Know2eat

Kumquats

Citrus japonica

What kumquats has been studied for

1 association assessed — none with dependable human evidence behind them yet. Strongest first.

  • 1 Insufficient
3 things to know first — allergies, interactions and intake limits

About kumquats

A thumb-sized citrus eaten whole, skin and all. The peel is sweet and the flesh sour, which inverts the usual citrus experience and means the flavonoid-rich rind is actually consumed.

Also known as Kumquat, Cumquat, Golden orange

Heart Health

The evidence in depth

Best supported: Insufficient

What each association actually rests on, and the papers behind it. A rating describes the state of the research, not how impressive the food is. How we rate evidence.

Blood lipid profile

Heart Health
Insufficient evidence

Kumquat has not been tested in humans for lipid or any other health outcome. The interest in it rests on peel flavonoid content measured in the laboratory.

Insufficient evidence. Not enough human research to say anything useful yet.

1 source

Deep research mode adds each paper’s own conclusion and stated limitations.

Ask about Kumquats

Ask about Kumquats

Answers are written only from the entries on this page — the same nutrients, compounds, claims and citations you can read above. Nothing is added from outside the database, and every answer lists what it was built from.

AI explanations are not switched on for this site, so there is nothing to ask here. Everything above is read straight from the database and does not need them.

Key nutrients

Nutrient content per 100 grams
NutrientAmount% DV
Macronutrients
Calories71 kcal4%
Protein1.88 g4%
Total fat0.86 g1%
Carbohydrate15.9 g6%
Fibre6.5 g23%
Total sugars9.36 g—
Water80.8 g—
Fats
Saturated fat0.103 g1%
Monounsaturated fat0.154 g—
Polyunsaturated fat0.171 g—
Cholesterol0 mg0%
EPA (omega-3)0 g—
DHA (omega-3)0 g—
DPA (omega-3)0 g—
Linoleic acid (omega-6)0.124 g—
Vitamins
Vitamin A15 µg2%
Vitamin C43.9 mg49%
Vitamin D0 µg0%
Vitamin E0.15 mg1%
Vitamin K0 µg0%
Thiamin (B1)0.037 mg3%
Riboflavin (B2)0.09 mg7%
Niacin (B3)0.429 mg3%
Pantothenic acid (B5)0.208 mg4%
Vitamin B60.036 mg2%
Folate17 µg4%
Vitamin B120 µg0%
Choline8.4 mg2%
Minerals
Calcium62 mg5%
Iron0.86 mg5%
Magnesium20 mg5%
Phosphorus19 mg2%
Potassium186 mg4%
Sodium10 mg0%
Zinc0.17 mg2%
Copper0.095 mg11%
Manganese0.135 mg6%
Selenium0 µg0%
Other measured compounds
Beta-carotene0 µg—
Alpha-carotene155 µg—
Lycopene0 µg—
Lutein + zeaxanthin129 µg—
Caffeine0 mg—
Ash0.52 g—

Nutrient values are per 100 g of the USDA reference entry named on this page and vary with variety, growing conditions, storage and preparation.

Source record: Kumquats, raw (USDA FoodData Central, FDC ID 168154).

% DV uses the FDA Daily Values for adults and children aged 4 and over. A dash means no Daily Value has been established for that nutrient.

Bioactive compounds

Compounds present in meaningful amounts. Presence is banded rather than quantified, because whole-food levels vary enormously with variety, growing conditions, storage and preparation.

How preparation changes things

Only effects with real support are listed. If a preparation method is missing, it is because nothing dependable is documented — not because it makes no difference.

Nothing dependable is recorded about how preparation changes this food’s nutritional properties. Rather than guess, this section stays empty.

Things to know

Allergies, interactions and intake concerns. Every food gets this section — a reference where everything is uniformly good is not a reference.

  • Worth knowing

    Peel means pesticide residue matters more

    Because the skin is eaten, any surface residue is eaten with it. Washing is more consequential for kumquats than for citrus that gets peeled.

  • Worth knowing

    Acid erosion of tooth enamel

    The flesh is markedly acidic and the fruit is usually eaten several at a time, which extends the acid contact with enamel.

  • Allergy

    Citrus peel oil reactions

    Contact reactions and oral symptoms from citrus peel oils are reported more often than reactions to citrus flesh, and kumquats deliver a lot of peel.