Kiwi

Kiwi

The vitamin C-rich tropical fruit

Fruits

Actinidia deliciosa

Origin: China, cultivated in New Zealand

#vitamin-c#dna-repair#sleep-aid#digestive-enzyme#superfruit

✔ Source of fibre✔ Fat-free✔ Low sodium

What is this ingredient?

Kiwi (Actinidia deliciosa) is a small fruit with exceptionally high nutrient density. Gram for gram, kiwi contains more vitamin C than orange (93mg vs 53mg per 100g). What makes kiwi unique is the combination of vitamins C, E and polyphenols that together help repair DNA damage - studies show significant reduction in oxidative DNA damage after 3 weeks of daily kiwi consumption. Kiwi also contains actinidin, a protein-digesting enzyme that improves digestion of meat and dairy. Recent research shows that 2 kiwis an hour before bed significantly improves sleep quality. The golden kiwi (SunGold) contains even more vitamin C and is sweeter.

How does it taste?

Vibrant sweet-tart with a tropical freshness and mildly tangy edge.

Pairs well with:

Pairs well with strawberrybananamintyoghurt and passion fruit.

Varieties

Green Kiwi (Hayward)

Most common, fuzzy skin, tangy-sweet

Golden Kiwi (SunGold)

Smooth skin, sweeter, even more vitamin C

Kiwi Berry

Mini kiwi, edible skin, grape-sized

Did you know...?
  • The kiwi originally comes from China where it was called 'Chinese gooseberry'; New Zealand renamed it.
  • The new name 'kiwi' was chosen in 1959 due to its resemblance to the kiwi bird.

Nutritional Value & Energy

Per 100g

Kiwi provides energy thanks to natural nutrients , buffered by fiber.

61 kcal (255 kJ)
3g Fiber

1.1gProtein
15gCarbs
0.5gFat
9gSugar
3mgSodium

Per 100g

Minerals

0.3mg Iron 34mg Calcium 0.1mg Zinc 17mg Magnesium 312mg Potassium 1mcg Iodine 0.2mcg Selenium

Vitamins

5mcg Vitamin A 0.04mg Vitamin B6 0.0mcg Vitamin B12 93mg Vitamin C 1.5mg Vitamin E 50mcg Vitamin K 25mcg Folate

Omega-3 fatty acids

0mg DHA 0mg EPA
More nutrients

B-Vitamins

0.02mg Riboflavin (B2) 0.3mg Niacin (B3) 0.19mg Pantothenic Acid (B5) 1.3mcg Biotin (B7)

Trace Minerals

0.13mg Copper 0.07mg Manganese 33mg Phosphorus

What's in a serving?

1 serving

Calcium a little 6%
Iron a small amount 3%
Magnesium a little 7%
Vitamin C very much 291%

Kiwi naturally contains vitamin c (155 mg per 100 g).

Vitamin E very much 125%

Kiwi naturally contains vitamin e (10 mg per 100 g).

Vitamin K very much 100%

Kiwi naturally contains vitamin k (50 mcg per 100 g).

Folate good 19%

% of daily reference intake (DRI)

EU-approved nutrition claims
✔ EFSA claims via nutrients

This ingredient contains nutrients for which EFSA-authorized health claims exist (at nutrient level, not ingredient-specific).

Approved health claims (EU)

Vitamin_c EU 432/2012

Vitamin C contributes to the normal function of the immune system

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to the reduction of tiredness and fatigue

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal collagen formation for the normal function of skin

Contains 93mg/100g (threshold: ≥12mg/100g)

Potassium EU 432/2012

Potassium contributes to the maintenance of normal blood pressure

Contains 312mg/100g (threshold: ≥300mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal collagen formation for the normal function of blood vessels

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal collagen formation for the normal function of bones

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal collagen formation for the normal function of cartilage

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal collagen formation for the normal function of gums

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal collagen formation for the normal function of teeth

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal energy-yielding metabolism

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal functioning of the nervous system

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to normal psychological function

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to the protection of cells from oxidative stress

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to the regeneration of the reduced form of vitamin E

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C increases iron absorption

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_c EU 432/2012

Vitamin C contributes to maintain the normal function of the immune system during and after intense physical exercise

Contains 93mg/100g (threshold: ≥12mg/100g)

Vitamin_k EU 432/2012

Vitamin K contributes to normal blood clotting

Contains 50mcg/100g (threshold: ≥11.25mcg/100g)

Vitamin_k EU 432/2012

Vitamin K contributes to the maintenance of normal bones

Contains 50mcg/100g (threshold: ≥11.25mcg/100g)

Potassium EU 432/2012

Potassium contributes to normal functioning of the nervous system

Contains 312mg/100g (threshold: ≥300mg/100g)

Potassium EU 432/2012

Potassium contributes to normal muscle function

Contains 312mg/100g (threshold: ≥300mg/100g)

Comparison

vssinaasappel

Kiwi contains about 3× more vitamin C per 100g than orange.

What's being researched?
Digestive

Actinidin and digestion

Actinidin, a protease in kiwi, is being studied for effects on protein digestion and gut motility. Clinical studies show promising results for functional constipation.

Supported by: [3] Montoya CA (2014) , [4] Chang (2010)

Immune

Vitamin C and immune support

The very high vitamin C content in kiwi is being studied in relation to immune function. Clinical studies show improved immune markers, particularly in populations with suboptimal vitamin C status.

Supported by: [1] Collins BH (2001)

Other

Serotonin and sleep research

Serotonin in kiwi is being studied for potential effects on sleep quality. Small clinical studies show promising results for sleep onset and sleep duration.

Supported by: [2] Lin (2011)

Good Combinations (Synergy)

Combine kiwi smartly to enhance the effect:

Absorption 3×
Kiwi Kiwi Dried Apricots Dried Apricots

Vitamin C increases iron absorption from apricots 3x

Technical: Dried apricots contain 3mg non-heme iron per 100g — concentrated through the drying process. This iron is in Fe³⁺ form with low bioavailability (5-12%). Kiwi (93mg vitamin C per 100g) and orange (53mg) reduce Fe³⁺ to Fe²⁺ recognized by DMT1 transporters in the intestinal wall. Absorption increases by 300% or more.

What does this mean for you? Combine dried apricots with fresh fruit as a snack — a few apricots with a kiwi or an orange. This is one of the simplest ways to better absorb plant-based iron, ideal for vegetarians and fatigue from iron deficiency.

Absorption 4×
Kiwi Kiwi Beluga Lentils Beluga Lentils

Kiwi's vitamin C makes the iron from lentils much more absorbable

Vitamin C overcomes phytate inhibition of iron absorption (PMID: 2507689)

Technical: Lentils are an iron powerhouse (6-8mg per 100g cooked), but also contain phytate that blocks iron absorption. Kiwi's extremely high vitamin C (93mg/100g) overcomes this problem: it reduces Fe³⁺ to Fe²⁺ and forms soluble chelates that bypass phytate binding. The combination increases iron absorption by 300-600%.

What does this mean for you? Eat a kiwi as dessert after your lentil soup or salad. This is a simple trick to get much more iron from your meal — without supplements. Ideal if you eat vegetarian or often feel tired.

Absorption 4×
Kiwi Kiwi Green Lentils Green Lentils

Kiwi's vitamin C makes the iron from lentils much more absorbable

Vitamin C overcomes phytate inhibition of iron absorption (PMID: 2507689)

Technical: Lentils are an iron powerhouse (6-8mg per 100g cooked), but also contain phytate that blocks iron absorption. Kiwi's extremely high vitamin C (93mg/100g) overcomes this problem: it reduces Fe³⁺ to Fe²⁺ and forms soluble chelates that bypass phytate binding. The combination increases iron absorption by 300-600%.

What does this mean for you? Eat a kiwi as dessert after your lentil soup or salad. This is a simple trick to get much more iron from your meal — without supplements. Ideal if you eat vegetarian or often feel tired.

Absorption 4×
Kiwi Kiwi Red Lentils Red Lentils

Kiwi's vitamin C makes the iron from lentils much more absorbable

Vitamin C overcomes phytate inhibition of iron absorption (PMID: 2507689)

Technical: Lentils are an iron powerhouse (6-8mg per 100g cooked), but also contain phytate that blocks iron absorption. Kiwi's extremely high vitamin C (93mg/100g) overcomes this problem: it reduces Fe³⁺ to Fe²⁺ and forms soluble chelates that bypass phytate binding. The combination increases iron absorption by 300-600%.

What does this mean for you? Eat a kiwi as dessert after your lentil soup or salad. This is a simple trick to get much more iron from your meal — without supplements. Ideal if you eat vegetarian or often feel tired.

Absorption 5×
Kiwi Kiwi Spinach Spinach

Vitamin C from kiwi increases iron absorption from spinach up to 6x

Vitamin C significantly increases non-heme iron absorption (PMID: 2507689)

Technical: Kiwi contains 93mg vitamin C per 100g (155% RDI) — more than orange! Spinach contains 2.7mg non-heme iron per 100g, but this iron (Fe³⁺) is poorly absorbed (only 2-10%). Vitamin C reduces Fe³⁺ to Fe²⁺, the form your gut can absorb. Studies show 3-6x higher iron absorption when combined with vitamin C.

What does this mean for you? Add kiwi to your spinach salad or smoothie. One kiwi with 100g spinach can double to quadruple your iron absorption. Perfect for vegetarians, menstruating women, or anyone fatigued from low iron levels.

Recipes with Kiwi

Discover delicious recipes featuring kiwi:

Kiwi Banana Shake 5 min Creamy evening shake with kiwi, banana, yogurt and coconut milk 285 kcal 10g protein 2 synergies
In the Kitchen

Storage

Location:Refrigerator

Shelf life:1-2 weken in koelkast, 4-5 dagen op kamertemperatuur

Hard kiwis ripen at room temperature. Speed ripening: place next to banana or apple. Ripe when soft with gentle pressure.

Preparation

EAT RAW for maximum enzymes and vitamin C. Cut in half and scoop out. PRO-TIP: the skin is edible and contains 3x more fiber! After meals for protein digestion.

Conversions

76g= 1 piece

Substitutes

ananas 1:1 Similar enzyme (but stronger)

Smart preparation

1Halve a kiwi and scoop out the flesh with a tablespoon.

2Don't use kiwi in dairy dishes that need to set.

Why?

The enzyme actinidin in kiwi breaks down proteins and prevents setting.

3The skin of a golden kiwi is edible if you wash it well.

Caution / Warnings

Kiwi is very safe, but there are scientific considerations:

Kiwi Allergy Severe

Kiwi is a common allergen, especially with latex allergy (cross-reaction)

Advice:

With known latex allergy: test small amount first. Symptoms: tingling mouth, swelling, itching

Blood Thinners Moderate

Kiwi contains significant vitamin K

Advice:

With warfarin use: eat consistent amounts

Traditional use

Traditional Chinese Medicine

Chinese wild berry (mihoutao)

The kiwi is originally a Chinese wild berry (mihoutao, 'monkey peach') that has been described in China for over 700 years as a digestion-promoting fruit.

Summary

Kiwi is a multitasker: more vitamin C than orange, proven DNA repair, sleep improvement and protein digestion. Eat 2 kiwis 1 hour before bed for better sleep. Pro-tip: eat the skin too (wash well) for 3x more fiber! Golden kiwi is even sweeter and higher in vitamin C.

Scientific Sources [1] Collins BH, Horská A, Hotten PM, et al. (2001) Kiwifruit protects against oxidative DNA damage in human cells and in vitro. Nutrition and cancer Effects of kiwifruit consumption on DNA damage and oxidative stress Review PMID: 11588897 [2] Lin, H. H., et al. (2011) Effect of kiwifruit consumption on sleep quality in adults with sleep problems Asia Pacific Journal of Clinical Nutrition Effect of kiwifruit consumption on sleep quality in adults with sleep problems Human intervention PMID: 21669584 [3] Montoya CA, Rutherfurd SM, Olson TD, et al. (2014) Actinidin enhances gastric and duodenal protein digestion The British journal of nutrition Actinidin enhances gastric and duodenal protein digestion Review PMID: 24252432 [4] Chang, C. C., et al. (2010) Kiwifruit improves bowel function in patients with irritable bowel syndrome with constipation Asia Pacific Journal of Clinical Nutrition Kiwifruit improves bowel function in patients with irritable bowel syndrome with constipation Human RCT PMID: 21147704

This information is intended for educational purposes and does not replace medical advice. Consult a doctor or dietitian for personal advice.