Ingredient file // Other
Dried Yucca Schidigera Extract
A stool odor additive with modest dog evidence
Dried yucca schidigera extract comes from the trunk of a desert yucca and goes into kibble in milligram amounts for its soap-like saponins. In dogs it lowers fecal ammonia and sometimes stool odor. It does not improve digestibility, and no dog study backs joint claims.
Role in the food Does a job
- What it is
- A dried, saponin-rich preparation from the pressed trunk of the Mojave yucca, added in trace amounts.
- Made from
- Shredded, pressed trunks of the Mojave yucca
- Main job
- Cuts fecal ammonia and odor
- Typical amount
- Dog trials used 125 to 750 mg per kg
- Watch for
- Liver enzyme rise at the highest tested dose
- Not the same as
- Yuca (cassava) root
Straight answer
Is Dried Yucca Schidigera Extract safe for dogs?
Ignore it unless stool odor matters to you
It sits near the end of the list, among the vitamins and minerals, because it works at a few hundred milligrams per kilo. Its presence says nothing about the quality of the food. If yard odor bothers you, it is a small plus. Skip any joint claim, and do not expect better digestibility.
- Why it is in the food
- Cuts fecal ammonia and odor
- Watch for
- High doses; Garden yucca plants
- How common
- Listed by 1 of the 3,205 foods we track
Our read // In our catalog
In 1 of every 3,205 foods we track
Share of foods that list it
<1%
1 of the 3,205 foods with an ingredient list on file, from 1 brand. All dry dog food.
Each square is 1% of the catalog
Where it sits on the label
Median position 18. In the top five of 0 foods, so it is usually a minor ingredient.
Price per lb
Median of the cheapest bag price across 1 priced foods, 13% below the catalog. The price is the food's, not the ingredient's.
Who leans on it
100%
of the foods that list it are from Horizon. 1 brand use it in total.
What it is
How it is made
Mojave yucca grows only in the California and Arizona desert and Baja California. Its trunks are harvested for drink foams, supplements and feed additives, and Mexico limits each plot to one fifteenth of its crop a year.1,7
- 01 // Source Yucca trunks Harvested trunks run 6 to 12 inches across and 4 to 8 feet long.
- 02 // Process Shredded and pressed Trunks are shredded and run through a screw press. About 20% of their weight comes out as juice.
- 03 // Process Concentrated or dried The juice is filtered and concentrated to 50 Brix. The press cake is sun or drum dried, then ground to powder.
- 04 // Output Dry additive A saponin-rich powder or extract, weighed into dog food at a few hundred milligrams per kilo.
What is in it
Composition, dry matter
10
% saponins
The most saponin yucca stem carries on a dry basis. Saponins are the working part, dosed in milligrams; the rest is mostly plant fiber and carbohydrate.
Why it is in the bag
There to cut stool ammonia, not to feed
- Main nutrition
- Supporting nutrient
- Does a job
- Mostly filler
Makers add it to cut fecal ammonia and stool odor, a useful pitch for high-protein recipes. Dog trials dosed it at 125 to 750 mg per kg of food, under a tenth of a percent, so it adds no nutrition worth counting. In a 20-Beagle trial it lowered fecal ammonia, and odor fell at 500 mg/kg, but only on the 34% protein diet. Because it is so small an amount, it sits low on the list.1,2
-
01
Lowers fecal ammonia
Saponins are thought to bind ammonia and curb gut bacteria that make urease. In a 20-Beagle trial, adding yucca cut fecal ammonia on both low and high protein diets.1,10
-
02
Less stool odor, sometimes
Odor fell at 500 mg/kg in a 34% protein diet, not reliably elsewhere. That makes it a tool for high-protein recipes, not a general fix.1
-
03
Borrowed from livestock
Sow farms feed yucca extract to cut manure ammonia, and EFSA judged a yucca blend safe for broilers at 250 mg/kg. Milligram doses keep it a trace line on the label.9,11
How much Dog trials tested 125 to 750 mg per kg of food, under a tenth of a percent, and the clearest odor effect came at 500.1,2
Our read // The claims
What the evidence supports
Strong: controlled studies in dogs agree. Some: small or mixed dog data. Thin: mechanism or lab work only. None: nothing, or the evidence points the other way.
-
Brands say
Yucca lowers ammonia in dog stool
Evidence
- Strong
- Some
- Thin
- None
In a 20-Beagle trial testing 250 to 750 mg/kg on 25% and 34% protein diets, adding yucca cut fecal ammonia on both diets. In a test-tube study with dog fecal bacteria, yucca powder had only minor effects.1,4
-
Brands say
Yucca makes your dog's poop smell less
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
It works patchily. In the 20-dog trial, odor dropped only at 500 mg/kg on the 34% protein diet. A 14-dog trial at 125 to 375 ppm reported a significant drop for zeolites, not yucca. The positive 1997 panel study was industry-authored.1,2,3
-
Owners say
Yucca is poisonous to dogs
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
ASPCA lists the yucca plant as toxic, with vomiting from saponins. In a 20-dog feeding trial, the only harm flagged came at the top dose: 750 mg/kg raised the liver enzyme ALT.1,6
-
Brands say
Yucca eases arthritis and joint inflammation
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
The only direct arthritis studies are 1970s human reports in an obscure journal, per a 2006 review whose lead author consulted for a yucca producer. Dog use grew from those reports. The review cites no dog joint trial.5
Straight answers
What owners ask
-
Q01
Is it just filler?
NoAt a few hundred milligrams per kilo it adds no bulk or calories, so it cannot fill anything. It is a functional additive aimed at fecal ammonia and odor, with modest dog evidence.1
-
Q02
Will it help my dog's joints?
No evidenceJoint use traces back to 1970s human reports that arthritis researchers never accepted. The main review cites no dog joint trial, and the dose in kibble is tiny.5
-
Q03
Is it the same as yuca root?
NoYuca, or cassava, is a starchy root eaten as food. Yucca schidigera is a desert plant whose trunk is pressed for saponins. The similar names are a coincidence of spelling.
Who uses it
Brands, best sellers and the company it keeps
Top brands, by foods that list it
Foods that list it / all the brand's recipes we track.
Usually listed with, share of the foods that list it
- Turkey Meal 100%
- Red Lentils 100%
- Peas 100%
- Pea Starch 100%
- Turkey 100%
- Chicken Fat 100%
- Mixed Tocopherols 100%
- Flaxseed 100%
- Egg Product 100%
- Carrots 100%
- Apples 100%
On the shelf
Foods that list Dried Yucca Schidigera Extract
1 food in our catalog lists it, highest on the label first.
Sources
What we read
Checked October 1, 2026.
- 1 Inclusion of Yucca schidigera extract in diets with different protein levels for dogs
- 2 Zeolites and Yucca schidigera in commercial ration for dogs: palatability, digestibility and reduction of fecal odors
- 3 The ameliorating effect of Yucca schidigera extract on canine and feline faecal aroma
- 4 In vitro evaluation of the effects of Yucca schidigera and inulin on the fermentation potential of the faecal microbiota of dogs fed diets with low or high protein concentrations
- 5 Anti-inflammatory and anti-arthritic effects of yucca schidigera: a review
- 6 Yucca
- 7 Yucca
- 8 Yucca Schidigera Extract
- 9 Safety and efficacy of a feed additive consisting of Quillaja saponaria Molina and Yucca schidigera Roezl ex Ortgies (Magni-PHI) for all poultry species and ornamental birds
- 10 Effects of Yucca schidigera Supplementation on In Vitro Cecal Fermentation and In Vivo Nutrient Digestibility in Male and Female Lean Fattening Pigs
- 11 Dietary Yucca schidigera Extract Supplementation During Late Gestating and Lactating Sows Improves Animal Performance, Nutrient Digestibility, and Manure Ammonia Emission