Fody created this low-acid foods guide to explain clearly what “low acid” means and why it matters. It walks through the main food groups and everyday drinks, then gathers them all into a single quick-reference list. You can also pick up Low FODMAP diet basics along the way.

Start with Low FODMAP diet basics
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What Low Acid Means Here

The pH scale runs from 0 (most acidic) to 14 (most alkaline), with 7.0 sitting at neutral. Each number on the scale marks a tenfold change in acidity, so small gaps count. Foods above pH 4.6 count as low acid, and foods below that line count as high acid. Non-acidic foods are simply the everyday name for the same group. Most foods on a dinner plate sit above 4.6, while the high acid group is shorter: citrus, vinegar, and tomatoes.

See our Low FODMAP foods for acid reflux

Low Acid Vegetables and Fruits

Nearly all vegetables are low acid. Root vegetables such as potatoes and carrots range from about pH 5.0 to 6.5, and leafy greens, green beans, and squash fall in a similar range. Pickled or fermented vegetables drop into the acidic range. Low-acid fruits include cantaloupe (6.1 to 6.6), honeydew (6.0 to 6.7), and papaya (5.2 to 6.0). Citrus, pineapple, and most berries fall well below 4.6, while vine-ripened tomatoes sit right at the line (4.4 to 4.7). Ripeness matters too.

Overhead view of a colorful mix of sliced citrus, banana, tomatoes, peppers and berries arranged in and around bowls on a dark surface

Grains and Proteins

The list of non-acidic foods extends well beyond produce. Cooked rice and oatmeal sit above pH 5.0. Plain meat, poultry, and fish are generally pH 5.5 to 7.0 raw, and eggs rest near neutral. Preparation is the real variable: a citrus or vinegar marinade, or a tomato-based sauce, can turn a neutral food into a reflux trigger, so how a dish is prepared matters as much as what goes into it. Baking or steaming adds no acid to these foods.

See our Low FODMAP diet for GERD

Low Acid Foods List at a Glance

Here is the list of low-acid foods readers usually come for, grouped by type: vegetables such as potatoes, carrots, leafy greens, green beans, and squash; fruit such as cantaloupe, honeydew, and papaya; grains such as cooked rice and oatmeal; and proteins such as plain chicken, fish, and eggs. This roundup covers solid foods. Drinks and seasonings sit in their own section below, since that is where acidity tends to sneak back in.

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Drinks and Seasonings

Plain water is pH 7.0, and ginger tea tends to sit close to neutral. Coffee runs about 4.8 to 5.1, and its caffeine can relax the valve between the esophagus and stomach. Orange juice, lemonade, and most fruit juices fall between 2.5 and 4.0, while carbonated drinks, even plain sparkling water, sit around 3.0 to 4.0. When seasoning meals, herbs such as basil, cilantro, oregano, rosemary, and thyme bring plenty of flavor without adding acid. Mint is worth watching, as some people find it triggering.

Explore Fody's Low FODMAP pasta sauces

Low Acid and Low FODMAP Eating

Acidity and Low FODMAP status are separate questions. A food can be low in acid yet still not suit a Low FODMAP plan: ripe bananas are high in fructose, while firm, unripe bananas are Low FODMAP. Portion size matters too. Choosing fruit for both goals means checking each one on both counts. Onion and garlic aren't especially acidic, but they bother some people and are high-FODMAP fructans. Our Low FODMAP diet for GERD guide explains how the two fit together.

Making Your Own List of Low Acid Foods

Treat any food list for a low acid diet as a starting point, not a rule. Tolerance differs by person and portion: someone may handle a small amount of a food but not a large serving. Check ingredient lists on packaged foods for added vinegar, citrus, or tomato. Reflux two or more times per week may point to GERD, per NIDDK, and a healthcare professional or registered dietitian can guide your choices. Our acid reflux diet foods list goes further.

FAQs

Many people include lower-acid fruit such as melons and papaya, while citrus, pineapple, and most berries sit below pH 4.6. Trying one new fruit at a time, in a small portion, makes your own response much easier to spot. Tolerance varies from person to person, so a fruit that suits one person may not suit another. For picks that work for both goals, see Low FODMAP foods for acid reflux. Checking with a healthcare professional is a sensible next step.

No single list fits everyone. NIDDK names common triggers as citrus fruits, tomatoes, chocolate, coffee, high-fat foods, mint, spicy foods, and alcohol. Not all of these work through pH, though. Spicy foods and alcohol are generally better described as irritants than as sources of acid. Chocolate, high-fat foods, and mint tend to relax the valve between the esophagus and stomach rather than add acid. Tomatoes sit near the acidic line, so many people watch their own response and portion size.

The body tightly regulates blood pH, so eating acidic or alkaline foods is unlikely to change it significantly. Bold claims around alkaline eating often overlook this, so they deserve a careful second look. An alkaline diet can limit otherwise healthy foods while having little effect on body pH. Choosing low-acid foods is really about how specific foods sit with you day to day, not about shifting your blood pH. Your personal response matters far more than any single dietary label.

Lightly cooked vegetables are often easier on digestion than raw ones. Frying or smothering vegetables in heavy sauces can work against you, while steaming, baking, and roasting are generally gentler options. Seasoning cooked vegetables with herbs instead of vinegar, citrus, or tomato keeps the dish gentle, flavorful, and easy to repeat at home. That said, individual tolerance still applies, so what works for one person may not suit another. Pay attention to how your own body responds to each approach.

Keeping a food journal is one of the most practical tools. Note the foods you eat, the times of day, and the cooking methods used, then watch for patterns over a few weeks. Adding portion sizes to each entry helps too, since a small serving and a large one can feel different. Over time, the connections between certain meals and your symptoms tend to become clearer. If symptoms persist despite these adjustments, speak with a healthcare professional for personal guidance.