Not all sugars need to be avoided. Naturally occurring sugars in whole fruit (fructose) and plain milk and yogurt (lactose) come packaged with vitamins, minerals and, in the case of fruit, fibre and antioxidants.
Added and free sugars are the ones to limit. Consuming them in excess is tied to a greater risk of weight gain, obesity, heart disease, Type 2 diabetes and dental caries.
Added sugars are used by the food industry (and at home) to add a sweet taste to foods, or to perform other roles such as thickening, texturizing or browning.They go by many different names including brown sugar, cane syrup, honey, brown rice syrup, maltose, dextrose and glucose-fructose.“Free” sugars, according to the World Health Organization, are added sugars as well as sugars naturally present in fruit juice and fruit juice concentrates. Once removed from whole fruit, these sugars are free to be added to foods for sweetening purposes.
Consider that355 ml of pure orange juice has 34 g of free sugars(8.5 teaspoons worth). You’d have to eat two large oranges to consume the same amount of sugar.
Lactose in milk and fructose in whole fruits and sweet vegetables are not considered free sugars