners and other sugar substitutes
  5. Autism spectrum disorder and digestive symptoms
  6. Breastfeeding nutrition: Tips for moms
  7. Caffeine: How much is too much?
  8. Is caffeine dehydrating?
  9. Calorie calculator
  10. Can whole-grain foods lower blood pressure?
  11. Chart of high-fiber foods
  12. Cholesterol: Top foods to improve your numbers
  13. Coconut water: Is it super hydrating?
  14. Coffee and health
  15. Diet soda: How much is too much?
  16. Dietary fats
  17. Dietary fiber
  18. Prickly pear cactus
  19. Does soy really affect breast cancer risk?
  20. Don't get tricked by these 3 heart-health myths
  21. High-protein diets
  22. How to track saturated fat
  23. Is there a special diet for Crohn's disease?
  24. Juicing
  25. Monosodium glutamate (MSG)
  26. Nuts and your heart: Eating nuts for heart health
  27. Omega-3 in fish
  28. Omega-6 fatty acids
  29. Phenylalanine
  30. Portion control
  31. Sodium
  32. Taurine in energy drinks
  33. Trans fat
  34. Underweight: Add pounds healthfully
  35. Daily water requirement
  36. Yerba mate

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Choose your carbs wisely (2024)

FAQs

Choose your carbs wisely? ›

Your best carbohydrate-containing foods are nutrient-packed foods in several of the basic food groups: fruits, vegetables, grains, and milk and milk products. Choosing these foods within your calorie requirements daily may help your heart stay healthy and reduce your risk for chronic disease.

How do you choose carbohydrates wisely? ›

So choose your carbohydrates wisely. Limit foods with added sugars and refined grains, such as sugary drinks, desserts and candy. These are high in calories but low in nutrition. Instead, select fruits, vegetables and whole grains.

What is the best choice for carbohydrates? ›

But the following foods are a better source of carbs.
  • Vegetables. All of them. ...
  • Whole fruits. Apples, bananas, strawberries, etc.
  • Legumes. Lentils, kidney beans, peas, etc.
  • Nuts. Almonds, walnuts, hazelnuts, macadamia nuts, peanuts, etc.
  • Seeds. Chia seeds and pumpkin seeds.
  • Whole grains. ...
  • Tubers.

What is the 5 to 1 rule for carbs? ›

Here's how the 5:1 rule works. Simply look at the ratio of grams of carbohydrates to grams of dietary fibre. Divide the carbohydrates by the dietary fibre. You want a 5:1 ratio or less.

What are the healthiest carbs to eat everyday? ›

What are some of the best sources of healthy carbs? Romito suggests these foods: Whole grains: Farro, quinoa, whole-grain breads and pastas, bulgar wheat, and brown or wild rice. Starchy vegetables: Potatoes (preferably with the skin), green peas, corn and winter squash like butternut or spaghetti squash.

What are the 3 most important carbohydrates? ›

The most common and abundant forms are sugars, fibers, and starches. Foods high in carbohydrates are an important part of a healthy diet. Carbohydrates provide the body with glucose, which is converted to energy used to support bodily functions and physical activity.

What are the 3 most important types carbohydrates? ›

The three types are:
  • Starches (also known as complex carbohydrates)
  • Sugars.
  • Fiber.

What is the number one carb to avoid? ›

THE WORST: Refined or processed carbohydrates. These are carbohydrates like white bread, white sugar, white flour pasta, and white rice that have been stripped of their blood-sugar-buffering fiber, as well as vitamins, minerals, and antioxidants, things both your body and hair are big fans of.

What are examples of bad carbs? ›

Simple or refined carbohydrates (sometimes referred to as “bad” carbs) include sugars and refined grains that have been stripped of all bran, fiber, and nutrients, such as white bread, pizza dough, pasta, pastries, white flour, white rice, sweet desserts, and many breakfast cereals.

What foods should I avoid for carbs? ›

Simply put, when you follow a no-carb diet, you avoid all high carb foods. Specifically, try to eliminate whole and refined grains, baked goods, fruits, milk, yogurt, beans, legumes, pasta, bread, sugar-sweetened beverages, and starchy vegetables like peas and corn.

What is the 50 30 20 rule for carbs? ›

On a 50-20-30 diet, 50 percent of your calories comes from carbohydrates, 20 percent from fats and 30 percent from proteins. These percentages fit the macronutrient recommendations from the Institute of Medicine and will help you get complete nutrition from your diet.

What is Rule #1 Avoid white carbohydrates? ›

Avoid “white” starchy carbo- hydrates (or those that can be white). This means no bread, pasta, rice, potatoes, or grains. Eat the same few meals over and over again, especially for breakfast and lunch. You already do this; you're just picking new default meals.

Does fiber cancel out carbs? ›

On Nutrition Facts food labels, the grams of dietary fiber are already included in the total carbohydrate count. But because fiber is a type of carbohydrate that your body can't digest, it does not affect your blood sugar levels. You should subtract the grams of fiber from the total carbohydrate.

Are potatoes bad carbs? ›

They're also chock full of starch, which is a carbohydrate. But even though a potato is considered a complex “healthy” carb, your body digests these carbs faster than other kinds of complex carbs. These broken-down carbs flood your blood with sugar. This makes your blood sugar spike quickly.

What vegetables are high in carbs to avoid? ›

3. Starchy vegetables
  • Sweet corn: 75 grams (59 grams net)
  • Potatoes: 22 grams ( 20 grams net)
  • Sweet potatoes: 18 grams (15 grams net)
  • Peas: 25 grams (16 grams net)
  • Butternut squash: 11 grams (8 grams net)
Aug 10, 2023

Which carb is best for weight loss? ›

Experts at Penn State University recommend whole grain as a way to reduce belly fat. After putting 50 obese men and women on a lower-calorie diet for 12 weeks, the group that ate more whole grains showed a significant decrease in abdominal fat compared with those who were given processed grains.

Why is it wise to choose complex carbohydrates? ›

Complex carbs pack in more nutrients than simple carbs. They're higher in fiber and digest more slowly. This also makes them more filling, which means they're a good option for weight control. They're also ideal for people with type 2 diabetes because they help manage blood sugar spikes after meals.

What is the main rule of carbohydrates? ›

Carbohydrates, also known as saccharides or carbs, provide energy for the body. Each gram of carbohydrates provides 4 calories. The body breaks carbohydrates down into glucose, which is the primary energy source for the brain and muscles.

What are the best factors to consider when evaluating the quality of a carbohydrate? ›

The four components of carbohydrate quality that have been most extensively reviewed in the scientific literature are dietary fiber content/intake, whole grain content/intake, free sugar content/intake, and glycemic index and glycemic load [5].

What makes a carbohydrate a good carbohydrate? ›

Nutrition experts divide carbohydrates into “good” and “bad.” Good carbs, like whole grains, brown rice and legumes, don't raise blood glucose quickly. Bad carbs, like white bread, cookies and sugary sodas, cause blood glucose to rise quickly.

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