“The most important thing to do after being diagnosed is to get a dietary consultation,” Dr. Murray said. With planning, you can learn to base your diet on fruits, vegetables, rice and potatoes. “I have some patients who rarely use those special gluten-free products,” he said.

Get in the habit of reading labels, advises Elaine Monarch, executive director of the Celiac Disease Foundation, a nonprofit organization in Studio City, Calif. Soy sauce, for instance, often has wheat protein as a filler. But Ms. Monarch found a brand of light soy sauce at her local grocery with no wheat that cost much less than one specifically marked as gluten-free. “There are often alternatives to specialty products, but you have to look,” she said.

Gluten-free bread is more expensive than traditional bread and often less palatable. And that holds for many gluten-free items. Some people, including Mr. Oram, end up buying a bread machine and making their own loaves. Nicole Hunn, who cooks gluten-free meals for her family of five and just started the Web site glutenfreeonashoestring.com, avoids mixes, which she says are expensive and not that tasty, and instead bakes with an all-purpose gluten-free flour from a company called Bob’s Red Mill, which can be used in place of wheat flour in standard recipes.

If you’re too busy to cook, look for well-priced gluten-free food at large chains like Whole Foods Market and Trader Joe’s. “Trader Joe’s now carries fantastic brown rice pasta that is reasonably priced and brown rice flour tortillas that can sub for bread with a variety of things,” says Kelly Courson, co-founder of the advice site CeliacChicks.com. Ms. Courson put out a Twitter message to her followers and learned that many were fans of DeBoles gluten-free pastas, which can be bought in bulk on Amazon, and puffed brown rice cereal by Alf’s Natural Nutrition, just $1 a bag at Wal-Mart.

Finally, it may be worthwhile to join a celiac support group. You can swap cost-cutting tips, share recipes and learn about new products. Many groups invite vendors to bring gluten-free products to meetings for members to sample  members can buy items they like at a discount and skip the shipping charges. Support groups typically have meetings, as well as newsletters and Web sites where you can post questions. Groups to check out include the Celiac Disease Foundation and the Gluten Intolerance Group of North America.

Finally, if you itemize your tax return and your total medical expenses for the year exceed 7.5 percent of your adjusted gross income, you can write off certain expenses associated with celiac disease. You can deduct the excess cost of a gluten-free product over a comparable gluten-containing product.

Let’s say you spend $6.50 on a loaf of gluten-free bread, and a regular loaf costs $4; you can deduct $2.50. In addition, you can deduct the cost of products necessary to maintain a gluten-free diet, like xanthan gum for baking. If you mail order gluten-free products, the shipping costs may be deductible, too. If you have to travel extra miles to buy gluten-free goods, the mileage is also deductible. You’ll need a doctor’s letter to confirm your diagnosis and your need for a gluten-free diet, and you should save receipts in case of a tax audit.