Tomatoes

Tomatoes come from produce harvests. Fruit that misses sale standards enters some feed markets, while ingredient suppliers also dry prepared tomatoes for pet foods. The name on a bag does not identify which route supplied its recipe.^3,5,7

1. 01 // Source Tomato harvest Fruit from a tomato crop may be sold fresh, processed for people or diverted into feed channels.
2. 02 // Process Prepare fruit One pet food ingredient supplier sorts, washes, cores and trims tomatoes before drying them.
3. 03 // Process Optional drying That supplier spray dries the prepared fruit and mills it into powder for pet food applications.
4. 04 // Output Tomato ingredient Fresh fruit enters feed channels and powder is sold for pet food, but a bag may not disclose which form it uses.

1. 01

   Adds tomato color and taste

   Lycopene gives tomatoes their red color, and tomato material brings its characteristic taste. A supplier sells spray-dried tomato powder for pet food, but that does not show how much a recipe uses.^7,8

2. 02

   Supports a produce claim

   One brand promotes tomato fiber, vitamins and lycopene on its product page. Its ingredient list gives no tomato amount, so those claims cannot tell an owner the nutritional contribution.^5,8

3. 03

   Finds a use for surplus

   Cull fruit that misses produce standards enters feed markets. Fresh tomatoes spoil quickly and cost more to transport because of their water; drying offers suppliers another route. A bag does not reveal its source.^3,7

How much No standard tomato inclusion rate is published in these sources; an ingredient list gives order, not the tomato percentage.⁵

1. Brands say

   Tomato fiber improves a dog's digestion

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   Fresh-fruit samples contained 24 to 37.1% neutral detergent fiber on a dry basis. A brand promises better digestion, but those composition figures are not a dog feeding trial or evidence of a benefit at its undisclosed inclusion rate.^2,5,8

2. Brands say

   Lycopene in tomatoes protects dogs from disease

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   In a 28-day study, 6 dogs absorbed purified lycopene. Researchers measured blood and tissue levels, not disease prevention. The study did not feed tomatoes or test a dog food amount.^1,8

3. Owners say

   Tomatoes in dog food are poisonous

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   ASPCA's plant-toxicity listing calls ripe fruit non-toxic. Feedipedia places tomatine in unripe fruit and green plant parts. Neither source supports treating ripe tomato fruit used in food as poisonous.^3,6

4. Brands say

   Tomato vitamins strengthen dogs' immunity

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   A brand credits tomato vitamins with immune benefits, yet lists tomato only within a vegetable mix and gives no tomato amount. Its product page reports no dog feeding trial measuring an immune response to that ingredient.^5,8

5. Critics say

   Tomatoes are just filler

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   Fresh tomatoes contain carbohydrates and fiber, and suppliers sell dried tomato for pet food use. The exact contribution depends on preparation and amount, which the ingredient list does not disclose. Calling every tomato inclusion useless goes beyond that evidence.^2,3,5,7