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    The Gluten-Free Diet 101 - A Beginner's Guide to Going Gluten-Free

    Reviewed and edited by a celiac disease expert.

    Everything you need to know to start a safe, healthy gluten-free lifestyle — from diagnosis and testing to shopping, cooking, and dining out.

    The Gluten-Free Diet 101 - A Beginner's Guide to Going Gluten-Free - Image: Celiac.com
    Caption: Image: Celiac.com

    Celiac.com 10/29/2025 – Welcome to your ultimate beginner’s guide to celiac disease and gluten-free living. Whether you’re newly diagnosed or just exploring the gluten-free lifestyle, this guide will help you get started with confidence.

    Eating gluten-free can dramatically improve your health if you have celiac disease or gluten intolerance. However, it’s important not to begin a gluten-free diet without medical supervision. Always consult with a qualified doctor or nutritionist before making major dietary changes—they can help ensure a safe, balanced transition.

    Celiac.com Sponsor (A12):
    If you suspect gluten intolerance or celiac disease, get tested before removing gluten from your diet. Once you start eating gluten-free, tests for celiac disease may no longer be accurate.

    Celiac Disease Testing

    To get accurate results, you must consume gluten for at least 6–8 weeks before blood tests and 2 weeks before a biopsy for celiac disease (learn more here). The FDA has approved a new test for celiac disease, so talk to your doctor about the latest testing options.

    Prescription: A Gluten-Free Diet

    Once diagnosed, your only treatment is a strict gluten-free diet. The good news: many people notice relief from symptoms within weeks. Complete intestinal healing can take 3–6 months for most people, though it may take up to 18 months or more.

    Research suggests that supplements like L-glutamine and collagen may support gut healing—but be sure all supplements are clearly labeled “gluten-free.” You can find support and advice in our Celiac.com forums, where members share tips and product recommendations.

    Create New Gluten-Free Habits

    Transitioning to a gluten-free lifestyle means changing how you think about food, cooking, and even socializing. To avoid cross-contamination:

    • Keep gluten out of your kitchen and off your utensils.
    • Avoid kissing or sharing utensils with someone who’s eaten gluten.
    • Be careful when eating out—only choose restaurants that understand gluten-free food prep.

    For more help, visit Celiac.com’s extensive collections of gluten-free food lists, including ice cream, Halloween candy, Easter candy, snacks, beers, wines, and liquors.

    What “Gluten-Free” Really Means

    Gluten is found in wheat, rye, and barley. The FDA regulates the “gluten-free” label and allows it on foods containing less than 20 parts per million (ppm) gluten. Remember, “wheat-free” doesn’t mean “gluten-free.”

    Gluten-Free Shopping Tips

    Shopping gluten-free takes time at first. Always read ingredient labels carefully, plan your meals, and stock up on safe staples. Compare products against these lists:

    Setting Up a Gluten-Free Kitchen

    Avoiding cross-contamination is critical. If possible, maintain a fully gluten-free kitchen. If that’s not feasible:

    • Dedicate cutting boards, sponges, toasters, sifters, and utensils for gluten-free use.
    • Label shelves and cupboards.
    • Clean all surfaces thoroughly before preparing food.

    Find helpful resources for gluten-free recipes and cooking tips on Celiac.com.

    Dining Out Gluten-Free

    Dining out can be risky. Studies show that 1 in 3 “gluten-free” restaurant meals contain gluten. Always ask about preparation methods and kitchen safety. You may also consider taking AN-PEP enzymes like GliadinX to help break down trace gluten if contamination occurs.

    Gluten-Free Bathroom & Personal Care

    Watch out for gluten in cosmetics and personal care products, especially lipsticks, lotions, and toothpaste. Those with dermatitis herpetiformis may react even to topical gluten. Switch to gluten-free hygiene products whenever possible.

    Gluten-Free Medications & Supplements

    Medications and supplements can contain gluten as fillers. Verify with your pharmacist and check the DailyMed database for inactive ingredients under “Ingredients and Appearance.” Always confirm with the manufacturer if you are uncertain.

    Additional Considerations

    Children with Celiac Disease: Communicate with teachers and staff about your child’s dietary needs. Education and planning are key to safety.

    Pets: Pet food and kisses can be hidden sources of gluten exposure. Consider gluten-free or grain-free options.

    Other Food Sensitivities: Some people also react to dairy, soy, or corn. Keep a food diary and consider an elimination diet with your doctor’s guidance.

    Final Thoughts on Going Gluten-Free

    Be Picky: Trust your body and don’t feel guilty about declining unsafe foods. Everyone’s sensitivity level differs.

    Be Prepared: Keep gluten-free snacks handy in your car, bag, or office to avoid risky last-minute food choices.

    Gluten-Free Quick Check

    • Always read labels
    • Call manufacturers if unsure
    • Avoid cross-contamination
    • Check personal-care products
    • Verify supplements and prescriptions
    • Keep a food diary
    • Join our forum for support
    • If in doubt, don’t eat it

    Helpful Gluten-Free Resources

    Celiac Disease & Gluten-Free Forum – Get real advice from people living gluten-free.

    More Resources:

    For detailed ingredient safety and certified product guides, see:



    User Feedback

    Recommended Comments



    Guest Nori
    Be careful OATS may be gluten free, but OATS have a protein call AVENIN that reacts like gluten in the small bowel(intestines), and can cause similar symptoms as gluten.

    I always wondered about OATS. One must be vigilant.

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    Guest The C Word, No Seriously

    Posted

    This is a great article that really considers the specifics when it comes to coeliac disease. My sister is a coeliac and has been now for a few years. When she was first diagnosed it completely changed not only her food options but also lifestyle choices. She is very allergic to the point where a crumb of bread left over from the knife used before her can make her extremely sick. I like your attention to detail when it comes to being careful about products. As a coeliac you can never be too careful. It is important to take care of yourself and not worry about appearing annoying to others especially when you have the right to eat what you want. Be confident enough to keep asking the wait staff at a restaurant if your not sure about something. And if they still don't seem interested or helpful don't be afraid to ask them to check again and again until someone will help you.

    Even though it has taken some time my sister is confident enough to ask around before eating anything she is unsure about. To the point where a normal question in a busy bar on a Saturday night for her is "Do you use Belvedere vodka?", because for those who aren't aware Belvedere (and a lot of other brands of vodka) contains wheat.

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    Guest Cindy
    Be careful OATS may be gluten free, but OATS have a protein call AVENIN that reacts like gluten in the small bowel(intestines), and can cause similar symptoms as gluten.

    Oats were the first thing I noticed sensitivity to.

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    Guest Regina Vought

    Posted

    This article scared me to death since I'm getting tested next week. I don't know how I am going to avoid the cross contamination which may I add looks impossible especially if you live with others who are not celiacs.

    It's not impossible at all. I was the only one in my family and I know lots of other families that are as well. Just takes more effort and basically two of everything in your kitchen. Keep everything in separate cabinets and separate shelves, etc.. Easier than you think once you get into the habit and get your family used to it.

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    Guest AnonymousCda

    Posted

    For Supplements please think about taking Amino Acids. The blood cells need nutrients to operate properly. So keep those muscles, tendons, tissues operating at top notch levels.

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    KMiller1111

    I was just diagnosed and so thankful to have found your post. 

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    Guest Kai

    Hi!

    FYI I just checked the Nima website- it was sold to Medline in 2020. Med line no longer manufactures the machine or the required tablets. 

    Just found this website and it's great! Most thorough gluten containing list I've found. The support is upbeat and realistic. Thank you!

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    Scott Adams

    I do still see the Nima Sensor being sold on Ebay and FSAStore.com, so I'm not sure if it isn't still being made.

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    Sahamies

    I have had to add rice and corn allergy to my gluten intolerance.  It is not so hard.  I can have eggs for breakfast.  Cereal and toast are fattening anyways.  For lunch you can have a salad instead of a sandwich if you are at work.  Dinner is meat and vegetables, no problem.  Desert can be fruit and ice cream, if you can tolerate dairy.  On the weekends, you can have soup and salad instead of soup and bread. I have not tried any fake grains like quinoa.  Just stick with fruit, vegetables and meat.  Everything in moderation.

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    Sahamies
    On 2/6/2012 at 8:35 AM, Guest Truth said:

    Because there's no pharmaceutical cure and ergo they don't get any kickbacks to treat it.

     

    On 12/18/2012 at 1:21 AM, Guest Lindsey said:

    Don't forget things like antacids, Maltodextrin (which is in everything) is NOT gluten free. It makes it hard to take a fast acting antacid, of course if I didn't slip and eat gluten I wouldn't need it... Catch-22.

    I think don’t know that much about nutrition.  They know a lot about diseases.  They think cholesterol is a problem and it isn’t. If you think you have a problem with food, you can experiment doing without certain foods to see which food is bothering you.

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    Sahamies
    On 11/6/2014 at 7:11 AM, Guest Marilyn said:

    I had blood tests a year ago but heard nothing back and assumed didn't have celiac disease. Went to a new doctor recently and found out that the previous blood test showed I had a high reading but no other indications of the disease. I have been experiencing erratic bowel habits and iron deficiency and constant dull head aches. New doctor has retested and am awaiting the results. The above article has been most interesting and a little scary, but very helpful.

    You don’t need a doctor to tell you that you are gluten intolerant.  If gluten makes you sick, then you are gluten intolerant.  You don’t need replacements either.  It doesn’t just include wheat, oats,rye, and barley.  Corn and rice have gluten in them too, but it isn’t as strong.  Quinoa and buckwheat aren’t grains, but they may bother you too.

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    Hishin
    On 10/27/2010 at 12:30 AM, Guest Diane said:

    This article scared me to death since I'm getting tested next week. I don't know how I am going to avoid the cross contamination which may I add looks impossible especially if you live with others who are not celiacs.

    I wonder how it would be possible to measure intolerance levels. My nephew is completely intolerant where as I have a minor intolerance with mild symptoms. Even if not Celiac it may be worth looking at removing gluten from your diet to see if it helps. Certainly affected my hyperthyroidism and UC. 

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    This is now closed for further comments

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  • About Me

    Scott Adams

    Scott Adams was diagnosed with celiac disease in 1994. Faced with a critical lack of resources, he dedicated himself to becoming an expert on the condition to achieve his own recovery.

    In 1995, he founded Celiac.com with a clear mission: to ensure no one would have to navigate celiac disease alone. The site has since grown into one of the oldest and most trusted patient-focused resources for celiac disease and the gluten-free lifestyle.

    His work to advance awareness and support includes:

    Today, Celiac.com remains his primary focus. To ensure unbiased information, the site does not sell products and is 100% advertiser supported.

    Scott Adams


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    Celiac.com 10/29/2025 – Welcome to your ultimate beginner’s guide to celiac disease and gluten-free living. Whether you’re newly diagnosed or just exploring the gluten-free lifestyle, this guide will help you get started with confidence.
    Eating gluten-free can dramatically improve your health if you have celiac disease or gluten intolerance. However, it’s important not to begin a gluten-free diet without medical supervision. Always consult with a qualified doctor or nutritionist before making major dietary changes—they can help ensure a safe, balanced transition.
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