Skip to content

The Truth About Sugar: How Much Is Too Much & How To Spot It On A Label

Natalie Butler, RDN, LD
Updated on September 16, 2019
Natalie Butler, RDN, LD
Registered Dietitian Nutritionist
By Natalie Butler, RDN, LD
Registered Dietitian Nutritionist
Natalie Butler, RDN, L.D. is a registered dietitian nutritionist. Since 2007, she has advocated for personalized functional nutrition and nutrigenomics-based lifestyle changes through her private practice Nutrition By Natalie.
Image by Arx0nt / Getty
September 16, 2019

Now that we are out of the low-fat craze (more avocado, please!), attention has turned to sugar. The sweet stuff has been blamed for everything from the obesity epidemic to Alzheimer's disease1. And it's not all unwarranted. But wait, isn't this the same stuff that makes fruit taste so good? How can something in fruit be so bad for us? Well, it turns out, as with most things, moderation is key. Some sugar is OK, and some types of sugar are better than others.

Here, we answer all your questions about sugar, clearing up confusion about natural versus added sugar, how much is OK to eat, and how to spot it on a label.

Why do we need sugar?

First, a quick primer on what sugar is and why we need it. Sugar provides quick and easy energy in the diet, fueling daily activity and exercise. Three main macronutrients exist in food—protein, carbohydrates, and fat. Sugar is a carbohydrate and is naturally present in whole foods, but it is also added to many processed foods, like bread, pastries, ice cream, yogurt, soda, juice, condiments, and more.

Digestive enzymes present in the saliva and released into the small intestine help to break down carbohydrates (whether natural or added) into their simple sugars—glucose, galactose, and fructose. These simple sugars travel to the liver, and eventually, a certain amount of glucose is transported back into the bloodstream. The pancreas is then signaled to produce and release insulin, the hormone that is responsible for transporting glucose to cells for energy.

So, what's the harm in eating too much sugar? 

Since carbohydrates are the fuel for activity, a sedentary lifestyle combined with high sugar intake (especially from sweetened beverages) that often leads to elevated blood sugar levels has been shown to promote:

Added sugar is often present even in foods you'd least expect, which can lead to overconsumption. The average American consumes about 17 teaspoons of added sugar7 or over 270 calories per day. Next time you bake a batch of cookies, think about this: 1 cup of sugar equals 773 calories! You could eat 12 cups of grapes for the same calories (with substantially more nutrients and water content)!

What is the deal with natural versus added sugar? 

"Natural sugar" is sugar found in unprocessed, whole foods like fruit, dairy, and even whole grains. Some also consider honey, coconut sugar, and maple syrup natural sugars, though they do not contain the rich nutrients that whole foods contain. For this article, "natural sugar" refers only to whole food sources. "Added sugar" refers to when any form of sugar (including "natural" forms like honey, maple syrup, fruit concentrate, etc.) is added to a product during manufacturing and processing. Added sugar helps products to caramelize, preserves and extends shelf life, enables fermentation, and balances acidity in foods. The many uses of sugar explain why sugar is so prevalent in the food supply.

Regardless of the type of sugar that is consumed, eventually it is broken down into the same simple sugars—glucose, fructose, or galactose, with some amount of glucose returning to the bloodstream and eliciting the pancreas to produce insulin. This might lead some to believe that there is no difference between a gram of sugar from a piece of candy and a gram of sugar from a berry. However, don't be fooled. Natural sugar is regarded as the healthier form of sugar because it is wrapped in a whole food package with a nutrient-rich matrix that provides more than just sugar when consumed (antioxidants, phytochemicals, fiber, water, vitamins, and minerals, to name a few), slows down the absorption of the sugar so there is less demand on the pancreas for insulin, and provides satiety, helping to curb calorie intake later.

In the U.S., new label laws8 require added sugars to be listed on the nutrition facts panel to help you keep your sugar intake in check. You'll notice some food products have already adopted the new label voluntarily, but all manufacturers must comply by January 1, 20219. Keep reading to find out how else to spot sugar on food labels.

How much sugar is OK?

Many public health agencies such as the American Heart Association, the CDC10, the U.S. Department of Health and Human Services, and others recommend no more than 36 grams of added sugar for men per day and no more than 24 grams for women and children over 2 years of age. One teaspoon of sugar equals 4 grams, so you can easily do the math to see how your favorite food product compares to the recommendations.

The pace of weight loss or weight gain differs from individual to individual. Gender, age, activity level, hormone function, genetics, and more all play a role. That said, overconsuming carbohydrates in the form of added sugar is one of the easiest ways to gain weight for most people, especially if your exercise and daily activity do not match your carbohydrate intake. Reducing your added sugar consumption can help minimize your risk of obesity, diabetes, and cardiovascular disease, all of which are lifestyle-related leading causes of death in the U.S. 

How do you reduce your sugar intake?

Looking to lower your sugar intake? Try one of these two strategies:


Gradual: Slowly cut back on sweetened foods.

You may find gradually reducing your sugar consumption is more practical and sustainable. Try sweetening foods yourself. This usually results in less sugar consumed than the presweetened versions available at grocery stores.

Snack on fruit when you want something sweet. Swap sugar-sweetened beverages for water, unsweetened tea, sparkling water, or black coffee.

Substitute calorie-containing added sugars for non-artificial sweeteners like erythritol and stevia until you can reduce all sweet foods and sweeteners (even the low-calorie and no-calorie ones)


Cold turkey: Eliminate all added sugars.

For this method, aim to eliminate all added sugars for seven to 10 days (or longer) to reset your palate and reduce your daily cravings for sweetness. Depend on naturally sweet fruits to help you through any cravings.

Sneaky names for sugar.

Serious about limiting your sugar intake? Sugar takes many forms and can sneak into your favorite foods, even healthy meals like salad, if you aren't vigilant. You can more easily spot sugar on an ingredient list if you look for words that include "syrup," "cane," "fructose," or "molasses." Also, keep an eye out for words ending in "-ose" or "‑ol."

Familiarize yourself with the list below to know exactly what to exclude:

  1. Agave Nectar
  2. Barbados Sugar
  3. Barley Malt
  4. Beet Sugar
  5. Brown Sugar
  6. Cane Crystals, Cane Juice Crystals, Cane Juice
  7. Caramel
  8. Carob Syrup or Sugar
  9. Coconut Nectar/Sugar
  10. Concentrated Fruit Juice
  11. Confectioner's Sugar
  12. Corn Syrup, Solids
  13. Corn Sweetener
  14. Crystalline Fructose
  15. Dextrin
  16. Diastatic Malt, Diatase
  17. Evaporated Cane Juice
  18. Florida Crystals
  19. Fruit Concentrate
  20. Glucose Solids
  21. Golden Sugar/Syrup
  22. Granulated Sugar
  23. Grape Sugar
  24. Grape Juice Concentrate
  25. High-Fructose Corn Syrup (HFCS)
  26. Honey
  27. Icing/Invert Sugar
  28. Lactose (added)
  29. Malt Syrup
  30. Maple Syrup
  31. Molasses
  32. Muscovado
  33. Nectresse
  34. Palm Sugar
  35. Refiner's Syrup
  36. Rice Syrup/Malt
  37. Sorghum Syrup
  38. Sugar/Raw Sugar
  39. Table Sugar
  40. Treacle
  41. Turbinado Sugar
  42. "-ol" sugars: erythritol, ethyl maltol, mannitol, sorbitol
  43. "-ose" sugars: dextrose, D-mannose, fructose, galactose, glucose, maltose, sucrose

While there is no need to completely ditch all forms of sugar, cutting back is probably a good idea. Try to focus on natural sugar from whole food sources to satisfy your sweet tooth without going overboard.

Natalie Butler, RDN, LD author page.
Natalie Butler, RDN, LD
Registered Dietitian Nutritionist

Natalie is a registered dietitian nutritionist with a passion to help others live their best life through food, fitness, safer beauty and a healthy lifestyle. She has expertise with a variety of diets and diseases and believes that there is no one-size-fits-all approach for health. Natalie consults for various organizations, like Apple, Inc.,, Head Health, Inc., and others, providing medical review, recipe and video creation, program development and delivery, seminars, and other services. She has also advocated for personalized functional nutrition and nutrigenomics-based lifestyle changes through her private practice Nutrition By Natalie since 2007. Natalie graduated from Stephen F. Austin State University with a Bachelor of Science in Food, Nutrition and Dietetics, and went on to pursue her graduate dietetic internship to become an RDN through Marywood University in Pennsylvania.

Natalie loves spending time with her husband and three children in the kitchen, garden and in nature. She is a foodie at heart and loves most cuisines, but especially spicy Indian and Thai.