How to Read a Nutrition Label: Spotting Hidden Sugar and What "Sugar-Free" Really Means

6 August 2026
MIT
How to Read a Nutrition Label: Spotting Hidden Sugar and What "Sugar-Free" Really Means

Reading a nutrition label is the fastest health skill you can learn: thirty seconds at the shelf tells you how much added sugar is in a product, how many carbohydrates will actually reach your bloodstream, and whether the words "sugar-free" on the front of the pack mean what you think they mean. The label is not fine print. It is the only place a manufacturer is legally required to tell you the numeric truth about your food. The problem is that most of us don't read it — and when we do, we start in the wrong place.


In a Saudi study published in the Journal of Multidisciplinary Healthcare in 2021 covering 722 adults, only 19% said they always read the Nutrition Facts label and 44% sometimes. More striking: when asked what the marketing phrases actually mean, only 12% could correctly explain "sugar-free," and just 4% could explain "low sodium." That gap is where food marketing lives: big words on the front, small numbers on the back, and a wide space in between.


This guide closes that space. We'll walk the label line by line in the right order, decode the names sugar hides behind, translate front-of-pack claims into their actual regulatory definitions, and finish with what has specifically changed on Saudi labels over the past two years.


🔍 Why almost everyone starts in the wrong place


Most people flip the package over and hunt for one line: sugars. In that same Saudi study, 46% of regular label readers said they check calories, while only 31% look at serving size and only 21% pay any attention to claims.


That order is backwards. Serving size is the multiplier applied to every other number on the panel. If you don't read it first, every figure you read afterwards may be off by two or three times. The U.S. Food and Drug Administration (FDA) states plainly that the serving size on a label is not a recommendation of how much you should eat — it is simply the amount people typically consume, used as the basis for calculating everything else.


A practical example: a small bag that looks like a single portion says 120 calories and 6 grams of sugar. Look one line down and you find "Servings per container: 2.5." You did not eat 120 calories — you ate 300. And you did not have 6 grams of sugar, you had 15.


Six steps to read any label in half a minute


1) Serving size and servings per container — always first


Read both lines together. Then mentally multiply every subsequent number by what you will actually eat, not by the theoretical serving. This is exactly why the FDA introduced dual-column labeling on packages larger than a single serving that a person might reasonably finish in one sitting: one column per serving, one for the whole package.


2) Calories — for context, not for panic


Calories on the label are calculated against a reference diet of 2,000 calories per day. That is a benchmark for comparing products, not your personal allowance. Use it to compare two similar options on the shelf, not to judge a single product in isolation from the rest of your day.


3) Total Carbohydrate — not the "Sugars" line alone


This is the single most important point for anyone tracking blood sugar. The American Diabetes Association (ADA) stresses that the number that matters is Total Carbohydrate, because it includes sugar, starch, and fiber together. A product labeled "0 g sugar" may still contain 30 grams of starch — and starch breaks down into glucose in your blood exactly as sugar does. Judging a product by the "Sugars" line alone is the most common label-reading mistake there is.


Beneath Total Carbohydrate you'll find Dietary Fiber. The ADA recommends 25–38 grams daily for healthy adults, and defines "high fiber" as 5 grams or more per serving and "good source of fiber" as 2.5 grams or more. Fiber helps twice over: it blunts the rise in blood sugar and it feeds your beneficial gut bacteria.


4) Added Sugars — the line that changed everything


Since the Nutrition Facts panel was updated, there is a separate indented line beneath Sugars reading "Includes Xg Added Sugars." The distinction is fundamental:


  • Total Sugars: all sugar in the product, including what occurs naturally in milk and fruit.
  • Added Sugars: sugar added during processing or packaging — including sucrose, dextrose, honey, syrups, and sugars from concentrated fruit or vegetable juices.


Note that last point carefully: "sweetened with concentrated fruit juice" is not an exemption from added sugar — the FDA explicitly classifies it as added sugar. The Daily Value for added sugars is 50 grams on a 2,000-calorie basis, and the Dietary Guidelines for Americans recommend limiting calories from added sugars to less than 10% of total daily calories.


The World Health Organization is stricter still: a strong recommendation to keep "free sugars" below 10% of daily energy, and a conditional recommendation to reduce them below 5% — roughly 25 grams, or 6 teaspoons, for an adult. The American Heart Association (AHA) sets a daily added-sugar ceiling of 100 calories (about 6 teaspoons) for women and 150 calories (about 9 teaspoons) for men, and recommends keeping added sugars under 6% of calories overall.


Put those numbers side by side and one sweetened drink can spend your entire daily ceiling before you have eaten anything.


5) The 5% and 20% rule for % Daily Value


The "% Daily Value" column is the quickest tool on the label and the most ignored. The rule the FDA publishes is simple enough to memorize in a second:


  • 5% DV or less per serving = low in that nutrient.
  • 20% DV or more per serving = high in that nutrient.


Then apply the right direction for each nutrient. Nutrients you want low: saturated fat (reference value 20 g), sodium (2,300 mg), added sugars (50 g). Nutrients you want high: dietary fiber (28 g), vitamin D, calcium, iron, potassium.


6) The ingredient list — and why its order is never random


Ingredients are listed in descending order by weight: the first is present in the largest amount, the last in the smallest. That single rule exposes half of all marketing sleight of hand.


If sugar — under any name — appears in the first three ingredients, you are holding a confection no matter what the front says. And if you find three different sweeteners scattered through the middle of the list, that is deliberate splitting: dividing the sugar across several names keeps each name low in the ranking, while their combined weight might actually make sugar the number-one ingredient.


🍬 The names sugar wears when it isn't called "sugar"


Sugar appears on ingredient lists under dozens of names. You don't need to memorize them all — you only need the four patterns:


  • Anything ending in "-ose": sucrose, glucose, fructose, dextrose, maltose, lactose, galactose.
  • Anything with the word "syrup": corn syrup, high-fructose corn syrup, malt syrup, rice syrup, maple syrup, agave syrup.
  • Anything with "juice concentrate" or "nectar": evaporated cane juice, fruit juice concentrate, agave nectar.
  • The "natural" names that look innocent: honey, molasses, coconut sugar, brown sugar, date sugar, date syrup, crystalline fructose, dextrin, maltodextrin.


An honest point worth making: your body handles most of these very similarly. Coconut sugar, agave syrup, and date sugar remain added sugars under both the FDA and WHO definitions, and being unrefined does not exempt them from the count.


By contrast, sugar alcohols (erythritol, xylitol, maltitol, sorbitol) and non-nutritive sweeteners (stevia, monk fruit, sucralose) are a genuinely different category and appear elsewhere on the label. We covered the differences between them in detail in our guide to sugar substitutes, and how to calculate carbohydrates after subtracting fiber and sugar alcohols in our article on net carbs. For how fat quality fits into the same label, see Healthy Fats and Cholesterol.


What front-of-pack claims legally mean


The big words on the front of a package are not free-form slogans — they carry precise numeric definitions, and those definitions often differ from what shoppers assume. The most important ones:


  • Sugar Free: less than 0.5 grams of sugar per serving — natural and added combined. It does not mean carbohydrate-free, and it does not mean calorie-free.
  • No Added Sugar: no sugar or sugar-containing ingredient was added during processing or packaging. The product may still be high in naturally occurring sugar (concentrated fruit juice, for instance) and high in carbohydrate.
  • Reduced Sugar / Less Sugar: at least 25% less sugar than the regular version of that same product. Its reference point is the original product, not an absolute health standard — and 75% of a large amount is still a large amount.
  • Gluten-Free: less than 20 parts per million of gluten. The FDA chose that threshold because validated analytical methods could not reliably detect below it, and because most people with celiac disease tolerate trace amounts under that level. The claim is voluntary: its absence does not mean gluten is present, and its presence does not mean the product is low in carbohydrate.


This is where the health halo appears: a single health claim on a package leads shoppers to rate the whole product as lower in calories and healthier overall, and to eat more of it. The only cure is to treat the front of the pack as advertising and the back of the pack as information.


🇸🇦 What has changed on Saudi labels


Food labeling in the Kingdom is governed by three technical regulations from the Saudi Food and Drug Authority (SFDA): SFDA.FD/GSO 9 for labeling of prepackaged foods, SFDA.FD/GSO 2233 for nutritional labeling requirements, and SFDA.FD 2333 for health and nutrition claims. Any health phrase on a product sold in the Saudi market is expected to comply with these.


More recently, as of 1 July 2025 the SFDA began enforcing new requirements on restaurant and café menus — printed, digital, and delivery apps alike. They include a saltshaker symbol beside meals high in sodium (referencing the WHO recommendation of no more than 5 grams of salt, about one teaspoon, per adult per day), disclosure of caffeine content in beverages (with a 400 mg daily ceiling for adults and 200 mg in pregnancy), and a statement of the approximate physical activity time needed to burn off a meal's calories.


On front-of-pack labels, a study published in Frontiers in Nutrition in 2026 tested five labeling systems on 1,500 Saudi adults. The Multiple Traffic Light system performed best, with a 31% improvement in correct product choices (OR = 2.18), followed by health warnings (28%) and Nutri-Score (27%). A separate study in Frontiers in Public Health in 2025 with 2,509 adults in Riyadh found Nutri-Score substantially improved the ability to rank products by nutritional quality (OR = 5.81). The practical takeaway for shoppers: simplified symbols genuinely help — but they do not remove the need to read the back of the pack.


If you have diabetes or follow a low-carb diet


Your reading order shifts slightly:


  • Start with Total Carbohydrate per serving — not calories, not sugars.
  • Then fiber — the higher it is, the gentler the carbohydrate's effect on your blood sugar.
  • Then sugar alcohols if present, remembering that the different types vary considerably in their digestive effect.
  • Then protein and fat — both slow absorption and extend satiety.
  • Finally added sugars and sodium, using the 5%/20% rule.


And remember that the label tells you what is in the product, not how you will respond to it. Individual glycemic responses vary widely between people — something we explored in our guide to continuous glucose monitoring. The label narrows the field of smart choices; your own measurements pick from within it.


Common label-reading mistakes


  • Stopping at the front of the pack. The front is marketing; the back is information.
  • Ignoring servings per container. The most common hidden multiplier in nutrition.
  • Judging by the Sugars line instead of Total Carbohydrate.
  • Assuming "natural" means "low sugar." Honey, molasses, and date sugar are added sugars under the regulatory definition.
  • Comparing two products with different serving sizes. Standardize the basis (per 100 g) before comparing — which is the basis the Gulf nutrition panel uses.
  • Ignoring sodium in "healthy" products. Many low-sugar products compensate with salt.
  • Forgetting saturated fat — and for a product with high fiber but heavy processing, both lines deserve a look. Gut symptoms after a "healthy" swap are worth reading about in our piece on bloating and gas.


⚠️ Who should be especially careful — and talk to your doctor


Label literacy is useful for everyone, but some groups need it with greater precision: people with type 1 or type 2 diabetes, particularly those counting carbohydrates to adjust insulin doses; people with hypertension or kidney disease monitoring sodium and potassium; people with celiac disease who rely on the gluten-free claim and allergen warnings; pregnant and breastfeeding women with caffeine and certain additives; and anyone taking medication affected by food.


This article is educational and does not replace medical advice. If you manage a chronic condition, adjust a medication dose based on what you eat, or plan a substantial change to your diet, discuss it with your physician or a registered dietitian first. And never let a marketing phrase on a package stand in for a treatment plan.


🥖 How to read a Bakery 8 label


At Bakery 8 (مخبز ثمانية) in Riyadh, Saudi Arabia, the products are designed to be read, not merely believed. Apply the six steps above to our range and here is what you'll find:


  • Samoli bread, cloud bread, and toast: start with Total Carbohydrate rather than sugars — the base is almond flour rather than white flour, and added sugar isn't on the ingredient list at all.
  • Keto granola: read the fiber line against the 20% rule — this is exactly where a real granola separates itself from one built on a sweetening syrup in the first three ingredients.
  • Crackers and manakish: check sodium with the 5%/20% rule as carefully as you check carbohydrate — crackers are the category where salt is usually forgotten.
  • Sugar-free chocolate and desserts: look at which sweetener is named in the ingredient list, not at the phrase on the front — the specific name is the real information.


The rule we'd like you to leave with is not "buy from us." It is: apply the six steps to everything you buy, ours included. A product that survives a careful reading of its label is a product that has earned a place in your kitchen.


❓ Frequently asked questions


What is the difference between "Total Sugars" and "Added Sugars" on a label?


Total Sugars covers all sugar in the product, including what naturally occurs in milk and fruit. Added Sugars covers only what was added during processing or packaging, including sucrose, honey, syrups, and sugars from concentrated fruit juices. The Daily Value for added sugars is 50 grams; there is no Daily Value for total sugars.


Does "sugar-free" mean a product is suitable for people with diabetes?


Not necessarily. "Sugar-free" only means less than 0.5 grams of sugar per serving, and the product can still be high in carbohydrate from starch or flour. The number that matters for someone with diabetes is Total Carbohydrate per serving, alongside fiber. Read those two lines before you read the marketing phrase.


What is the 5% and 20% rule, and how do I use it?


It's the fastest way to interpret the % Daily Value column: 5% or less per serving means the product is low in that nutrient, and 20% or more means it is high. Aim for around 5% or less on sodium, saturated fat, and added sugars, and around 20% or more on fiber, potassium, and vitamin D.


How many grams of added sugar am I allowed per day?


The reference Daily Value on the label is 50 grams. The American Heart Association is more conservative: about 25 grams (6 teaspoons) for women and 36 grams (9 teaspoons) for men. The World Health Organization recommends under 10% of daily energy, and ideally under 5% — roughly 25 grams.


Why does one product list sugar under several different names?


Because ingredients are ranked in descending order by weight. Splitting the quantity across several different sweeteners keeps each individual name lower in the list, even though their combined weight might exceed the first ingredient. When you see three or more sweeteners in one product, add them up mentally before you judge it.


Does "gluten-free" mean low-carbohydrate?


No. "Gluten-free" is a voluntary claim meaning less than 20 parts per million of gluten — a protein question, not a carbohydrate one. Many gluten-free products are built on rice or corn starch and are high in carbohydrate. Always read Total Carbohydrate.


The bottom line


A nutrition label is the closest thing food has to a financial disclosure: mandatory, numeric, and free to anyone willing to turn the package over. Start with serving size, move to Total Carbohydrate, check added sugars against the 5%/20% rule, then read the first three ingredients. Thirty seconds, and your decisions in the aisle rest on numbers instead of slogans.


And if you want options built from the start to survive that reading — bread, granola, and cakes with no added sugar and no white flour — you'll find them at Bakery 8. Healthy and delicious.


References


  • U.S. Food and Drug Administration — How to Understand and Use the Nutrition Facts Label (the 5%/20% rule, Daily Values, dual-column labeling).
  • U.S. Food and Drug Administration — Added Sugars on the Nutrition Facts Label (definition of added sugars; 50 g Daily Value).
  • U.S. Food and Drug Administration — Questions and Answers on the Gluten-Free Food Labeling Final Rule (the 20 ppm threshold; 21 CFR 101.91).
  • World Health Organization (2015) — Guideline: Sugars Intake for Adults and Children (strong recommendation below 10%, conditional below 5% of energy).
  • American Heart Association — Added Sugars and What's the Difference Between Sugar Free and No Added Sugar? (daily ceilings; claim definitions).
  • American Diabetes Association — Making Sense of Food Labels (Total Carbohydrate; fiber thresholds of 5 g and 2.5 g per serving).
  • Saudi Food and Drug Authority (SFDA) — technical regulations SFDA.FD/GSO 9, SFDA.FD/GSO 2233, and SFDA.FD 2333 on food labeling and health and nutrition claims.
  • Saudi Food and Drug Authority (SFDA) — menu labeling requirements effective 1 July 2025 (saltshaker symbol, caffeine disclosure, equivalent physical activity time).
  • Arfaoui L, Alkhaldy A, Alareeshi A, et al. (2021) — Assessment of Knowledge and Self-Reported Use of Nutrition Facts Labels, Nutrient Content, and Health Claims among Saudi Adult Consumers. Journal of Multidisciplinary Healthcare; 14: 2959–2972 (n = 722).
  • Effectiveness of Front-of-Pack Nutrition Labels in Saudi Arabia: A Comparative Study — Frontiers in Nutrition (2026), n = 1,500 Saudi adults.
  • Comparing the Influence of Front-of-Pack Nutrition Labels on Saudi Consumers' Understanding and Food Selection — Frontiers in Public Health (2025), n = 2,509 adults in Riyadh.
  • Dietary Guidelines for Americans — recommendation to limit calories from added sugars to less than 10% of total daily calories.


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