Question

which of the following foods ranks low on the glycemic index?
o a. white rice
o b. barley
o c. watermelon
o d. sweet potato

Explanation:

• White rice: High glycemic index (GI) as it is highly processed and digests quickly, causing a rapid rise in blood sugar.
• Barley: Low GI. It contains more fiber (especially beta - glucan) which slows digestion and glucose absorption.
• Watermelon: High GI. Despite being a fruit, it is quickly digested and causes a relatively fast increase in blood sugar.
• Sweet potato: Medium to high GI depending on preparation (e.g., baked sweet potato has a higher GI than some other forms, but generally not as low as barley).

Answer:

B. Barley