Ingredient file // Starch
Whole Dried Potato
Useful starch, without a special health payoff
Whole dried potato comes from potato tubers dried for use in food and feed. In kibble, it supplies starch for energy and helps the pieces hold together. Its presence does not make a recipe healthier than one made with grain.
- What it is
- Dried potato tubers that retain other potato solids alongside their starch.
- Made from
- Whole potatoes, including cull tubers
- Main job
- Starch for energy and structure
- Typical amount
- Not published
- Watch for
- Potato and pulse ingredients clustered high
- Not the same as
- Potato starch
Straight answer
Is Whole Dried Potato safe for dogs?
Read it as starch and scan nearby ingredients
Whole dried potato high on the list means a meaningful starch contribution, not a vegetable garnish. Look for potato starch, peas and other starches around it, then judge the complete food's protein and nutritional adequacy. Do not pay extra for a grain-free claim.
- Why it is in the food
- Starch for energy and structure
- How common
- Listed by 3 of the 3,205 foods we track
Our read // In our catalog
In 1 of every 1,068 foods we track
Share of foods that list it
<1%
3 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 13. In the top five of 1 food, so it is usually a minor ingredient.
Above the salt
Listed before the salt in 67% of foods. In the rest it is under about 1% of the recipe.
Price per lb
Median of the cheapest bag price across 3 priced foods, 32% 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 Rachael Ray Nutrish. 1 brand use it in total.
What it is
How it is made
Growers and food processors divert small or off-grade potatoes. Drying removes much of their water, giving tubers that miss other markets a saleable outlet in pet food and other products.3,7
- 01 // Source Cull potatoes Small or irregular whole tubers that miss other markets become feedstock for dehydration.
- 02 // Process Sorted and washed A documented granule line removes stones and rejects rotten or sunburned potatoes.
- 03 // Process Cut and cooked That line cuts the potatoes, then blanches and precooks the pieces before drying.
- 04 // Process Flash dried Flash dryers remove moisture so the potato solids can travel and store as a dry ingredient.
- 05 // Output Dried potato The finished ingredient retains tuber protein and minerals alongside its starch, unlike separated potato starch.
What is in it
Composition, dry matter
73
% starch
The average for dried whole tubers. Starch explains why this ingredient contributes calories and helps form kibble.
Why it is in the bag
What the manufacturer gets
-
01
Supplies starch energy
Most of a dried tuber is starch. It supplies calories while other ingredients must provide most of the recipe's protein and fat.3,6
-
02
Helps form kibble
AAFCO identifies potatoes as a plant ingredient that supplies calories and helps kibbles hold together.6
-
03
Uses off-grade crops
Small or irregular potatoes have fewer outlets. Dehydration turns them into a saleable ingredient for pet food and other products, recovering value from the crop.3,4,7
How much One 18-month dog trial used potatoes at 16.4% or 26.4% of the recipe, alongside separately listed potato starch.1
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
Potato supplies usable energy for dogs
Evidence
- Strong
- Some
- Thin
- None
Dried whole tubers average 73.2% starch on a dry matter basis, and AAFCO identifies potatoes as a source of calories and kibble structure. That supports an energy role, without showing a special health benefit.3,6
-
Owners say
Potatoes cause heart disease in dogs
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
A randomized 60-dog, 18-month trial found no clinical DCM in its potato-fed groups. FDA reports cannot show cause. A published critique disputes changes in the trial's pea-rich group, leaving a potato-only cause unproven.1,2,5
-
Brands say
Potato keeps blood sugar low
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
A brand reports a glycemic load of 14 for one finished food, but its page gives no measured glucose response in dogs. That product calculation cannot show that whole dried potato keeps a dog's blood sugar low.8
-
Critics say
Whole dried potato is just filler
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
At about 73% starch, dried potato contributes calories and helps kibble hold together. It has a real job. The useful question is how much potato sits beside the recipe's protein sources.3,6
Straight answers
What owners ask
-
Q01
Is it just filler?
NoIt supplies starch for calories and kibble structure. It is not a major protein or fiber source. If it sits high on the list, check the other starch ingredients nearby to understand the recipe.3,6
-
Q02
Is it potato starch?
NoPotato starch is separated from the tuber. Whole dried potato retains some protein, fiber and minerals as well as starch. Both supply starch, but the names describe different ingredients.3
-
Q03
Should I avoid it over DCM?
Look widerFDA identified a pattern involving diets with potatoes or pulses among the main ingredients, without proving which ingredient matters. Review the whole food, especially if your dog has DCM, rather than judging this line alone.1,5
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
- Chicken Meal 100%
- Dried Peas 100%
- Mixed Tocopherols 100%
- Flaxseed 100%
- Brown Rice 67%
- Brewers Rice 67%
- Poultry Fat 67%
- Pea Protein 67%
- Natural Flavor 67%
- Turkey Meal 67%
- Beef 33%
- Salmon 33%
On the shelf
Foods that list Whole Dried Potato
3 foods in our catalog list it, highest on the label first.
Rachael Ray NutrishRachael Ray Nutrish Grain Free Salmon & Sweet Potato Recipe Dry Dog Food
Rachael Ray NutrishRachael Ray Nutrish Dish Chicken & Brown Rice Recipe with Veggie & Fruit Blend Dry Dog Food
Rachael Ray NutrishRachael Ray Nutrish Dish Beef & Brown Rice with Veggie & Fruit Blend Dry Dog Food Sources
What we read
Checked October 25, 2026.
- 1 Different carbohydrate sources in dog foods supported overall health and cardiac function: an 18-mo prospective study in healthy adult dogs
- 2 Letter to editor regarding different carbohydrate sources in dog foods supported overall health and cardiac function: an 18-month prospective study in healthy adult dogs
- 3 Potato tuber, dried
- 4 Potato (Solanum tuberosum) tubers
- 5 FDA Investigation into Potential Link between Certain Diets and Canine Dilated Cardiomyopathy
- 6 What’s in the Ingredients List?
- 7 The Potato Then & Now: Potato Dehydration
- 8 A potato inclusive diet: high glycemic or not?