Mango: Nutrients, What Research Shows and Safety

Mango is the fruit of the tree Mangifera indica, in the cashew family (Anacardiaceae). The sweet orange flesh is eaten fresh, frozen, dried or as juice; the skin and the large stone are not usually eaten. People eat it for its taste, vitamin C and fiber. This page keeps the whole fruit apart from supplements and from hype, and says what the research does and does not show.

Read this first

• Mango is an everyday food, but allergy is possible. For trouble breathing or swelling of the face, lips or throat, call 911. See food allergy basics and emergency signs.
• The skin and sap contain compounds related to the allergen in poison ivy. People who have had poison ivy rashes can get an itchy rash from handling mango skin; the flesh seems to carry little of it. [5]
• Mango has natural sugar (about 22 g in one cup, USDA). A few small trials in people with prediabetes or type 2 diabetes did not show harm to blood sugar, but they are small. People on diabetes medicines should ask their care team. [1][4][6]
• Evidence summary: eating mango gives vitamin C and some fiber. Claims for blood sugar, gut and blood vessels come from a handful of small, short trials.

What is in it (USDA values)

Source: USDA FoodData Central, "Mangos, raw" (SR Legacy) [1]. Household portions in USDA: 1 cup pieces (165 g); 1 fruit without refuse (336 g). % Daily Value uses the FDA 2016 Daily Values; values vary with variety, ripeness and storage.

USDA also lists beta-carotene (640 µg per 100 g), the yellow-orange pigment the body can turn into vitamin A, and small amounts of lutein and zeaxanthin. [1] Mango peel and flesh also contain polyphenols such as mangiferin; most of what we found on these is laboratory work on peel extracts, not human trials. [2]

What research says

Observational findings and a nutrient being present in a food are not proof that eating the food prevents or treats a disease. Several of the mango trials above are small, short and used different comparators (bread, a granola bar, low-fat cookies). We did not find a large trial or a regulator statement supporting a disease claim for mango: Proper evidence not found in the sources we read.

Eaten as food vs taken as a supplement or extract. The human trials above used fresh or whole mango. Mango peel, seed or leaf extracts, mangiferin products and powders are different products; the studies we found on them were mostly laboratory studies. [2] Results for one form do not carry over to another.

How much is a normal serving

• The USDA household portion in our data is 1 cup of pieces (165 g). [1] This is information, not a prescription.
• In the UK, the NHS counts 80 g of fresh, canned or frozen fruit as one portion, and 30 g of dried fruit as one portion; fruit juice and smoothies count as at most one portion a day (150 ml). [10]
• We did not find a source we read that compares fresh, frozen and dried mango for health outcomes. Dried mango is more concentrated in sugar by weight because the water is removed (a general fact about drying, not a mango trial). Check labels for added sugar. See fruit juice vs whole fruit and fresh, frozen and canned produce.

Safety, allergy and medicines

• Skin reaction (contact dermatitis). Mango skin and sap contain compounds that overlap with urushiol, the poison ivy allergen. Case reports describe a delayed itchy rash in people who had earlier poison ivy rashes, after handling mango. The authors of one case report say the allergens seem minimal in the flesh, and a person who reacts may still eat mango if someone else peels it. They suggest rinsing exposed skin with cold soapy water soon after contact. [5]
• True food allergy. Mango allergy is described in the literature, including a 2026 case report of exercise-triggered anaphylaxis to mango. [11] Symptoms can include itching, hives, swelling, wheezing or stomach upset. Call 911 for trouble breathing or swelling of the lips, tongue or throat; the NHS gives the same advice (999 in the UK) and says to use an adrenaline injector straight away if one is available. [12]
• Itchy mouth after raw fruit. Pollen food allergy (oral allergy syndrome) causes an itchy mouth and throat with some raw fruit and is usually not serious, according to the NHS. [12] We did not find a source we read that confirms mango as a common trigger.
• Sugar and diabetes. One cup has about 22 g of sugars (USDA). [1] The small trials above did not report harm to blood sugar in the groups studied, but they cannot tell any one person how mango will affect them. People on insulin or tablets for diabetes should ask their care team about portions. See foods for blood sugar control.
• FODMAPs and bloating. Monash University's guidance lists mango among fruits high in excess fructose, a FODMAP that can trigger symptoms in some people with irritable bowel syndrome. [13] Portion limits should be checked in the Monash app; we did not verify a number.
• Medicines. We did not find a source we read describing a medicine interaction with mango as a food, so we make no claim either way. A pharmacist can check: see foods and medicine interactions.
• Potassium and kidney disease. One cup gives about 277 mg of potassium, 6% of the Daily Value (USDA), a modest amount. [1] People with advanced kidney disease follow their own limits: see foods, kidney disease, potassium and oxalates.
• Pregnancy. We did not find a mango-specific caution in the sources we read. See foods in pregnancy.
• Too much vitamin C. The NHS says doses over 1,000 mg a day (from supplements) may cause stomach pain and diarrhoea; mango as food gives far less. [3]

Choosing, storing and food safety

• Wash fruit under running water before cutting; do not use soap, detergent or produce wash. Washing the skin matters because a knife can carry skin germs into the flesh. [14]
• Refrigerate cut or packaged fruit and keep perishable produce at 40 °F (4 °C) or below. [14]
• A 2026 laboratory study found Salmonella can grow in both the rind and the pulp of mango across a wide range of temperatures, so cut mango should not sit out warm. [15]

Related pages

• Fruit juice vs whole fruit
• Fresh, frozen and canned produce
• Food allergy basics and emergency signs
• Foods for blood sugar control
• Foods and medicine interactions
• Polyphenols and flavonoids in foods