The best way to avoid added sugars is to look at the ingredients list for the following items. This list is not complete, but I've organized it into categories to make it easier to remember and draw conclusions about unnamed ingredients.
Obviously, anything labeled "sugar", such as:
- brown sugar [1] [2]
- confectioner's powdered sugar [1]
- invert sugar [1] [2]
- raw sugar [1] [2]
- sugar [1]
- white granulated sugar [1]
- cane sugar [2]
- date sugar [4]
- sugar beet/beet sugar [5]
Many things labeled as "syrup"
- corn syrup/corn syrup solids [1] [2]
- high-fructose corn syrup (HFCS) [1] [2]
- malt syrup [1] [2]
- maple syrup [1] [2]
- pancake syrup [1]
- honey syrup [2]
Many things labeled as "juice"
- Evaporated cane juice [2] (may be listed as 'cane juice', 'cane juice solids', 'cane juice crystals' or dehydrated cane juice)
- Fruit juice concentrates [2] (or listed as a specific fruit)
- Fruit juice (or listed as a specific fruit)
In chemistry, sugar names end in -ose
- dextrose [1] [2] (also anhydrous dextrose [1])
- fructose [1] [2] (also crystalline fructose [2])
- lactose [1]
- maltose [1] [2]
- sucrose [1] [2]
- glucose [2]
And some ingredients that you might find in your own kitchen
- honey [1]
- molasses [1] [2]
- nectars (e.g., peach nectar, pear nectar) [1]
- Agave nectar [2]
Miscellaneous other ingredients that can signal sugars:
- cane crystals [2]
- corn sweetener [2]
- Maltodextrin [3]