50 Certified Gluten-Free Oat Brands (UK & US)

Oats are a breakfast favourite for millions, offering a heart-healthy, fibre-rich way to start the day. But for those with coeliac disease or gluten intolerance, not all oats are safe. Cross-contamination during growing, milling, and packaging can mean gluten makes its way into otherwise gluten-free oats.

That’s where certified gluten-free oats come in – rigorously tested, carefully produced, and clearly labelled.

Whether you’re in the UK or the US, here’s a comprehensive guide to 50 certified gluten-free oat brands you can trust.

25 Certified Gluten-Free Oat Brands in the UK

1. Glebe Farm Foods (UK) – Produces gluten-free porridge oats and oat flour grown on their own farm. Glebe Farm is uniquely “the only farm in the UK” that grows and processes pure oats, certified gluten-free from seed to bowl​. Their oats carry the Coeliac UK Crossed Grain symbol and offer 100% gluten-free assurance.
2. Freee by Doves Farm (UK) – Offers organic gluten-free porridge oats. Freee’s oats are British-grown, batch-tested, and certified by Coeliac UK. Sold in canisters and sachets, these rolled oats are clearly labeled gluten-free (Crossed Grain symbol) and are ideal for porridge, overnight oats, or baking.
3. Nairn’s (UK) – Known for oatcakes, Nairn’s also sells Gluten Free Scottish Porridge Oats. Their wholegrain rolled oats are grown in dedicated fields and milled separately to avoid contamination. Packages are Certified by Coeliac UK (displaying the Crossed Grain logo). Nairn’s gluten-free range includes porridge oats, oat muesli, and various oat-based biscuits.
4. Mornflake (UK) – A historic British oats brand (since 1675) now with a gluten-free line. Mornflake Gluten Free Porridge Oats are milled from whole oats in a dedicated wheat-free supply chain and licensed by Coeliac UK. They come as fine-cut porridge oats for quick cooking. Mornflake’s gluten-free oats are sold in 600g bags and marked with the Crossed Grain symbol.
5. Quaker Oats – Gluten Free (UK) – Quaker UK offers a Gluten Free Wholegrain Rolled Oats canister (510g) and gluten-free instant porridge sachets. These oats meet the <20ppm gluten standard and are labeled “Gluten Free” on the package​. (Note: Quaker uses controlled milling to prevent cross-contact. The UK packs state “Meets the standard for gluten free” on the label.)
6. Juvela (UK) – Juvela, a brand often prescribed to coeliacs, provides Gluten-Free Pure Oats (500g). These oats are specially sourced and tested to be safe for coeliacs. (They are sold via pharmacies and online.) The oats are labeled gluten-free and are suitable for porridge or baking. Juvela ensures their “pure oats” are uncontaminated throughout farming and production.
7. Delicious Alchemy (UK) – This dedicated gluten-free brand offers Gluten Free Oats (450g and 750g bags) and oat-based muesli. The oats are “specially grown, harvested and tested at every stage to ensure they are safe” for coeliacs. Delicious Alchemy porridge oats carry the Crossed Grain logo. (They are known as “gloriously gluten free” oats, available in supermarkets’ free-from aisles.)
8. Amisa Organic (UK) – Amisa produces Organic Pure Porridge Oats that are batch-tested to be gluten-free using the ELISA method. These wholegrain oats (325g or 1kg packs) are grown in uncontaminated fields. Amisa’s gluten-free oats (often sold in health shops) are perfect for porridge or baking and are clearly marked gluten-free on the package.
9. Flahavan’s (Ireland/UK) – Ireland’s oat miller offers Gluten Free Irish Pure Oats (550g) that are certified by the Coeliac Society of Ireland. These oats are grown under stringent controls (dedicated fields, cleaned equipment) and tested throughout processing to ensure <20ppm. Flahavan’s gluten-free rolled oats are sold in the UK/Ireland and carry a gluten-free symbol, providing traditional Irish porridge oats safe for coeliacs.
10. Kelkin (Ireland/UK) – Kelkin’s Gluten Free Pure Oat Porridge (450g) is another option from Ireland, available in some UK retailers. The oats used are guaranteed gluten-free (grown and milled to avoid contamination)​. Kelkin’s packaging highlights that the oats are wheat- and gluten-free. (They also offer gluten-free instant porridge blends with rice and millet flakes.)
11. Alara Wholefoods (UK) – Alara makes an Organic Gluten Free Scottish Porridge Oats (500g) that is produced from oats grown in the Scottish Borders under purity protocol. It’s free from cross-contamination and organic​. The oats are high in beta-glucan fiber and make a creamy porridge. Alara also has gluten-free mueslis – all clearly labeled with the Crossed Grain logo.
12. Nom Wholefoods (UK) – Nom sells Organic Gluten Free Porridge Oats in bulk/refill packaging. These oats are certified gluten-free (nominally under 20ppm)​. They are rolled “pinhead” oats that cook quickly. Nom Wholefoods emphasizes sustainable packaging (available in paper bags or jar refills) while providing pure gluten-free oats for the eco-conscious coeliac.
13. MOMA Foods (UK) – MOMA (Making Oats More Awesome) offers Gluten Free Jumbo Oats (450g) as well as instant porridge sachets. Their British-grown jumbo oats are naturally gluten free and tested to ensure safety​. MOMA’s gluten-free oats are big, chunky flakes for a chewier porridge. They are labeled gluten-free and suitable for vegans, providing a hearty option for coeliacs.
14. Kavanagh’s (UK/Ireland – Aldi) – Kavanagh’s Organic Gluten Free Porridge Oats (500g) are sold in Aldi stores. These oats are grown under strict conditions and milled in a gluten-free facility, then packaged for Aldi’s “Has No Gluten”/free-from range. (Aldi’s product displays “Gluten Free” on the front; Kavanagh’s oats are tested and free from gluten contamination.) They are a budget-friendly certified option for coeliacs.
15. Lidl Just Free Oats (UK/Ireland) – Lidl’s Just Free line includes Gluten Free Porridge Oats (500g). Initially sold under the “Just Free” brand, Lidl’s gluten-free oats are now supplied by Kearney’s Free From Foods in Ireland. The oats are grown and processed to be 100% gluten-free​. They’re available in Lidl’s Northern Ireland and Republic of Ireland stores, offering an affordable pure oat option with gluten-free labeling.
16. M&S Made Without (UK) – Marks & Spencer’s Made Without range features Gluten Free Traditional Porridge Oats (500g). M&S carefully sources these oats to ensure no gluten cross-contact​. They are labeled with “Made Without Wheat” and a gluten-free logo. These rolled oats have a nutty flavor and cook into a creamy porridge – an own-brand choice for coeliac customers.
17. Tesco Free From (UK) – Tesco produces Free From Pure Oats (450g) in their own-brand free-from range. The oats are from growers following purity protocol – “carefully grown and specially selected” gluten-free oat flakes​. Tesco Free From oats are clearly marked gluten-free and are a convenient choice for UK shoppers (often priced competitively).
18. Sainsbury’s Deliciously Free From (UK) – Sainsbury’s offers Free From Porridge Oats (450g) under its own label. The packaging notes the oats have been “carefully sourced to ensure they are free from gluten”. They bear a gluten-free badge. These oats are perfect for porridge or baking, and are widely available in Sainsbury’s stores.
19. Asda Free From (UK) – Asda’s free-from line includes Pure Gluten Free Porridge Oats (450g). They are labeled “Free from Gluten” and processed to prevent cross-contact​. Asda’s oats are quick-cooking and come with recipe ideas on the pack. They provide a safe breakfast staple for coeliacs, usually at a value price point.
20. Waitrose Free From (UK) – Waitrose sells Gluten Free Porridge Oats (400g) in its Love Life Free From range. These are rolled jumbo oats that are grown and milled under gluten-free conditions​. They produce a hearty, wholegrain porridge. The package carries a gluten-free label, and customer reviews have noted there’s “no evidence of cross contamination – all good!”​.
21. Morrisons Free From (UK) – Morrisons has Gluten Free Porridge Oats (available in 1kg bags). They are produced to be free from gluten; the supplier uses controlled farming and milling. (Morrisons lists that these oats are high in fiber and “hearty and warming”, with no gluten-containing ingredients​.) Look for them in the Free From aisle, clearly marked gluten-free.
22. Bauckhof (Germany, sold in UK) – Bauckhof is a German organic brand whose Glutenfrei oatmeal is found in some UK health stores. Bauckhof’s Organic Gluten-Free Rolled Oats are guaranteed gluten-free by the manufacturer. They are produced on a dedicated organic farm and milled in a gluten-free facility. These fine rolled oats are popular in Europe for porridge or baking.
23. Biona Organic (UK) – Biona offers Gluten Free Pure Porridge Oats (often in 750g packs). Biona’s oats are organic and tested to be under 20ppm gluten. (Their product listing highlights that the oats are batch tested gluten-free similar to Amisa’s, since Biona and Amisa are sister brands.) These oats provide a high-fiber, wholegrain breakfast that is safe for those with coeliac disease.
24. Co-op Free From (UK) – The Co-operative grocery chain has Free From Porridge Oats (450g) as part of its free-from selection. The oats are grown and processed with care: “These Free From Oats have been carefully produced so they are free from cross-contamination with other grains.”. They are labeled gluten-free and milk-free. Co-op’s oats give coeliacs another easily accessible option for pure oats.
25. Holland & Barrett (UK) – Health retailer H&B sells Gluten Free Jumbo Oats (1kg) and regular oats (450g) under its brand. These oats are sourced from certified gluten-free producers (previously under Neal’s Yard Wholefoods branding). They are high in fiber and clearly marked gluten-free. (For example, H&B’s 450g oats are advertised as gluten-free on their site.) They make a great base for porridge or homemade granola, and are available through H&B stores and online.

25 Certified Gluten-Free Oat Brands in the US

1. Bob’s Red Mill (US) – A leading gluten-free brand offering a full range of oat products: Old-Fashioned Rolled Oats, Quick Oats, Steel-Cut Oats, and even oat flour – all processed in a dedicated facility. Bob’s Red Mill oats are batch-tested to be under 20ppm gluten and many are Certified Gluten-Free (GFCO) (look for the “GF” badge on the package)​. For example, their Organic Rolled Oats are labeled gluten-free and are a staple for safe oatmeal cookies or breakfast porridge.
2. GF Harvest (US) – Family-owned in Wyoming, GF Harvest (a.k.a. Gluten Free Oats, LLC) grows “Purity Protocol” oats. They sell Certified Organic Gluten-Free Rolled Oats and quick oats that are certified gluten-free and often test well below 10ppm. GF Harvest’s process (from dedicated gluten-free fields to a GFCO-certified facility) ensures these oats are trusted by many coeliacs. They also offer oat flour and oatmeal cups.
3. Quaker Oats – Select Starts Gluten Free (US) – Quaker, America’s oatmeal icon, has a line of gluten-free oatmeal. They use “expert milling techniques” to sort out any stray grains so that specially-marked Quaker Oats meet FDA’s <20ppm standard. Options include Gluten Free Quick 1-Minute Oats (rolled oats) and Gluten Free Instant Oatmeal packets (Original and Maple Brown Sugar flavors). These are widely available in grocery stores – just look for the “Gluten Free” label on the Quaker box.
4. Nature’s Path Organic (Canada/US) – Nature’s Path produces organic, non-GMO, gluten-free oats. Their Gluten Free Old Fashioned Rolled Oats (sold in canisters) are made from purity protocol oats (often from Canada) and are labeled gluten-free. Nature’s Path also makes Gluten-Free Instant Oatmeal packs and granolas using certified gluten-free oats. (For example, their canister of old-fashioned oatmeal is certified organic and marked gluten-free, providing 18 oz of whole rolled oats.)
5. Bakery On Main (US) – A dedicated gluten-free company, Bakery On Main offers premium oats such as Gluten-Free Whole Grain Rolled Oats (available in bags and bulk). Their oats are processed in a dedicated gluten-free facility and carry multiple certifications (GFCO, Non-GMO, etc.). They also produce instant oatmeal varieties. These oats have a nutty flavor and are tested to ensure <10ppm gluten, giving “peace of mind while you enjoy our oats for breakfast or baking”.
6. Glutenfreeda (US) – Glutenfreeda Foods specializes in instant oatmeals. They use certified gluten-free oats in all their products. For instance, their instant oatmeal cups and packets (flavors like Maple Raisin, Apple Cinnamon) are made with oats that are <5ppm gluten and processed in a 100% dedicated GF facility​. The packaging proudly displays “Glutenfreeda certified” meaning the oats are tested to be extremely pure. They also offer gluten-free steel-cut oats and oat flour. These products are a convenient, safe choice – “America’s #1 selling gluten-free instant oatmeal”.
7. Gluten Free Prairie (US) – Based in Montana, Gluten Free Prairie produces 100% Purity Protocol Oats. Their lineup includes Whole Rolled Oats, Quick Oats, Oat Flour, and even an oatmeal cookie mix. All products are third-party certified gluten-free and made with oats grown in dedicated gluten-free fields. Gluten Free Prairie’s oats are known for being glyphosate-free and higher protein. They emphasize that they use only purity protocol oats – a reassurance for celiac customers.
8. Montana Gluten Free (US) – Another Montana-based producer using a special variety of hulless oats (branded as “PrOatina”). Montana Gluten Free Processors offer Raw Oat Groats, Rolled Oats, and Oat Bran – all grown on isolated fields. Their Raw Rolled Oats are naturally sweeter and ship fresh. While not a household name nationally, they are highly regarded in the celiac community. All products are certified gluten-free (under 10ppm, some under 5ppm) and processed in their dedicated facility. They also boast higher protein than typical oats.
9. Happy Day Brands (US) – Happy Day offers Certified Gluten-Free Rolled Oats in bulk (20 lb bags for food service or big families). Their oats are certified by GFCO and tested to <10ppm​. Happy Day works directly with farming partners to source high-quality whole grain oats. These old-fashioned rolled oats are perfect for oatmeal, baking, or making granola. (Happy Day Brands also operates on a “Buy One, Give One” charity model, donating meals for each product sold.)
10. Arrowhead Mills (US) – A well-known organic grain brand, Arrowhead Mills produces Gluten Free Steel Cut Oats (24 oz bag) as well as an organic oat flour mix. Their steel-cut oats are certified gluten-free and USDA organic. They are often stocked at Whole Foods and natural grocers. Arrowhead’s oats are hearty, whole-grain oats chopped into pieces, and the gluten-free certification is noted on the package, ensuring they meet the needs of celiac customers.
11. One Degree Organic Foods (Canada/US) – This brand uses sprouted oats for improved nutrition. One Degree’s Sprouted Rolled Oats are certified gluten-free (Beyond Celiac) and sourced via transparency from farmers. They ensure the oats are processed without exposure to any gluten grains. One Degree’s rolled oats (available in 5 lb bulk bags) and Sprouted Quick Oats are popular at Costco and health stores. They are also certified organic, non-GMO, and tested to be glyphosate-free – a very clean option for the gluten-free diet.
12. King Arthur Baking Company (US) – Known for flours, King Arthur also sells Gluten-Free Whole Grain Rolled Oats (2.5 lb bag). These oats are from hull-less “naked” oats with extra protein. They are Certified Gluten-Free by GFCO and tested to the strict 10ppm standard. King Arthur’s oats are sustainably grown and provide 11g protein per serving, making them unique. They cook up into a creamy oatmeal and can be used in King Arthur’s gluten-free baking recipes.
13. Cream Hill Estates – Lara’s Oats (Canada/US) – Cream Hill Estates (based in Montreal) pioneered purity protocol oats in North America. Under the “Lara’s” brand, they sell gluten-free rolled oats, quick oats, and oat flour. Cream Hill’s oats are grown in pure fields and processed in a dedicated facility; they are certified by GFCO and consistently test <5–10ppm. They were “the first company in North America to produce gluten-free oats for the commercial market”, selling under the Lara’s label. These oats are available via mail order and specialty shops, often used by gluten-free bakeries.
14. Avena Foods – Only Oats (Canada/US) – Avena Foods supplies purity protocol oats to many brands, and also sells consumer oats under Only Oats. Only Oats Rolled Oats (sold in 1 kg bags in North America) are made from oats grown in fields without wheat/rye/barley and tested <5ppm. Gluten Free Watchdog notes Only Oats as a source of certified gluten-free oats. Only Oats offers rolled, quick, and steel-cut oats – all labeled gluten-free and often available online. (They are popular in Canada and sometimes found in U.S. gluten-free stores or Amazon.)
15. Purely Elizabeth (US) – A natural foods brand, Purely Elizabeth makes superfood oatmeal cups and pouches. They use organic certified gluten-free oats blended with ancient grains and seeds. For example, the Original Superfood Oatmeal contains organic gluten-free oats, quinoa, flax, chia, and amaranth. All Purely Elizabeth oat products are clearly marked gluten-free (the oats are tested and confirmed safe). They offer flavors like Blueberry Walnut and Vanilla Pecan oatmeal – a gourmet twist on instant oats that is celiac-safe.
16. Thrive Market Goods (US) – The online retailer Thrive Market has an in-house brand offering Organic Rolled Oats (Gluten-Free). Thrive Market’s oats are Certified Gluten-Free and come in resealable pouches. They are old-fashioned rolled oats with a hearty chew. Thrive also sells a quick oats version and instant oatmeal mixes under their label. These oats are a convenient option for members, providing affordable gluten-free staples delivered to your door.
17. Great Value (Walmart) (US) – Walmart’s Great Value label includes Gluten-Free Quick Oats (18 oz). These oats are certified gluten-free by the Beyond Celiac program​, making them an accessible and budget-friendly choice. The quick oats cook fast (ready in 1 minute) and come with the gluten-free certification seal on the package. (Note: Walmart’s regular oats are not GF, but the specifically labeled “Gluten Free” Quick Oats or Instant Oats are safe. Always look for the GF badge on the box.)
18. McCann’s Irish Oatmeal – Gluten-Free Steel Cut (IE/US) – McCann’s, famous for steel-cut Irish oats, offers a Gluten-Free Steel Cut Irish Oatmeal in the U.S. This product is made from oats grown in Ireland under controlled conditions and packaged in a dedicated facility to eliminate cross-contact. It is labeled gluten-free (McCann’s first introduced it around 2015). Many celiacs appreciate having authentic steel-cut oats that are safe – one reviewer even noted they chose McCann’s because “it was the only 100% gluten-free oatmeal” they could find. The hearty, chewy texture of McCann’s steel-cut oats is retained, minus the gluten.
19. Anthony’s Goods (US) – Anthony’s is an online-focused brand known for quality bulk ingredients. They sell Organic Gluten-Free Rolled Oats (3 lb bags) and Steel Cut Oats, which are batch-tested and verified gluten-free. Anthony’s oats are also non-GMO and often noted as low-FODMAP. These are plain whole grain oats you can trust – the packaging highlights the gluten-free status, making them popular on Amazon for those seeking certified oats in larger quantities.
20. NOW Real Food (US) – NOW Foods offers pantry staples, including Organic Rolled Oats and Organic Steel Cut Oats that are gluten-free. Their 24 oz rolled oats are certified organic, non-GMO, and labeled gluten-free on NOW’s site. NOW emphasizes testing and quality; their oats provide 2g of soluble fiber per serving and are great for heart-healthy breakfasts. They come in resealable pouches and provide a reliable gluten-free option from a trusted natural food supplement company.
21. Modern Oats (US) – Modern Oats is a brand of gourmet single-serve oatmeal cups. All Modern Oats products are made with “gluten-free certified, small farm whole rolled oats”. They offer flavors like Goji Blueberry, Apple Walnut, and Chocolate Cherry – all in convenient cups that just need hot water. The oats and mix-ins are certified gluten-free, vegan, and non-GMO. For those on-the-go, Modern Oats provides a quick breakfast that’s safe for coeliacs (each cup is clearly marked gluten-free, and the variety packs note the GF certification).
22. Gerbs Allergy-Friendly Foods (US) – Gerbs specializes in allergen-free products and sells Gluten-Free Rolled Oats (Old-Fashioned) that are also free from the top 14 allergens. Gerbs’ oats are processed in an allergen-safe facility and tested gluten-free. They offer traditional rolled oats in resealable bags (14 oz and larger), which they describe as “one of our more popular allergy-friendly products”. These oats are great for those who need not only gluten-free but also peanut/nut-free oats. Gerbs also carries gluten-free instant oats and oat flour, all clearly labeled.
23. Trader Joe’s (US) – Trader Joe’s sells Gluten Free Rolled Oats (often in a 32 oz bag). These oats are sourced from purity protocol growers: the label notes they are “grown in dedicated oat fields and packaged in a gluten free facility.”. Trader Joe’s GF oats are whole rolled oats (not quick oats), with a good, sturdy texture. They’re a favorite due to price and quality, though it’s wise to double-check for the “Gluten Free” print on the bag to ensure you have the certified batch. TJ’s also has a Gluten Free Organic Oats & Ancient Grains hot cereal blend for variety.
24. Terrasoul Superfoods (US) – Terrasoul offers Organic Rolled Oats in bulk 2.5 lb pouches that are batch-tested gluten-free. In fact, Terrasoul’s oats are certified organic and each batch is tested to confirm gluten-free status​. They advertise their oats as “Delicious and fresh… gluten-free rolled oats”, and even note they are tested glyphosate-free​. These make an excellent choice for the health-conscious consumer. You can find them online (Amazon, etc.), often noted for being very clean oats with no bitterness.
25. ZEGO Foods (US) – ZEGO specializes in ultra-pure products and their Double Protein Oats are a unique offering. ZEGO’s raw rolled oats are a new variety of hull-less oats with twice the protein of standard oats, and they are grown via purity protocol and certified gluten-free​. They are also batch-tested to be free of glyphosate and even heavy metals, with results available via QR code. ZEGO’s Organic Oats come in 14 oz bags – a bit more expensive, but prized by those who want the cleanest possible gluten-free oats. They can be eaten raw, soaked, or cooked. (ZEGO also makes gluten-free oatmeal blends and muesli, all certified GF.)

Each of these brands provides clearly labeled, certified gluten-free oats – whether rolled, steel-cut, quick-cooking, or oat flour – so individuals with coeliac disease or gluten sensitivity can enjoy oats in their diet safely. Always look for the gluten-free certification or logo on the package, and you’ll be able to confidently choose any of the above brands for your porridge, baking, and breakfast needs.

Comparison Table: Certified Gluten-Free Oat Brands UK vs US

Final Thoughts: Certified Gluten-Free Oat Brands

Whether you’re a coeliac seeking absolute purity or simply aiming to avoid gluten contamination, these 50 certified brands offer peace of mind without compromising on taste or quality. From jumbo oats and instant sachets to oat flour and baking blends, there’s something for every breakfast table.

Stick to certified gluten-free labels, check batch information where needed, and enjoy your porridge, bakes, and oat bars with confidence. Here’s to many safe and satisfying oat-filled mornings ahead!