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Emulsifiers in food: ranked by label count, with what the gut studies do and do not show.

Updated

The emulsifiers on food labels ranked by how many labels list each: lecithin, mono and diglycerides, polysorbate 80, carrageenan. FDA status and a cautious summary of the gut microbiome studies.

Quick answer

Emulsifiers keep oil and water mixed in chocolate, bread, ice cream and dressings. The most common on our labels are lecithin and mono and diglycerides; polysorbate 80 and carrageenan are less common. The checker flags carrageenan, not the others. Gut-microbiome studies on some emulsifiers are early: mostly mouse work and one small human feeding study.

Lecithin
389 labels
Mono and diglycerides
118 labels
Polysorbate 80
14 labels
Carrageenan
55 labels

01 · A closer look

What an emulsifier does.

Oil and water separate. An emulsifier has one end that likes water and one that likes fat, so it holds the two together. That is why chocolate stays smooth, bread stays soft and salad dressing does not split on the shelf.

02 · A closer look

Lecithin and mono and diglycerides.

Lecithin (from soy or sunflower) and mono and diglycerides are the workhorses. The FDA affirms lecithin under 21 CFR 184.1400 and mono and diglycerides under 21 CFR 184.1505, both as generally recognized as safe. Mono and diglycerides are made from fats and are used mostly in bread, ice cream and peanut butter.

21 CFR 184.1505: mono- and diglycerides

03 · A closer look

Polysorbate 80 and carrageenan.

Polysorbate 80 is permitted in frozen desserts such as ice cream at up to 0.1 percent of the finished product under 21 CFR 172.840. Carrageenan is a seaweed extract used as a thickener and has its own guide; our checker flags it.

21 CFR 172.840: polysorbate 80

04 · A closer look

What the gut studies show.

In 2015 Chassaing and colleagues reported that polysorbate 80 and carboxymethylcellulose, fed to mice at doses well above typical human intake, changed the gut microbiota and promoted colitis and metabolic syndrome. A 2022 randomized controlled-feeding study in healthy adults found that carboxymethylcellulose modestly changed the gut microbiota and increased abdominal discomfort in a small group. These are early findings in animals and small trials, and they do not show harm from the amounts in ordinary foods. No health authority has used them to ban either emulsifier.

Chassaing et al., Dietary emulsifiers impact the mouse gut microbiota promoting colitis and metabolic syndrome, Nature (2015)

05 · A closer look

How our checker treats them.

Only carrageenan is flagged. Lecithin, mono and diglycerides and polysorbate 80 are counted here for transparency but do not change a score. If you want fewer emulsifiers, compare the ingredient lists on one shelf, because a short list usually has none.

From the catalog · 12 labels

Emulsifier ranking in our catalog

These are the emulsifiers we count, from most to least common on current, complete labels. Open any product below to see its full label.

Emulsifiers ranked by current labels that list them (counted at the last site build)
EmulsifierLabelsShare of current labels
Lecithin3898.2%
Mono and diglycerides1182.5%
Carrageenan551.2%
Polysorbate 80 and other polysorbates140.3%

The short answer

Our picks for emulsifiers in food

WinnersSunButter Creamy SunButter Tubs, Wholesome Provisions Fettuccine Low Carb Pasta, and Banza Microwavable Mac & Cheese each score 71/100 (no verified organic claim). They tie, so choose on the exact flavor or format you want.

No 100 yetNothing on this shelf reaches 100 yet. A 100 needs a label with none of the nine groups we check plus a verified organic claim (and, for animal foods, a verified grass-fed or pasture-raised claim), and none of the 9 labels we have verified here meets all of that. These are the best available picks, not a perfect score.

Clear noDutch Farms Cottage Cheese (lists carrageenan and artificial preservatives), Darigold Cottage Cheese (lists carrageenan), Dunkin Original Coffee Creamer (lists carrageenan), plus 3 more with a listed group.

Ranked from 9 of 9 products with current labels. Every product is in the table below; a score reflects labels and claims, not nutrition, allergies or safety.

Compare the recorded labels

Find the ingredients that matter to you.

9 of 9 products

“No …” columns: None found on the label · Listed on the label · Unknown. Diet fit: Fits · Doesn’t fit · Unknown (rules; not medical advice). Claims: verified · not established. Default: most check marks first; not a health score.

Compare product claims and recorded ingredients. Click a column heading to sort.
Buy
71 / 1009 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
63 / 1008 of 9 groups clear · no organic claimProduct details →4
63 / 1008 of 9 groups clear · no organic claimProduct details →4
63 / 1008 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
63 / 1008 of 9 groups clear · no organic claimProduct details →3
53 / 1008 of 9 groups clear · no organic claimProduct details →4
47 / 1007 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
How the clean score works

No setup needed, and strict: a full 100 needs every additive group clear and a verified organic claim (animal foods also need a verified grass-fed or pasture-raised claim; wild seafood and salt, which have no USDA organic standard, are scored without the organic points, and plant-based milks, cheeses and proteins without the feeding claim). Points: the nine additive groups (seed oils, artificial dyes, MSG, artificial sweeteners, carrageenan, artificial preservatives, hydrogenated oils, corn syrups, banned-abroad additives) share 60 points equally — not found earns a group’s full share, “may contain” earns half, listed earns 0; a verified organic claim is worth 25; a verified grass-fed or pasture-raised claim is worth 15 and counts only for animal foods. No claim, or an expired or unverified claim, earns nothing, so products without those claims cannot reach 100. Unverified or expired ingredient labels receive no score. Equal scores are equal. Ties are ordered by brand. Unknown and stale evidence never passes “Only show matches.” Producer claims and prices do not affect this score. This is not a nutrition, allergy, or safety rating.

As an Amazon Associate I earn from qualifying purchases. Buying links do not influence ingredient results. “Buy on Amazon” opens a reviewed product listing; “Find where to buy” opens the maker’s page. Confirm the package, seller, stock, and current price before checkout. Price observations expire after 30 days.

Primary sources

Sources

  1. 21 CFR 184.1400: lecithin law.cornell.edu
  2. 21 CFR 184.1505: mono- and diglycerides law.cornell.edu
  3. 21 CFR 172.840: polysorbate 80 law.cornell.edu
  4. Chassaing et al., Dietary emulsifiers impact the mouse gut microbiota promoting colitis and metabolic syndrome, Nature (2015) doi.org
  5. Chassaing et al., Randomized controlled-feeding study of dietary emulsifier carboxymethylcellulose, Gastroenterology 162(3):743-756 (2022) doi.org