Remove all high-FODMAP foods completely. This is a diagnostic phase — not a permanent diet. Significant symptom improvement confirms that FODMAPs are a major driver.
Target: At least 4 weeks of strict elimination before evaluating. Six weeks gives a cleaner read if the first two weeks are rocky.
Daily Log
Morning: Any residual bloating from yesterday?
After lunch: Bloating? Scale 1–5.
After dinner: Bloating? Scale 1–5.
Notable deviations: Any high-FODMAP foods eaten — restaurant meals, unexpected ingredients, etc.
Your Specific Adjustments
Weekday
Switch from wheat-based whole grains to oats, quinoa, or brown rice. Brown rice is low-FODMAP — keep to ⅓ cup dry / 1 cup cooked max.
Tofu is fine. Home-cooked beans must come out during Phase 1 — this directly tests whether even well-prepared beans are an issue for you.
Kefir smoothie is fine as-is. Keep banana unripe and firm; stay at 6–8 berries.
Weekend & Restaurants
Restaurants: The biggest FODMAP landmines are onion and garlic (in almost everything), wheat (sauces, breading, pasta), and large bean servings. Safest choices: lean grilled protein, salads without croutons, rice dishes.
Rich/heavy foods: These can trigger symptoms through fat content and volume — mechanisms separate from FODMAPs. Keep portions moderate during Phase 1 to isolate the FODMAP variable.
Bedtime Snack
Chips, crackers, and cookies are frequently wheat-based and may contain onion/garlic powder or chicory root — especially products marketed as “healthy.” Check every label.
Safe options: rice cakes, plain corn tortilla chips (no onion/garlic seasoning), hard cheese, small handful of grapes.
Dark chocolate: low-FODMAP in small amounts (1–2 squares). Fine to keep.
Phase 2: Reintroduction
Once symptoms have improved and stayed stable for at least 2 consecutive weeks, begin testing FODMAP subgroups one at a time.
Protocol: Test one subgroup over 3 days — small serving day 1, medium day 2, large day 3. Wait 2–3 days on strict low-FODMAP before the next test. If you react, return to strict elimination until clear, then continue.
Likely Culprits — Highest to Lowest
GOS — beans, lentils, chickpeas. Strongest candidate given bean-based pasta as your most consistent trigger.
Fructans — wheat, garlic, onion. Ubiquitous in processed and restaurant food; likely contributing to your weekend pattern.
Polyols — stone fruits, mushrooms. Lower probability but worth testing.
Fructose — moderate probability.
Lactose — lower probability given your reported lack of dairy sensitivity.
Important Caveats
Not a permanent diet. Many high-FODMAP foods are valuable sources of fiber, prebiotics, and micronutrients. The goal is identification, not permanent restriction.
Fiber & colon health. This diet will reduce fiber intake, especially soluble fiber. During Phase 1 this is acceptable and temporary. After reintroduction, identify which high-fiber foods you can tolerate — many high-fiber foods are low-FODMAP (oats, carrots, green beans, quinoa, berries).
Colon health during elimination. Maintain whatever fiber you can from low-FODMAP sources. Your daily kefir supports microbiome health during the restrictive phase.
Does not replace a GI evaluation. Significant improvement during Phase 1 is useful evidence to bring to a gastroenterologist, who can guide further testing (SIBO breath test, Rome IV criteria evaluation).
High-Risk Reference
Bean-based pasta
CRITICAL
All beans (kidney, black, pinto, navy, etc.)
CRITICAL
Chickpeas / hummus
HIGH
Lentils
HIGH
Pea/lentil-based meat substitutes
HIGH
Onion & garlic (all forms)
HIGH
Wheat
MODERATE-HIGH
Inulin-fortified foods
MODERATE
Mushrooms
MODERATE
What Are FODMAPs?
FODMAPs are fermentable short-chain carbohydrates that are poorly absorbed in the small intestine. Gut bacteria ferment them, producing gas and drawing water into the bowel — causing bloating, distension, and discomfort.
F
Fermentable — descriptor that applies to all of the below
Bean-based pasta is one of the highest GOS foods available — and your most consistent, reliable trigger.
Home-cooked beans with proper preparation (soaked, rinsed, cooked in fresh water with the liquid discarded) are lower in GOS than canned — but all beans must be eliminated during Phase 1 regardless.
Commercial plant-based meat substitutes (pea, lentil, or bean-based) are dense with GOS and often also high in fructans — two FODMAP subgroups at once.
Time-of-day gradient — bloating builds breakfast → lunch → dinner as fermentable substrate accumulates with each meal and bacterial activity increases through the day.
Cumulative load — weekend eating expands bacterial populations that take days to normalize, carrying symptoms into the weekdays.