Sam McManis / McClatchy-Tribune News Service

We heard it through the grapevine that it’s time to put down the junk food and chew on something naturally sweet — a raisin quiz.

1. Not to slam the competition, but the California Raisin Marketing Board is boasting that a quarter-cup of raisins contains how much more potassium than a quarter-cup of banana?

a) 237 milligrams

b) 74 mg

c) 35 mg

2. What substance found in raisins can help kill bacteria that lead to cavities and periodontal disease?

a) Folic acid

b) Oleanolic acid

c) Tartaric acid

3. How many pounds of grapes does it take to make 1 pound of raisins?

a) 1

b) 4

c) 21.5

4. Roughly half the world’s raisins are grown where?

a) Algeria

b) Italy

c) California

5. What were the names given to the singing raisins in the “California Raisins” television commercials?

a) Ben Indasun, Justin X. Grape and Tiny Goodbite

b) Manny Wrinkles, Dot Sagrape, Sugar Galore

c) Heywood U. Buyme, Hugh G. Grape, Sasha Taste

ANSWERS: 1: c; 2: b; 3: b; 4: c; 5: a.