Does rice contain sugars

Answer 1

yes it does have sugar
Wheat, Rice, and all grains contain complex carbohydrates.

Essentially a carbohydrate is a long chain of sugars, but they take time to digest unlike simple sugars (1 and 2 elements called monosaccharides & disaccharides) that essentially enter the blood immediately after ingestion and are available for use by the body. The carbohydrates don't have the sweet flavor of their constituent sugars either.

Milk contains a large amount of lactose, a disaccharide.

Not all starches are the same. Amylose is a type of starch that is slower for the body to digest (convert to simple sugars) than other types of starches. Long grain rices tend to have higher amylose contents than short grain rices, and thus are digested slower and have a lower immediate availability of sugars.

There is a natural enzymatic method called Malting, or the production of Malt Syrup that uses heat and natural enzymes to break existing complex carbohydrates into simple sugars. Barley and Rice Malts are common. Barley Malt, of course, can be used as a natural sweetener, or in the production of alcohol.

Likewise, Rice Malts can be used as sweeteners, or potentially in alcohol production, although apparently the production of Sake uses a mold mediated step called Koji for the purpose of converting the starches into simple sugars for brewing.

Answer 2

Yes. Rice (and all grains) contain complex carbohydrates (sugars, by definition). However, these are not simple sugars, and do not promote Diabetes in the way that sucrose and high-fructose corn syrup do.