Whole30 Dietary Guide: Added Sugars, Seed Oils, Carrageenan, and What the Program Bans on Labels

Whole30 is a 30-day structured elimination protocol developed in 2009 by sports nutritionist Melissa Hartwig Urban and her then-husband Dallas Hartwig. Its foundational premise is that certain food groups, specifically added sugars, alcohol, grains, legumes, dairy products, and specific food additives, may disrupt hormonal regulation, digestive function, and immune response in ways that are subtle and cumulative rather than acute. By removing all of these groups completely for 30 days and then reintroducing them one at a time, participants are meant to identify which foods personally affect how they feel.

The protocol draws on concepts from elimination diet research, which has a longer clinical history in the context of food intolerance identification. Published studies on elimination diets have demonstrated their utility in identifying gastrointestinal triggers and inflammatory responses, though the specific Whole30 food groupings reflect a particular philosophical interpretation of that evidence rather than a direct clinical recommendation. The program explicitly positions itself as a lifestyle reset rather than a weight-loss diet, though body composition changes are a commonly reported outcome.

Unlike many popular eating frameworks, Whole30 sets no calorie targets and no serving-size limits for compliant foods. The rules are binary: an ingredient is either compliant or it disqualifies the entire product. A single non-compliant ingredient in an otherwise clean food makes that food off-limits, which is why label reading becomes so demanding.

The official Whole30 rules identify six major categories of banned foods. Each category contains numerous sub-items that appear on labels under names that are not always obvious.

Added sugars and sweeteners form the broadest and most linguistically complex category. Any ingredient that adds sweetness to a product, whether derived from cane, beet, fruit, grain, or manufactured synthetically, is prohibited. This includes every form of conventional sugar but also "natural" alternatives that health-conscious consumers often consider acceptable. Honey, maple syrup, agave nectar, and coconut sugar are all banned. Dates and dried fruits used as sweeteners in energy bars and sauces are banned. Stevia, monk fruit extract, and all artificial sweeteners including aspartame, sucralose, acesulfame potassium, and saccharin are banned, even though they contribute no calories. The program's reasoning is that all sweeteners, regardless of source or caloric content, perpetuate the psychological reliance on sweet taste.

Alcohol in all forms is prohibited, including wine used in cooking, beer-battered products, and spirits used as flavor agents. Vanilla extract is a point of confusion: the standard form is made with alcohol and is non-compliant, while vanilla bean powder and alcohol-free vanilla flavoring are compliant alternatives.

Grains cover every product derived from cereal crops. Wheat in all its forms is banned: whole wheat, white flour, semolina, spelt, farro, durum, and kamut. Rice is banned, as are oats, corn, barley, rye, millet, amaranth, buckwheat, and quinoa. Corn deserves special attention because it appears in forms that do not read as "corn" on labels, including corn starch, corn syrup solids, modified corn starch, dextrin derived from corn, and maltodextrin when corn-sourced. Gluten-free grains do not receive any exemption on Whole30.

Legumes include everything from the obvious to the unexpected. Peanuts are a legume, not a nut, and peanut butter, peanut oil, and peanut flour are all banned. Soy is a legume and banned in every form: edamame, tofu, tempeh, miso, soy sauce, tamari, soybean oil, and soy lecithin. Other banned legumes include chickpeas, lentils, black beans, kidney beans, cannellini beans, pinto beans, navy beans, white beans, adzuki beans, peas (including snap peas and sugar snap peas), and hummus. Green beans and snow peas are specifically exempted by the official rules, as are pea protein in some interpretations, though this remains a point of community debate.

Dairy covers all products derived from the milk of mammals. Cow's milk, goat's milk, and sheep's milk products are all banned. This includes butter, ghee (which was previously banned but is now explicitly permitted as of recent rule updates), cream, cream cheese, sour cream, yogurt, kefir, cheese, whey protein, casein, lactose, and milk-derived ingredients that appear in processed foods. Note that clarified butter and ghee are now Whole30-compliant, a reversal from the program's earlier rules.

Specific additives form the sixth category. Carrageenan is banned regardless of the amount present. Monosodium glutamate (MSG) is banned. Sulfites added as preservatives are banned. These three additives appear in hundreds of packaged foods, often in quantities so small that manufacturers may consider them negligible, but Whole30 treats any amount as disqualifying.

The difficulty with Whole30 is not understanding the six banned categories. The difficulty is recognizing them under their many disguised names in ingredient lists.

Added sugars have the most aliases of any banned category. The following terms all indicate added sugar and disqualify a Whole30 product: cane sugar, raw cane sugar, cane juice, evaporated cane juice, cane juice crystals, invert sugar, turbinado sugar, muscovado sugar, beet sugar, brown sugar, powdered sugar, confectioners' sugar, dextrose, fructose, glucose, sucrose, lactose (when added), maltose, galactose, high-fructose corn syrup, corn syrup, corn syrup solids, rice syrup, brown rice syrup, barley malt syrup, malt syrup, sorghum syrup, golden syrup, treacle, molasses, honey, maple syrup, agave, agave nectar, coconut sugar, coconut nectar, palm sugar, date sugar, date syrup, fruit juice concentrate, apple juice concentrate, grape juice concentrate, and any other "X juice concentrate." Stevia, erythritol, xylitol, sorbitol, and all other sugar alcohols are also banned. Monk fruit sweetener is banned.

A specific trap for Whole30 participants is the clean-label energy bar and snack market. Many products marketed as "paleo" or "natural" use dates, figs, raisins, or other dried fruits as binding agents, and the manufacturers frequently describe these as "naturally sweetened." On Whole30, using any sweetener, including whole dried fruit used primarily for sweetness, is not permitted. Larabars and similar date-based bars are non-compliant for this reason.

Seed oils and refined vegetable oils must be avoided, though the reasoning here is about the category of oil rather than a specific additive. Canola oil (also labeled as rapeseed oil in European products), sunflower oil, safflower oil, soybean oil, corn oil, cottonseed oil, grapeseed oil, and rice bran oil are all banned. These oils appear where they are least expected. Most commercial mayonnaise is made with soybean or canola oil. Canned fish packed in vegetable oil typically uses soybean oil. Deli turkey and roasted chicken products often contain sunflower oil as a moisture agent. Salad dressings almost universally use canola or soybean oil. Cooking sprays use canola or soybean oil. The compliant oils on Whole30 are olive oil, avocado oil, coconut oil, lard, tallow, duck fat, and other animal fats.

Carrageenan is a seaweed-derived thickening agent with a wide presence in plant-based products. In coconut milk, carrageenan prevents fat separation and creates a creamier texture, so conventional brands including several major supermarket labels add it. The same applies to almond milk, oat milk, cashew milk, hemp milk, and other nut and seed milks. Deli meats are another source: carrageenan is injected into some deli turkey, ham, and chicken products to improve moisture retention and sliceability. It also appears in some ready-to-drink protein shakes, nutritional supplements, and infant formula. When reading coconut milk labels, the only compliant options are those listing coconut and water, with nothing else.

Soy lecithin is a byproduct of soybean processing used as an emulsifier in an enormous range of packaged foods. Chocolate bars and chocolate chips almost universally contain soy lecithin. It appears in many nut butters to prevent oil separation, in salad dressings, in protein powders, in commercial ghee products, and in baking mixes. Sunflower lecithin is the compliant alternative and is increasingly common in products targeting clean-label consumers.

MSG and related glutamates appear under multiple names. Yeast extract is one of the most common, appearing in Worcestershire sauce, bouillon cubes, most canned soups, many savory snacks, and some condiments. Autolyzed yeast is a synonym for yeast extract. Hydrolyzed vegetable protein, hydrolyzed soy protein, and hydrolyzed corn protein contain free glutamates that the program treats as equivalent to MSG. Disodium guanylate and disodium inosinate are flavor enhancers that work synergistically with glutamates and are banned.

Sulfites appear as sodium sulfite, sodium bisulfite, sodium metabisulfite, potassium bisulfite, potassium metabisulfite, and sulfur dioxide. They are used as preservatives in dried fruit, wine, some deli meats, pickled products, bottled lemon juice, and some packaged salads. Dried apricots with their natural orange color typically contain sulfites; unsulfured dried apricots are brown and compliant.

Alcohol derivatives beyond obvious beverages include vanilla extract (which is alcohol-based), some vinegars (apple cider vinegar is compliant, but some flavored vinegars use alcohol), and cooking wines including "non-alcoholic" cooking wines which still contain fermented grain derivatives. Coconut aminos is the standard compliant alternative to soy sauce, but even coconut aminos should be checked for added sugar.

Grain derivatives hide behind unfamiliar names. Maltodextrin, while sometimes corn-derived, is primarily produced from grain starch and is banned regardless of source. Dextrin is similarly derived. Modified food starch without a specified source is presumed to contain gluten-containing grain starch. Caramel color in some formulations is derived from barley. Malt vinegar is barley-based and non-compliant. Brewer's yeast is a grain-adjacent fermentation byproduct and is banned.

Labeling rules differ significantly between the United States and the European Union, and these differences affect how Whole30 participants interpret ingredient lists on both sides of the Atlantic.

In the United States, the FDA requires that added sugars be listed separately on the Nutrition Facts panel as of the 2016 label revisions. This makes identifying total added sugar content straightforward numerically, though it does not clarify which specific ingredient in the list is the sugar source. The ingredient list itself must name each ingredient individually, so "cane sugar" and "brown rice syrup" must appear as separate entries rather than being grouped under a generic "sweeteners" label.

In the EU, sugars are not broken out as a separate line item on the nutrition declaration in the same way. The EU nutrition label shows total sugars as part of carbohydrates, without distinguishing between naturally occurring and added sugars. This makes EU-purchased products harder to assess at a glance from a Whole30 perspective. However, EU regulations on allergen labeling are more stringent in some respects: the 14 major allergens, including cereals containing gluten, soya, milk, and sulphur dioxide and sulphites above 10 mg/kg, must be emphasized (typically bolded) within the ingredient list. This makes identifying grain-based and soy ingredients faster for EU shoppers.

Seed oil labeling also differs. In the EU, "vegetable oil" without specification was once common, but current regulations increasingly require that the specific plant source be named. In the US, "vegetable oil" as a generic term is still legally permissible in some contexts, which means a US label listing "vegetable oil" requires additional investigation. The manufacturer's customer service line or website often provides the specific source.

Carrageenan is approved as a food additive in both the US (under 21 CFR 172.620) and the EU (as E407). Neither jurisdiction restricts its use in conventional food products, so its presence must be identified entirely by reading the ingredient list rather than by regulatory restriction.

Regarding MSG, US labeling requires that monosodium glutamate be listed by name when added directly, but glutamate-containing ingredients like yeast extract can appear without triggering the MSG declaration. EU labeling follows similar principles.

Alcohol in vanilla extract is a US-specific presentation. EU vanilla extracts follow similar alcohol-based extraction methods but are regulated under different food preparation standards. In both regions, the compliant alternative is vanilla bean powder or vanilla flavoring specified as alcohol-free.

Strictly Avoid

Any product containing the following ingredients is immediately non-compliant and should be returned to the shelf: any form of sugar (cane, beet, coconut, date, palm, raw, brown, powdered), any syrup (corn syrup, brown rice syrup, maple syrup, agave, golden syrup, malt syrup), honey, molasses, any juice concentrate, any artificial sweetener (aspartame, sucralose, acesulfame potassium, saccharin), any sugar alcohol (erythritol, xylitol, sorbitol, mannitol), stevia, monk fruit, any grain or grain derivative (wheat, flour, semolina, oats, corn, cornstarch, maltodextrin, dextrin, modified starch without a compliant source specification, barley, malt), any legume (soy, peanut, chickpea, lentil, black bean, kidney bean, pea, edamame, miso, tofu), any dairy ingredient (milk, cream, butter, cheese, whey, casein, lactose, yogurt), canola oil, soybean oil, sunflower oil, safflower oil, corn oil, cottonseed oil, grapeseed oil, carrageenan, MSG, yeast extract, autolyzed yeast, hydrolyzed protein, sulfites in any form, any alcohol-based flavoring, "vegetable oil" without a named source, malt vinegar, deli meats when the full ingredient list is unavailable (routinely contain carrageenan, dextrose, and nitrite curing agents), broth or stock as an ingredient context flag (almost always contains yeast extract or sugar), and coconut milk or nut milks when the full ingredient list is unavailable.

Generally Safe

Whole, unprocessed foods are universally compliant: fresh meat, poultry, and seafood without marinades or seasoning packets; eggs; fresh vegetables including root vegetables; fresh and frozen fruit without added sugar; avocados; olives packed in water or compliant oil; olive oil; avocado oil; coconut oil; coconut milk without carrageenan or added sugar; plain nut milks without carrageenan, added sugars, or grain-derived thickeners; fresh herbs; plain salt; black pepper; pure spices without anti-caking agents; "spices" listed without further specification (single-ingredient pure spices are compliant); "natural flavors" (compliant in most cases); plain nuts and seeds (except peanuts); plain nut butters without soy lecithin, added sugar, or seed oils; almond flour and coconut flour; cassava flour; arrowroot starch; apple cider vinegar; coconut aminos without added sugar; canned tomatoes without added sugar; and ghee or clarified butter.

Ignore on Labels

Several label claims are irrelevant to Whole30 compliance and should be treated as marketing rather than compliance signals: "natural," "organic," "non-GMO," "gluten-free" (gluten-free products often contain corn, rice, and other banned grains), "dairy-free" (dairy-free products often contain carrageenan, soy, and added sugars), "vegan," "plant-based," "keto-friendly," "paleo-friendly" (unofficial paleo claims do not match Whole30 rules), "no artificial colors," "no preservatives," and "lightly sweetened."

The sheer volume of non-compliant ingredients hiding under unfamiliar names makes manual label reading at the grocery store both time-consuming and error-prone. IngrediCheck was built specifically for this kind of scanning task: point the camera at an ingredient list, and the app flags non-compliant ingredients against the user's dietary profile, including every sugar alias, every banned oil, and every additive covered in this guide. For those who follow Paleo principles alongside Whole30 or are exploring AIP as a next step after completing the 30 days, IngrediCheck supports multiple dietary profiles simultaneously, so a single scan can check compliance across all active restrictions at once.

• Paleo Dietary Guide
• AIP Dietary Guide
• Anti-Inflammatory Dietary Guide