Which statement is true about simple carbohydrates?

Which statement is true about simple carbohydrates?

• A. They generally have a high GI
• B. They generally have a low GI
• C. They contain no sugar
• D. They are the only source of energy

Answer: (A)

Simple carbohydrates are made up of one or two sugar molecules and are digested quickly. Because they’re broken down and absorbed rapidly, they cause a quick rise in blood glucose, which is reflected in a high glycemic index. That’s why the statement about having a high GI is true. They do contain sugar, so saying they contain no sugar isn’t correct. They aren’t the only energy source— fats and proteins can supply energy too— and they’re not inherently low GI; in fact, many simple sugars raise blood glucose quickly, though some individual sugars can have lower GI.

Simple carbohydrates are made up of one or two sugar molecules and are digested quickly. Because they’re broken down and absorbed rapidly, they cause a quick rise in blood glucose, which is reflected in a high glycemic index. That’s why the statement about having a high GI is true. They do contain sugar, so saying they contain no sugar isn’t correct. They aren’t the only energy source— fats and proteins can supply energy too— and they’re not inherently low GI; in fact, many simple sugars raise blood glucose quickly, though some individual sugars can have lower GI.