Peppers

Hot chili peppers are rated moderate on this index, not high, and they set this page's rating; sweet bell peppers are the gentler kind with a low rating of their own. Both are fresh vegetables that do not build much histamine on their own, but chili peppers carry capsaicin, which is flagged as a histamine liberator, and that is the main reason they land at moderate rather than low.

Why peppers are rated moderate

The word peppers covers a few different foods. Hot chili peppers (jalapeño through cayenne) are the ones rated moderate here, while sweet bell peppers (red, yellow, green) carry a low rating of their own. They are low in protein, so they do not develop much histamine as they sit, but the hot varieties contain capsaicin, a compound many HIT lists treat as a histamine liberator, meaning it may nudge your body to release its own histamine. Sweet bells carry little to no capsaicin, which is why they rate low. Worth separating out: black and white peppercorns come from a completely different plant and are low, while any pickled or fermented pepper rates high because that involves microbes.

What changes your risk

• Sweet vs. hot — sweet bell peppers carry little to no capsaicin, so they tend to sit easier for many people than jalapeño, cayenne, or other chilies, which pack the liberator compound.
• Portion — a few strips of bell pepper in a dish is a very different ask than a fiery, chili-heavy meal. Smaller amounts of the hot varieties are generally gentler.
• Freshness — buy firm, unwrinkled peppers and use them while crisp. A soft, slimy, or moldy pepper should be discarded whole, not trimmed.
• Cooking — roasting or sauteing changes the texture and mellows the heat somewhat, but cooking does not remove capsaicin or any histamine already present.
• Pickled or fermented is a different food — pepperoncini, jarred hot peppers, fermented chili pastes and hot sauces rate high, so keep those separate from a fresh pepper.

Lower-histamine alternatives

If you want the color and crunch of a pepper without the heat, sweet bell peppers are the low option, and fresh cucumber, zucchini, or carrot slices work well in salads and stir-fries too. For flavor and mild warmth without the capsaicin question, fresh herbs and black or white peppercorns are your friends here, since peppercorns come from an unrelated plant and rate low. For heat there is honestly no great low-histamine substitute, so a little fresh ginger for warmth is the closest gentle option.

How to lower the risk

Pick peppers that feel heavy and firm with tight, glossy skin, and store them whole in the fridge, using them within several days while they are still crisp. If you are cautious about the liberator effect, favor sweet bells over chilies, keep the portion modest, and remove seeds and the white pith from hot peppers, where much of the capsaicin sits. Roasting a bell pepper and peeling it gives you a soft, sweet addition to a meal without any pickling involved.

Common questions

Are bell peppers lower in histamine than chili peppers?

Yes. Sweet bell peppers carry a low rating of their own, while hot chilies are moderate, because bells lack the capsaicin that hot chilies carry.

Is black pepper high in histamine?

No. Black and white peppercorns come from an entirely different plant than sweet and chili peppers and are considered low, so they are a useful way to add flavor.

Why are pickled peppers rated high?

Fermented and brined peppers, like pepperoncini or many hot sauces, involve microbial activity that builds histamine, which is why they rate high while fresh peppers do not.

Does cooking peppers lower their histamine?

Cooking mellows the flavor and softens the texture but does not remove capsaicin or any histamine already present, so it does not change the rating.