Essential information for making smart ingredient choices that support your digestive health
This guide was compiled from various sources to support my personal recipe development and dietary journey. While I've done my best to ensure accuracy, this information is not guaranteed to be 100% accurate or up-to-date. Always consult with a registered dietitian or healthcare provider for personalized guidance. Use this as a starting point for your own research.
Natural base (alkaline-forming) foods help balance the body's pH, reducing acidity and inflammation. These foods are essential for managing digestive issues and creating recipe substitutions that support gut health.
Spinach, kale, Swiss chard, collard greens are highly alkaline
Sweet potatoes, beets, carrots, potatoes (when cooked)
Broccoli, cauliflower, cabbage, bok choy
Avocados, bananas, melons, coconut
Almonds, chestnuts, various beans
Parsley, basil, ginger, garlic
Not all peppers are created equal when it comes to digestive comfort. This guide helps you choose peppers that are both low-FODMAP and gentle on sensitive stomachs.
Red bell peppers are generally preferred as they are low in FODMAPs. Green peppers are safe in smaller servings.
Fresh Poblano, Anaheim, Hatch, and Serrano peppers are considered low FODMAP.
Jalapeños (limit to 1 small) and cayenne pepper (used sparingly) are acceptable but watch for capsaicin sensitivity.
Plain paprika, smoked paprika, and black pepper are safe—just ensure they don't contain garlic or onion powder.
Banana peppers are low in FODMAPs and add tangy flavor.
Roasting peppers makes them softer and easier to digest than raw.
Removing the skins of peppers can reduce irritation for sensitive stomachs.
While some peppers are low in FODMAPs, capsaicin can cause heartburn or pain in those with IBS.
Raw peppers may be harder to digest for some individuals—cooking helps break down fibers.
Leeks can be a safe, onion-like substitute when you know which parts to use. Understanding the FODMAP content of different leek parts helps you add flavor without triggering symptoms.
Low FODMAP: The dark green leaves are safe in servings up to 1 cup (100g), making them a safe, flavorful, and onion-like substitute for cooking. These are the upper leaves that are often discarded.
High in Fructans: The white bulb and light green stem should be avoided or limited to 2 tablespoons (14g) if you're following a strict low-FODMAP diet. These parts contain higher amounts of FODMAPs.
Don't discard the dark green tops—they're the low-FODMAP part! Slice thinly and sauté, and use in soups, stir-fries, and sautés.
Leeks trap dirt between layers. Slice lengthwise and rinse under running water to remove grit.
Use leek greens wherever you'd use onions or scallions for a mild, sweet, onion-like flavor.
If using the white/light green parts, stick to the 2 tablespoon limit to stay low-FODMAP.
Nightshade sensitivity involves adverse reactions—such as joint pain, inflammation, digestive issues (bloating, diarrhea), skin rashes, and fatigue—to plants in the Solanaceae family. While not harmful to most, these foods may trigger symptoms in individuals with autoimmune diseases, leaky gut, or specific intolerances to compounds like solanine.
White potatoes contain solanine, especially in the skin and green parts. Sweet potatoes are not nightshades and are generally safe.
All tomato products (fresh, sauce, paste, ketchup) are nightshades and may trigger inflammation in sensitive individuals.
Bell peppers, chili peppers, jalapeños, and pepper-based spices like paprika and cayenne are all nightshades.
Eggplant contains solanine and may cause digestive upset or inflammation in those with sensitivity.
Sensitivity may be caused by solanine, a natural glycoalkaloid compound found in nightshades. In susceptible people, solanine can increase intestinal permeability (leaky gut) and trigger inflammatory responses, particularly affecting those with autoimmune conditions.
The best way to identify a nightshade sensitivity is to eliminate all nightshades from your diet for 2 to 4 weeks, then reintroduce them one at a time while carefully monitoring symptoms. Keep a food diary to track reactions and identify specific triggers.
Replace white potatoes with sweet potatoes, replace tomatoes with beets or carrots in sauces, use turmeric instead of paprika.
Check for hidden nightshades in spice blends, condiments, and processed foods. Paprika and cayenne are common hidden sources.
Remove all nightshades for 2-4 weeks, then reintroduce one at a time every 3-4 days to identify specific triggers.
Those with autoimmune diseases (rheumatoid arthritis, lupus), leaky gut syndrome, or inflammatory conditions are most likely to experience sensitivity.
Ginger is a useful digestive aid and flavor booster, but the form you use and where it comes from can make a meaningful difference for sensitive stomachs.
Ground ginger powder is more concentrated than fresh — a little goes a long way. If a recipe calls for fresh ginger, use about ¼ tsp ground ginger per 1 tsp fresh. For sensitive stomachs, starting with smaller amounts of either form lets you gauge tolerance before increasing.
Even though ginger is generally soothing for digestion, too much can be irritating for some people. Start with a small amount — especially in new recipes — and build up based on how you feel.
Pre-minced ginger in jars often contains added ingredients — citric acid, distilled vinegar, preservatives, or other additives — that can be triggers for people with sensitive digestive systems. Freshly grated ginger from a whole root is always the safest option. It's one ingredient, nothing added, and the flavor is noticeably better.
Buy fresh ginger root and grate it as needed using a microplane or fine grater. Keeps for weeks in the fridge, or freeze it and grate from frozen.
A good pantry staple when you don't have fresh on hand. Check that it contains only ginger — no added fillers or anti-caking agents.
Check the ingredient label carefully. Many contain vinegar, citric acid, or preservatives that may be digestive triggers.
If you're new to ginger or testing tolerance, start with ¼ tsp and increase gradually. More is not always better for sensitive stomachs.