Q. I have read in your column about using Certo in white grape juice for arthritis relief. Does it have to be white grape juice, or would purple grape juice or pomegranate juice work just as well?

A. Many readers have had similar questions. Most people who use Certo in grape juice use purple or red grape juice rather than white grape juice. One reader who tried pomegranate juice with Certo found it helpful: "I've read about grape juice and Certo for easing joint pain, but I don't like grape juice. I tried pomegranate juice with Certo instead.

"After just a couple of days, the results are amazing! I can comfortably make a tight fist now, which means I can throw punches in aikido class again without jamming an arthritic knuckle.

"As an EMT, I'm definitely in tune with conventional modern medicine. This remedy has me stumped, but there is no doubt that it really worked quickly and effectively for me."

For more details about Certo in juice or other natural remedies for joint pain, we are sending you our Guide to Alternatives for Arthritis. Anyone who would like a copy, please send $3 in check or money order with a long (No. 10), stamped (61 cents), self-addressed envelope to: Graedons' People's Pharmacy, No. AA-2, P.O. Box 52027, Durham, NC 27717-2027.

Joe and Teresa Graedon answer letters from readers. Write to them via their Web site: www.PeoplesPharmacy.com. Their newest book is "Recipes & Remedies From The People's Pharmacy."