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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 Tracey Buckner

    Posted

    Our daughter just might have it. She has stomach aches all the time after eating, and headaches also. She is always tired and has no energy. This is very helpful, and I will look more to see if she has it...

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    Guest Becci

    Posted

    Very good article! I was diagnosed with celiac disease this past Nov/2013 and I'm happy to say I finally have my life back now that I'm gluten free! I have no more joint pain, depression, stomach bloating and bouts with abdominal cramping that came along with diarrhea almost daily. I would strongly recommend that if you are having symptoms to give it a try you may find this was all you needed to do all along is remove the gluten from you diet. I have also lost over 30 lbs that I greatly needed to get rid of!

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    Guest Becci

    Posted

    having celiac doesn't always mean your thin. Ii am very heavy with a slow thyroid as well as having celiac. i find the glutton free goodies to very sugary and very fattening. I dont think those that have lost the weight would loose more, but you should definitely eat more proteins. I was diagnosed 10 years ago and did not follow a glutton free lifestyle and I'm paying for it now.

    I agree, I have celiac disease and was overweight and have since lost 30lbs that were very difficult for me to lose before I was gluten free.

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    Guest Deborah Harracksingh

    Posted

    I have just been diagnosed with celiac. I also have hypothyroidism, high blood pressure and I am pre-diabetic. In my country very little in food is listed as gluten free. Gluten free products are very expensive and information on how to cook these products is limited to the internet and Indian trade shows. I bought gluten free recipe books but these are not very good. I would like to understand how to use gluten free products to cook for myself.

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    Guest Oscar

    I am not sure where you are getting your information, but great topic. I need to spend some time learning much more or understanding more. Thanks for great info I was looking for this information for my mission.

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    Guest Marilyn

    Posted

    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.

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    Guest Wendy Finlayson

    Posted

    Great advice. Substitutes for grains containing gluten are widely available now. Did you know chia seeds and flaxseeds (ground) can be added to a gluten free flour recipe to add stretch and keep the dough from being quite so brittle? Stock up on chia and flax if you want to do your own gluten-free baking.

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    Guest Lori Schmuck

    Posted

    I love reading everyone's story to find the truth about what's wrong with their body. I'm trying to find some information out about being on the gluten-free diet for 30 years. I'm now 56 and my body is changing, it seems like in the last 5 years the weight gain is terrible. Does anyone know of a good Celiac book for information on years being on a gluten-free diet. And I will be honest with you, I was really sick for many years and no one could tell me what was wrong until my husband and I moved out of the country into Mexico. I started getting sores that started on my legs and stomach. I went to the doctor had him cut one of the sores out. Test came back that I had celiac disease and both parts dermatitis hemaphosis and food problems like diarrhea. After finding this out I changed my life. I have never once cheated, because I know how sick I was and I never wanted to go down that road again. But what happens to us later in life being on a celiac diet? Any input would really help.

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    Guest Michelle

    Posted

    According to Celiac.com's Safe Ingredient List, Maltodextrin IS gluten free, except in pharmaceuticals.

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    Guest okiisan

    Posted

    My Daughter and Son (ages 3 and 1) have just been diagnosed with celiac disease. It has been a daunting task to rid our house of gluten. I have found this article very helpful. Thank-you.

    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.

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    Guest okiisan

    Posted

    Great advice. Substitutes for grains containing gluten are widely available now. Did you know chia seeds and flaxseeds (ground) can be added to a gluten free flour recipe to add stretch and keep the dough from being quite so brittle? Stock up on chia and flax if you want to do your own gluten-free baking.

    As long as there is no cross contamination in the growing, harvesting, handling or packaging of "gluten free" products.

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    Guest Nancy

    Posted

    I live in a house with 7 other people, none of whom have had the constant problems that I have... I had a blood test done to check for celiac and it came back negative, but I've had constant gastrointestinal issues since I was a child. I don't see how I'm going to manage trying a gluten free diet (especially with all of the avoiding cross contamination and the constant worrying) with so many other people in my house. I'm extremely underweight as is, and looking at all of the things that I cannot eat... I fear I may wind up even worse than if I just kept eating what I do already!

    You should see a gastroenterologist who would do the latest tests, including genetic testing. They may have to do a biopsy. Don't go on a gluten-free diet during any testing. If your insurance will not cover this, go on MediBid.com to find a specialist who will take cash.

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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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    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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