Kiwifruit

19 foods contain this ingredient

Fruit

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About Kiwifruit

Kiwifruit is a fresh fruit topper or treat ingredient valued for its vitamin C, potassium, and fiber content, not for protein.

Kiwifruit is sometimes used in pet foods or fresh treats as a fruit inclusion for flavor, soluble fiber and antioxidant micronutrients (notably vitamin C and potassium) rather than as a protein source; note that dogs and cats can synthesize vitamin C so it is not essential in their diets. While its fiber and antioxidant content and the proteolytic enzyme actinidin may offer mild digestive or antioxidant benefits, kiwifruit’s acidity, natural sugars and sorbitol can cause gastrointestinal upset or diarrhea in sensitive animals, and some pets may be allergic or experience oral irritation, so it should be given only in small amounts or avoided in pets with digestive issues.

Derived from: fresh kiwifruit flesh
Primary role: fruit inclusion for fiber and micronutrients

Why it's used

Kiwifruit flesh supplies fiber, potassium, and vitamin C along with the enzyme actinidin, which breaks down proteins and is being studied for its effect on digestion of plant proteins like pea and almond. Its bright color and sweetness also make it a novelty treat topper in fresh-food formats.

Common concerns

Oral irritation Kiwifruit contains tiny needle-shaped calcium oxalate crystals (raphides) plus the proteolytic enzyme actinidin and natural acidity, which together can irritate the lips and mouth if a large amount is eaten at once.
Allergenic potential In humans, actinidin is documented as the major kiwifruit allergen, and kiwi-sensitized individuals can react through cross-reactivity with pollen proteins, a pattern that supports introducing kiwifruit to pets cautiously in small amounts.
Skin and seeds The fuzzy skin is a texture and choking consideration and is typically removed before feeding, with only the flesh offered in small pieces.

Also relevant

Dogs and cats synthesize their own vitamin C, so kiwifruit's vitamin C content is not considered a dietary requirement for them the way it is for humans.

2 sources cited