Xanthan Gum in Protein Powder: Is It Bad?

The short answer: Xanthan gum in protein powder is there for texture. A small amount thickens the shake and makes it feel creamier. The FDA groups it with the stabilizers and thickeners used in frozen desserts and dairy foods. In our protein collection, only the Whey Isolate & Concentrate Blend Powder (Chocolate) and its vanilla version list it, right beside guar gum.

We sell both kinds of tub, so read this as a seller's guide. In our protein collection, one powder line is thickened with two gums and the other three aren't, which lets you test anything we say against a label on either side.

Key takeaways

• Xanthan gum and guar gum thicken protein shakes and give them a creamier feel, and the FDA lists both among the thickeners used in frozen desserts and dairy foods.
• The FDA counts guar gum and pectin as added dietary fibers on Supplement Facts labels, but xanthan gum isn't on its list.
• Labels list ingredients from heaviest to lightest without printing gum amounts, so gums near the end of the list are among the smallest parts of the scoop.
• If extra fiber leaves you gassy or bloated, a powder without guar gum takes one fiber source out of your day, though "no gums" doesn't always mean "no thickeners."
• Of the eight tubs in our protein collection, only the two Whey Isolate & Concentrate Blend flavors carry gums, while our chocolate collagen powder, sold outside that collection, lists xanthan gum too.

Why is xanthan gum in protein powder?

Xanthan gum is in protein powder to thicken the shake, give it a creamier feel and keep its texture even, since protein stirred into water often drinks thin.

The FDA's page on types of food ingredients places xanthan gum and guar gum in two groups. The first is stabilizers and thickeners, which give foods an even texture. The second is fat replacers, which give reduced-fat foods the creamy texture you'd expect from the full-fat version. Frozen desserts and dairy products appear as examples in both groups.

That second group explains a lot about protein shakes. Our Whey Isolate & Concentrate Blend Powder (Chocolate) carries 2 g of total fat per 2 scoops (approximately 35 g) serving, so its richness can't lean on fat. Curiously, the same FDA table lists whey protein concentrate as a fat replacer too, and our blend pairs whey isolate with whey concentrate.

Is xanthan gum in protein powder bad for you?

Xanthan gum in protein powder is a food thickener the FDA names on its ingredient guide, and the agency says food ingredients must meet the same safety standard whether they're naturally or artificially derived.

That page doesn't rate single ingredients, so the real question is how a thick shake sits with you.

Digestion is where gums get talked about most. Guar gum counts as dietary fiber under FDA rules, and MedlinePlus explains that eating a large amount of fiber in a short period can cause intestinal gas, bloating and abdominal cramps. It adds that bringing fiber in slowly can help, and it suggests drinking plenty of fluids.

Xanthan gum is a different case. It isn't on the FDA's fiber list, and none of the federal pages we cite links it to digestion, so we won't guess either way.

How guar gum plays out depends on the rest of your day. Our blend's panel prints 2 g of dietary fiber per 2 scoops (approximately 35 g) serving, and it doesn't say how that splits between guar gum and Solnul® (Resistant Potato Starch).

If high-fiber meals already leave you uncomfortable, a gum-free powder takes one variable away. If you've never noticed a thing, there's no label-based reason to switch. Our comparison of psyllium husk products covers the slow-start approach to fiber in more detail.

Guar gum vs xanthan gum: what is the gum in your protein powder?

Guar gum and xanthan gum are both carbohydrates that soak up water and thicken shakes, but guar comes from a bean while xanthan gum is made by fermentation.

Xanthan gum is made by fermenting sugar with a bacterium, Xanthomonas campestris, then drying the result into a fine powder, and it takes its name from that bacterium. Guar gum comes from guar beans, the seeds of a legume called Cyamopsis tetragonoloba. Pectin comes from fruit, and our labels name apple pectin powder.

Other names you may spot include acacia gum (gum arabic), cellulose gum, carrageenan and "gum blend." If a label only says "gum blend," look for the individual gums named after it. If they aren't named, you can't tell which ones you're getting.

The FDA's questions and answers on dietary fiber names seven added fibers that meet its definition for Nutrition and Supplement Facts labels, and guar gum and pectin are two of them. Xanthan gum isn't there. It's also missing from a second list of fibers the agency intends to propose adding, which does include acacia (gum arabic).

So the two gums do the same job in your glass, but only guar gum counts as fiber in the FDA's eyes.

How much gum is in a scoop of protein powder?

Protein powder labels don't print gum amounts, but a gum's place in the ingredient list shows it makes up a small share of the scoop.

The FDA's ingredient labeling guide for dietary supplements says ingredients go in descending order of predominance by weight, so the heaviest comes first.

Here's our blend's list, word for word: "Whey Protein Blend (Whey Protein Isolate and Whey Protein Concentrate), Solnul® (Resistant Potato Starch), Natural Flavors, Pink Himalayan Crystal Salt, Guar Gum, Xanthan Gum, and Stevia Leaf Extract."

Both gums come after the salt, so each one weighs no more than the salt in the scoop. Only the stevia sits lower. The label doesn't give either gum's weight, and we won't guess at one.

One more trap: the Dietary Fiber row isn't a gum counter. FDA's fiber Q&A says the fiber a company declares should leave out any carbohydrate that doesn't meet the fiber definition. Our chocolate whey isolate prints 1 g of dietary fiber per 1 Scoop (25g) serving with no gum, pectin or starch in its list, and its label doesn't say where that gram comes from. To learn whether a powder has gums, read the ingredient list, not the fiber line.

Which Betterly protein powders contain xanthan gum or guar gum?

Within our protein collection, only Whey Isolate & Concentrate Blend Powder lists gums, in chocolate and vanilla; our isolate, whey-with-MCT and plant powders list no guar or xanthan gum.

Protein per serving doesn't predict the gum question, since the two 22 g powders land on opposite sides of it. The blend also lists resistant potato starch and prints 2 g of dietary fiber per 2 scoops (approximately 35 g) serving, the most of the four. The other three print 1 g each at the servings shown.

Gums turn up outside the protein collection, too. Our Collagen Peptides Powder (Chocolate) lists acacia powder and xanthan gum, with 18 g of protein per 2 Scoops (27 g) serving, and our Collagen Peptides & MCT Creamer (Vanilla) lists acacia powder.

From our shop: Whey Isolate & Concentrate Blend Powder (Chocolate) — whey isolate and whey concentrate with guar gum and xanthan gum, and 22 g of protein per 2 scoops (approximately 35 g) serving.

Can you use xanthan gum to make protein ice cream?

Yes, xanthan gum helps protein ice cream feel creamy, the same job the FDA describes for gums in frozen desserts and other reduced-fat foods.

A plain protein shake can freeze hard and icy. A thickener gives the base more body, so it has a better chance of spinning into something soft in a pint-style ice cream machine.

With our blend, start from the label. Its suggested use is one serving (2 scoops) in 8–12 oz (240–355 ml) of cold water, blended or shaken thoroughly. Freezing isn't covered by the label, so from there:

1. Mix one serving exactly as the label directs.
2. Freeze it in your machine's container, then follow the machine's own instructions.
3. Count whatever comes out of the machine as one serving. Adding a third scoop to firm it up goes past what the label calls a serving.

Working with a gum-free powder instead? Some people stir in a pinch of xanthan gum from the baking aisle, since a little thickens a lot. Just know that it undoes the reason you may have picked a gum-free tub.

How do you mix a protein powder that contains gums?

Mix Whey Isolate & Concentrate Blend Powder the way its label says: one serving (2 scoops) in 8–12 oz (240–355 ml) of cold water, blended or shaken thoroughly.

A few habits help within those directions:

• Let the water set the thickness. Twelve ounces gives a thinner drink than eight, and both sit inside the label's range.
• Pour liquid first, then powder. The powder spreads out before the gums start to grab, which means fewer clumps.
• Shake hard or use a blender. Gums can form small lumps when powder lands in one spot.
• Keep it cold. The label calls for cold water. For protein in a hot mug, our guide to mixing protein powder into coffee compares which powders suit it.

Other labels differ. Whey Protein Isolate Powder calls for one scoop with 6-8 oz (177-237ml) of water or your favorite beverage daily, and Fava Bean Protein Isolate Powder calls for two scoops in the same amount. All four labels say not to exceed the recommended dose.

When don't you need a gum-free protein powder?

You don't need a gum-free protein powder if gum-thickened shakes sit well with you and you like a thicker drink, because the gum mainly changes texture.

A powder without gums does make sense in a few cases:

• You like a thin shake that drinks more like flavored milk.
• You stir protein into hot drinks, and our gum-thickened blend's label calls for cold water.
• High-fiber days already leave you gassy or bloated, and you'd rather not add another fiber-type ingredient.
• You want the shortest list you can find. Our Whey Protein Isolate Powder (Chocolate) has a three-ingredient list: whey protein isolate, natural flavors and stevia extract (leaf).

Shopping vegan? Fava Bean Protein Isolate Powder (Chocolate) lists no guar or xanthan gum, and its label carries a vegan claim. It does list apple pectin powder, which the FDA counts as a fiber and files with the thickeners. So it's gum-free, not thickener-free. Fava bean protein isolate leads its list, followed by YESTEIN™ Fermented Nutritional Yeast Protein, and our side-by-side of fava and pea protein explains the fava part.

From our shop: Whey Protein Isolate Powder (Chocolate) — 18 g of protein per 1 Scoop (25g) serving, with no gum, pectin or starch anywhere in its three-ingredient list.

Who should check with a healthcare provider first?

Talk to a healthcare provider before starting a protein powder if you're pregnant or nursing, under 18, on prescription medication, scheduled for surgery or managing a medical condition.

• Each label named in this guide prints this caution: "Consult a physician if pregnant, nursing, under 18, or have a medical condition."
• If a provider has asked you to limit fiber, bring the ingredient list along, since guar gum and pectin count as fiber under FDA rules.
• All three of our whey powders state that they contain milk, so skip them if you avoid milk.
• Fava Bean Protein Isolate Powder (Chocolate) lists 1 mg of iron per 2 scoops (34.7g) serving, Whey Protein Isolate & MCT Powder (Chocolate) lists 2 mg per 2 Scoops (35g) serving, and our Collagen Peptides & MCT Creamer (Vanilla) lists 3 mg per 2 Scoops (20 g) serving. All three labels warn: "Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6." Store them out of reach.

FAQ: xanthan gum in protein powder

Does xanthan gum in protein powder cause bloating?

Our federal sources don't say: none of the pages we cite links xanthan gum in protein powder to digestion. Guar gum, which often sits beside it, is a fiber, and MedlinePlus says a large amount of fiber in a short time can cause gas, bloating and cramps, and that adding fiber slowly can help. A gum-thickened shake is only one part of your day's total. If high-fiber meals already bother you, a gum-free powder is an easy swap to try.

Is there xanthan gum in whey protein isolate?

Not always. Betterly's Whey Protein Isolate Powder lists only whey protein isolate, natural flavors and stevia extract (leaf). Our Whey Protein Isolate & MCT Powder has no guar or xanthan gum either, though it adds apple pectin powder and sunflower lecithin. Other brands' isolates may include gums, so read the ingredient list on any tub instead of assuming from the word "isolate."

Is apple pectin the same as a gum?

Apple pectin isn't called a gum, but it does a similar job. The FDA lists pectin beside guar gum and xanthan gum as a stabilizer and thickener, and it counts pectin as a dietary fiber on Supplement Facts labels. That's why we don't call our Fava Bean Protein Isolate Powder thickener-free, even though its ingredient list names no guar or xanthan gum.

Does resistant potato starch in protein powder count as fiber?

Resistant potato starch isn't on the FDA's main list of added fibers, but the agency's second list, of fibers it intends to propose adding, names high amylose starch (resistant starch 2). Our Whey Isolate & Concentrate Blend Powder (Chocolate) lists Solnul® (Resistant Potato Starch) and prints 2 g of dietary fiber per 2 scoops (approximately 35 g) serving. Its label doesn't say which type of resistant starch Solnul® is, or how much of that 2 g it supplies.

Does a protein shake with gums get thicker as it sits?

Yes, a protein shake with guar gum or xanthan gum can keep thickening after you mix it, because the gums go on taking up water. Drink the shake soon after mixing, or give it another hard shake before you sip if it has firmed up in the bottle.

Sources

• Types of Food Ingredients (FDA)
• Questions and Answers on Dietary Fiber (FDA)
• Dietary Supplement Labeling Guide: Chapter V. Ingredient Labeling (FDA)
• Fiber (MedlinePlus Medical Encyclopedia)

If this left you looking for somewhere to start, read chocolate whey protein with guar gum and xanthan gum — its amounts per serving are listed on the page. For the practical questions this raises, how dosing, sourcing and subscriptions work is answered in one place.