Total sugar includes all sugar in a food. Added sugar is the part added during preparation or manufacture under the relevant label definition. It is already included in total sugar. Do not add those numbers together. And do not treat naturally occurring sugar as energy free just because its origin sounds more appealing.
The source helps explain the food. It does not make the calories disappear. Milk, whole fruit and syrup differ in their wider food package, not because one has magical sugar.
Added sugar versus total sugar on a label
Indian labelling rules define sugars as the relevant simple sugars, including glucose, fructose, sucrose and lactose. Added sugars are those added to foods and drinks. [1]
Imagine a yogurt label showing 12 g total sugars and 7 g added sugars per serving. The total is 12 g, not 19 g. The remaining 5 g comes from sugars not counted as added in that example.
Milk naturally contains lactose. Fruit contains naturally occurring sugars too. Their presence can raise total sugar even when table sugar has not been added.
These are category explanations, not nutrition values for every yogurt or fruit product.
Free sugars are a related but different term
Public health guidance often uses free sugars. The WHO definition includes added sugars plus sugars naturally present in honey, syrups, fruit juices and juice concentrates. It excludes sugars inside intact fruit and vegetables and those naturally present in milk. [2]
That is not exactly the same as the added sugar line on every national label. Check which definition a recommendation uses before comparing numbers.
For example, an unsweetened fruit juice can still contribute free sugars. “Nothing added” does not mean it is equivalent to eating intact fruit.
Origin does not erase dose
Sugar from honey still contributes energy. A natural sounding sweetening ingredient is not a reason to ignore the amount. At the same time, total sugar alone cannot describe the whole food.
Plain milk and a sugary drink can provide very different food packages, even if a serving contains a similar sugar amount. Protein, nutrients and how the food is used also matter.
In trials reviewed by Te Morenga and colleagues, changes in sugar intake affected body weight mainly when energy intake changed. Replacing sugar with other carbohydrate at equal energy did not show the same weight effect. [3]
That is a reason to look at the full diet, not a claim that sugar amount never matters.
Read sugar claims carefully
“No added sugar” has specific conditions in India. FSSAI includes restrictions on using sugar containing ingredients as substitutes for added sugar, such as dried fruit paste used for that purpose. [4]
So it is not enough to check whether the recipe avoids white sugar. The purpose and composition of other ingredients matter too.
Our no added sugar and calories guide explains why the claim still does not guarantee a low calorie product.
Use the numbers together
Check the serving basis first. Then read total sugar, added sugar and calories alongside protein, fibre and fats. If two products have different serving sizes, convert them before comparing.
Use total and added sugar to understand the recipe accurately. Read the portion and the food around the sugar too. Natural is not a calorie exemption, and added is not a complete description of the food. The label gives you numbers for a reason.