Is carrageenan high in nightshades?

Nightshades status

No data

Is carrageenan high or low in nightshades? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.

Related checkers

Compare carrageenan across criteria

AIPAvoid Whole30Avoid

Sensitivity notes

Why nightshades food checker matters

Nightshades are a plant family including tomatoes, peppers, eggplants, and potatoes. Some people find that avoiding nightshades helps with joint pain, digestive issues, or inflammatory conditions, though research is limited.

Complete elimination for 30 days gives the clearest picture
Watch for hidden nightshades in spice blends and sauces
Paprika and cayenne are nightshades often overlooked
Sweet potatoes are NOT nightshades - they're safe
Goji berries are nightshades

Sensitivities

What carrageenan contains

Additives

Emulsifiers & thickenersAvoid

Diet fit

Where carrageenan fits

Therapeutic diets

AIPAvoid

Lifestyle diets

Whole30Avoid

Ingredient notes

What to know about carrageenan

Carrageenan is a thickener extracted from red seaweed (E407) that keeps plant milks from separating and gives ice cream, cream and deli meat their body. On the classic food chemistry triggers it is clean: no histamine, no salicylates, no FODMAPs, no lactose, gluten, nickel, sulfites or free glutamate, which is why it grades A across those columns here. Its D grade for inflammation and its exclusion from AIP come from somewhere else entirely: a long-running and genuinely unresolved argument about whether food-grade carrageenan irritates the gut lining. Understanding that argument is the difference between avoiding it for a reason and avoiding it out of noise.

Watch for

Most of the alarming animal research used poligeenan, not carrageenan.Poligeenan is an acid-degraded, low molecular weight version (around 10 to 20 kDa) that is not permitted in food and is used deliberately in laboratories to induce inflammation and ulceration. Food-grade carrageenan is a much larger molecule. Anyone quoting the ulcer studies at you is usually quoting the wrong compound.
The distinction is real but not perfectly clean.EFSA re-evaluated carrageenan in 2018, kept the group acceptable daily intake at 75 mg per kg of body weight, but made that figure temporary and asked for better data, noting that the low molecular weight tail of food-grade carrageenan overlaps with the high molecular weight tail of poligeenan.
Human evidence is thin in both directions.A small randomised trial in ulcerative colitis patients in remission found earlier relapse in the carrageenan arm, but with roughly a dozen participants it is a signal to follow up, not a verdict. If you have IBD or react to plant milks specifically, it is a sensible single variable to test in a food journal.
It is easy to remove from a diet without noticing what you removed.Carrageenan concentrates in plant milks, dairy-free cream and yoghurt, ice cream, processed cheese and sliced deli meat, and those products carry other candidate triggers too. Swap the product, then reintroduce, rather than assuming the additive was the culprit.

Swap ideas