The GAPS Food Swap Guide

A GAPS food swap only works if it replaces the thing you took out with something the diet actually allows, in the amount and preparation the diet actually calls for. Swap wheat flour for the wrong nut flour ratio and your bread falls apart. Swap sugar for maple syrup because it “sounds natural” and you haven’t swapped anything, you’ve just moved the problem. This guide walks through the real substitutes, straight from the GAPS diet’s own allowed and avoid lists, for the ingredients people get stuck on most: flour, sugar, dairy, beans, starchy sides, and thickeners.

This guide focuses on the replacement, not just the ingredient you are leaving out. My GAPS food list gives the broader food overview.

Why the Swap Matters More Than the Removal

A useful swap replaces an excluded ingredient with a food the current GAPS stage actually allows. Plan the replacement before removing a staple so meals still have a workable structure.

That’s the real function of a swap guide. GAPS draws a hard line around grains, sugar, most starchy vegetables, and most beans^[1]. Removing those foods without a plan for what replaces them is how people end up hungry, discouraged, or quietly reintroducing something that isn’t actually legal on the diet. A real swap has a source, a ratio, and a stage. Here’s what that looks like for the ingredients that trip people up most.

Flour and Baking Swaps

Wheat, rice, oat, and every other grain flour is off the table on GAPS, along with anything made from them. The replacement is nut or seed flour, and it isn’t a 1-for-1 texture match, it’s its own thing with its own timing.

Nut and seed flours behave differently from grain flour. The Stage 3 pancake route uses fresh squash, eggs and nut butter; it is not permission for every nut-flour baked food. The Stage 4 bread route uses fermented nut- or seed-flour, with its other ingredients introduced appropriately. Use a complete recipe for the stage and preparation you have reached.^[18]

Properly prepared, cooked and mashed white navy beans are a real baking alternative described for nut allergy.^[4][18] They must already be appropriate to the person’s digestion and tolerance. The book describes soaking, fermentation and cooking before the beans are mashed. Use a recipe designed for that preparation instead of assuming that every nut-flour formula works with the same volume of mashed beans.

Sugar and Sweetener Swaps

Maple syrup, maple sugar, coconut sugar and xylitol are not GAPS replacements for sugar. Honey is the usual allowed sweetener in the relevant food and stage context. Older advice allowing stevia has been withdrawn in the updated GAPS FAQ; it is no longer an allowed alternative.^[19] Check added sweeteners as actual ingredients, rather than treating the natural sugars within allowed honey or fruit as a separate prohibited ingredient.

Use raw, untreated honey where the complete recipe calls for it. The GAPS sources often prefer dried fruit in baking, and some of their baking recipes use honey.^[7][18] Honey is not for babies younger than 12 months.^[20]

Dairy and Milk Swaps

We prepare yogurt, kefir, ghee, and sour cream in weekly batches. That routine follows the cultured-dairy preparations used in our household; each person still needs to follow the applicable GAPS dairy-introduction guidance.

Dairy has its own introduction sequence and individual exceptions. A homemade nut or coconut milk can be a Full GAPS recipe alternative after Intro when those ingredients are appropriate, but it will not behave exactly like cultured dairy in every dish. For cooking fat, use an animal fat, ghee or other fat already introduced and suitable to your plan. My Full GAPS guide explains the broader dairy and food context.^[18]

Bean and Legume Swaps

The ordinary GAPS list includes properly prepared white navy or haricot beans, lima beans, lentils and split peas; peanuts are also legumes. String and green beans are treated as vegetables. The newer book says to wait until diarrhea and other digestive symptoms have cleared before trying dried legumes, and some people need much longer.^[18] Being on Full GAPS is not, by itself, proof that a bean dish is ready for that person.

Dried beans, lentils and peas need the preparation described for the recipe, beginning with soaking and rinsing. Fermentation or sprouting may be part of that method; sprouting requires its own draining and rinsing, rather than leaving seeds continuously submerged.^[13][18] The 2020 book also gives a separate double-fermentation preparation that permits a broader mixture of legumes. That is a specific method after digestive readiness, not permission to soak any bean once and call it ready. Some people still cannot tolerate legumes after preparation.^[18]

Grain, Rice, and Potato Swaps

Rice, pasta, and potatoes are all excluded, along with sweet potatoes, yams, and parsnips^[14]. The honest answer here is that GAPS doesn’t hand you a starch-for-starch replacement, because the whole point of the protocol is fewer starchy fillers, not a like-for-like swap. What it does hand you is a lot of legal vegetables that can carry the same role on the plate.

Cauliflower is the clearest example. Cooked until tender and pureed with butter or homemade yogurt, it stands in for mashed potatoes on the side of a roast or a stew^[15]. Winter squash works the same way under a sauce or alongside meat. Neither one is trying to fool anyone into thinking it’s rice or potatoes. It’s just what’s actually allowed, doing the job a starch used to do.

Thickener Swaps

This is the swap most people get wrong, because the usual grain-free thickeners, arrowroot, cornstarch, potato starch, aren’t actually GAPS-legal. All three are on the avoid list along with starch generally^[14], which rules out most of what a typical paleo recipe reaches for.

Reduction can give a stock or sauce more body by concentrating it.^[16] Gelatin is useful in recipes designed to set after chilling; it is not automatically a flour-like thickener for every hot gravy. Kelp and other seaweed can add texture in appropriate Full GAPS dishes after Intro. Agar-agar and carrageenan are excluded, so “seaweed-based” alone does not settle the ingredient.^[17] Choose the thickening method the finished dish needs, with ingredients already appropriate to your stage.

Kitchen and Storage Swaps

Replace food-contact equipment gradually as the budget allows, beginning with the pieces used most often.

For everyday food contact, I favor the stainless steel, cast iron, enameled cast iron, glass, ceramic and wood options used in the GAPS kitchen guidance. Replace the items you use most as money allows. The book also describes particular frozen-food uses involving plastic. For everyday storage, glass containers are a practical place to start when replacing items in your own kitchen. My kitchen equipment guide covers practical choices.

FAQ: GAPS Food Swaps

Is Maple Syrup Allowed as a Sugar Substitute on GAPS?

No. Maple syrup, maple sugar, coconut sugar and xylitol are excluded. Use honey only in the relevant stage and recipe context. The updated GAPS FAQ also no longer allows stevia.^[19]

Can I Use Arrowroot or Cornstarch to Thicken a GAPS Sauce?

No. Arrowroot, cornstarch and potato starch are excluded.^[14] Choose reduction, a gelatin-set preparation or, after Intro where suitable, a seaweed-based approach that does not use excluded agar or carrageenan. They give different textures rather than acting as identical substitutes.^[16][17]

What Replaces Rice or Pasta on GAPS?

There isn’t a direct starch-for-starch swap, since GAPS is built around fewer starchy fillers. Pureed cauliflower stands in for potatoes or rice as a side, and winter squash works well under a sauce in place of pasta^[15].

Do I Have to Give up Beans Entirely on GAPS?

No. The ordinary permitted dried-legume list is narrower than the foods discussed in the book’s separate double-fermentation method. Digestive symptoms need to have cleared, and proper preparation and individual tolerance still matter. Fresh green-bean pods are a vegetable, not a dried seed requiring the same soaking process.^[18]

What Can I Bake with if We Can’t Tolerate Nuts?

Prepared, cooked and mashed white navy beans are a real option described for nut allergy, once legumes are appropriate and tolerated.^[4][18] Choose a complete bean-based recipe rather than assuming a universal one-for-one replacement for ground nuts.

Choose one ingredient you use often and a complete recipe that uses the GAPS replacement you need. A substitution must also fit your particular dietary variation; a plant-based alternative is not a No-Plant GAPS food. My GAPS dietary approaches guide explains those differences. My GAPS Food Swap Guide and its GAPS Food Swap: Fridge Version companion are listed in the WFLI Shop.

References

1. Full GAPS Diet: Recommended Food List and Foods to Avoid List, GAPS Diet / International Nutrition.
2. Selene River Press. The Complete Cooking Techniques for the GAPS Diet, 2nd ed., p. 185.
3. Selene River Press. The Complete Cooking Techniques for the GAPS Diet, 2nd ed., p. 203.
4. Natasha Campbell-McBride. Gut and Psychology Syndrome, prepared white navy beans as a nut-allergy baking alternative.
5. Selene River Press. The Complete Cooking Techniques for the GAPS Diet, 2nd ed., p. 200.
6. Monica Corrado. The Complete Cooking Techniques for the GAPS Diet, older sweetener discussion. The later GAPS FAQ revision on stevia controls current advice; see reference 19.
7. Natasha Campbell-McBride. GAPS FAQs, Honey, raw honey and baking context.
8. Campbell-McBride, N. Gut and Psychology Syndrome (2013 expanded ed.), p. 167.
9. Campbell-McBride, N. Gut and Psychology Syndrome (2004 ed.), p. 157.
10. GAPS Introduction Diet Survival Guide, “Quick Facts” panel, GAPS Diet / International Nutrition.
11. Selene River Press. The Complete Cooking Techniques for the GAPS Diet, 2nd ed., p. 28.
12. Selene River Press. The Complete Cooking Techniques for the GAPS Diet, 2nd ed., pp. 187-188.
13. Sandor Ellix Katz. The Art of Fermentation, “Sprouting,” soaking followed by drainage, rinsing and air exposure.
14. Full GAPS Diet: Recommended Food List and Foods to Avoid List, GAPS Diet / International Nutrition.
15. Campbell-McBride, N. Gut and Psychology Syndrome (2004 ed.), p. 146.
16. Rachael Mamane. Mastering Stocks and Broths, reduction, gelatin and body in stocks and sauces.
17. GAPS Diet / International Nutrition. Full GAPS Recommended Food List and Foods to Avoid, seaweed after Intro, agar-agar and carrageenan.
18. Natasha Campbell-McBride. Gut and Physiology Syndrome (2020), Intro Stages 3–4, Full GAPS, digestive readiness for legumes, “Fermented Legumes,” and “Bread and Baking.”
19. Natasha Campbell-McBride. GAPS FAQs, food questions 69 and 93, withdrawal of the earlier stevia allowance.
20. Centers for Disease Control and Prevention. Foods and Drinks to Avoid or Limit, honey before 12 months.