Cherimoya and Cancer: What the Research Actually Says

Short answer: No, cherimoya doesn’t treat or prevent cancer. Compounds called acetogenins, found mainly in its seeds, leaves and roots, kill cancer cells in lab dishes, but no study has tested cherimoya in people with cancer. The same compounds are a suspected nerve toxin, so cherimoya extracts, seed products and “Annona” cancer supplements should be avoided. The ripe fruit itself is a healthy food in normal amounts.

Cherimoya (Annona cherimola) is a heart-shaped green fruit from the Andes of Ecuador, Peru and Bolivia, now grown in Spain, California, Chile and other mild climates. Its creamy white flesh tastes like a blend of banana, pineapple and vanilla custard. It belongs to the same plant family as soursop (graviola), sugar apple and pawpaw, and that family has a long online history of “natural cancer cure” claims.

This page looks at cherimoya for cancer honestly: what the lab research found, why it doesn’t mean the fruit fights cancer, the safety concerns about acetogenins, and what cherimoya genuinely offers as a food. For more fruit guides, see our fruits section.

Cherimoya at a glance

Calories: 75 per 3.5 oz (100 g); 120 per cup
Best source of: Vitamin B6, vitamin C, fiber
Taste: Sweet and creamy, like banana, pineapple and custard
Season: Roughly November to May from California; imported at other times
Cancer evidence: Lab and animal studies only; no human trials
Don’t eat: The seeds or the skin

Cherimoya and cancer: what the research actually found

All of the cancer research on cherimoya has been done in test tubes or animals. Most of it uses concentrated extracts of the seeds, leaves, stems or roots, not the fruit people eat. Each finding below carries an evidence label, explained in our editorial policy.

Acetogenins are toxic to cancer cells in lab tests Limited evidence

Plants in the Annona family make a group of compounds called annonaceous acetogenins. Scientists have isolated dozens of them from cherimoya roots, seeds, stems and leaves. In lab dishes, they block the energy-producing part of cells (complex I of the mitochondria), and cancer cells, which burn energy fast, are especially sensitive. A 2021 review of cherimoya acetogenins found the research consisted of cell experiments, enzyme tests and animal models, with no human clinical trials.

Seed extract and leukemia cells Limited evidence

One of the more detailed studies tested an alcohol extract of cherimoya seeds on leukemia cells.

What the research actually found

What: An ethanol extract of cherimoya seeds
Tested on: Three types of acute myeloid leukemia cells grown in a dish, plus healthy rat stem cells for comparison
Result: The extract slowed the growth of the leukemia cells and triggered their self-destruction (apoptosis); the healthy cells were affected less
Caveat: Lab cells only. The authors note that cherimoya seeds are known to be toxic and that they couldn’t measure the acetogenins in their extract

A result in a dish is the very first step in drug research, and most compounds that work at this stage fail later because they’re too toxic or don’t reach tumors in the body. Read the study.

Tumor studies in mice Limited evidence

Some purified acetogenins have shrunk human tumors implanted in mice. These studies used isolated compounds at controlled doses, often injected, which is very different from eating a fruit. None has led to an approved cancer drug.

Why lab results don’t carry over to the fruit

It’s easy to jump from a lab result to a treatment claim, but the gap is enormous.

Wrong part of the plant: the acetogenin research mostly uses seeds, roots and leaves. The ripe flesh you eat has far smaller amounts.
Wrong dose and route: cells in a dish are bathed directly in the compound. When you eat it, very little is absorbed: one study estimated that only about 3% of annonacin, a common acetogenin, gets into the body.
Many things are toxic to cells in a dish: bleach and alcohol are too. What matters is whether a substance works safely in the human body, and that has never been shown for cherimoya.

Relying on alternative remedies instead of medical treatment is dangerous. In a US study of people with common cancers, those who chose alternative medicine alone were about 2.5 times more likely to die over the study period than those who had conventional treatment.

The FDA regularly warns companies that sell herbal products with cancer claims. If a website, seller or social media post says cherimoya, soursop or graviola “cures” or “fights” cancer, treat that as a red flag.

The safety concern: acetogenins and the nervous system

The compounds that are toxic to cancer cells in lab tests can also damage nerve cells. That’s the main reason not to take concentrated Annona products.

The Guadeloupe findings: doctors on the Caribbean island of Guadeloupe found an unusually high rate of atypical parkinsonism, a Parkinson’s-like brain disorder. Most patients had eaten a lot of soursop fruit and herbal teas made from Annona leaves. This is an association, not proof, but it led to years of research into acetogenins.
Animal studies: annonacin given to rats by injection for a month caused damage in brain regions involved in movement.
Cherimoya products: researchers found more than 80 acetogenins, at low levels, in a commercial alcoholic drink made from cherimoya. They concluded that cherimoya should be considered a possible risk factor in food toxicity.
Seeds: cherimoya seeds contain much higher levels than the flesh and are considered toxic.

There’s no evidence that eating ripe cherimoya flesh now and then harms healthy people. The concern is with large, regular amounts, and especially with extracts, teas made from leaves or seeds, and supplements that concentrate these compounds.

Cherimoya nutrition facts

The table shows raw cherimoya flesh, without skin or seeds, from USDA data.

Cherimoya, raw nutrition facts
Nutrient	Per 3.5 oz (100 g)	Per 1 cup, pieces (160 g)	% DV per 1 cup, pieces
Calories	75	120	–
Protein	1.6 g	2.5 g	5%
Total fat	0.68 g	1.1 g	1%
Saturated fat	0.23 g	0.37 g	2%
Cholesterol	0 mg	0 mg	0%
Carbohydrates	18 g	28 g	10%
Fiber	3 g	4.8 g	17%
Total sugars	13 g	21 g	–
Sodium	7 mg	11 mg	<1%
Potassium	287 mg	459 mg	10%
Calcium	10 mg	16 mg	1%
Iron	0.27 mg	0.43 mg	2%
Magnesium	17 mg	27 mg	6%
Phosphorus	26 mg	42 mg	3%
Zinc	0.16 mg	0.26 mg	2%
Copper	0.07 mg	0.11 mg	12%
Manganese	0.09 mg	0.15 mg	6%
Vitamin C	13 mg	20 mg	22%
Vitamin E	0.27 mg	0.43 mg	3%
Thiamin (B1)	0.1 mg	0.16 mg	13%
Riboflavin (B2)	0.13 mg	0.21 mg	16%
Niacin (B3)	0.64 mg	1 mg	6%
Vitamin B6	0.26 mg	0.41 mg	24%
Folate (DFE)	23 mcg	37 mcg	9%

Source: USDA FoodData Central — Cherimoya, raw (SR Legacy, FDC ID 173953). % Daily Value (DV) uses FDA values for a 2,000-calorie diet.

A cup of cherimoya has about 120 calories and nearly 5 g of fiber. It gives a quarter of your daily vitamin B6 and a fifth of your vitamin C, plus useful riboflavin, thiamin and potassium. It’s sweeter than most fruits, with about 21 g of natural sugar per cup.

What cherimoya is genuinely good for

Cherimoya’s real benefits come from nutrients that are measured and well understood.

Helps you meet your vitamin B6 needs Strong evidence

One cup gives 24% of the Daily Value for vitamin B6. Your body needs B6 to process protein, make red blood cells and keep your nervous and immune systems working normally.

Adds fiber to your diet Strong evidence

With 4.8 g per cup (17% of the Daily Value), cherimoya has more fiber than many fruits. Diets high in fiber are linked with healthier digestion and a lower risk of heart disease and type 2 diabetes. Most adults fall well short of their fiber target.

Supplies vitamin C and potassium Strong evidence

A cup gives about 22% of your vitamin C, which your body uses to make collagen and absorb iron from plant foods, and 10% of your potassium, which helps control blood pressure.

How does cherimoya compare with other fruits? See its full nutrition label by the cup, by the fruit or by the gram in our USDA-based tool.

Food nutrition lookup

Who should be careful

People with cancer: don’t use cherimoya, soursop or graviola extracts, teas or supplements as a treatment, and tell your cancer team about any supplement you take. Some herbal products can affect how cancer drugs work.
People with Parkinson’s disease or other movement disorders: avoid Annona extracts, leaf teas and supplements, given the suspected link between acetogenins and parkinsonism. Ask your neurologist about the fruit.
Everyone: never eat, chew, crush or blend the seeds, and don’t eat the skin.
Pregnancy and breastfeeding: the ripe flesh is a normal food, but avoid Annona supplements and leaf or seed teas, which haven’t been tested for safety.
Young children: the large, hard seeds are a choking hazard. Remove them before serving.
Diabetes: cherimoya is high in natural sugar, so count it as part of your carbohydrate for the meal.

How to choose and eat cherimoya safely

Look for cherimoya in US stores mainly from late fall to spring, when California fruit is in season. Choose fruit that’s heavy for its size, with green skin and no large black patches or cracks.

Ripening: cherimoya is usually sold firm. Leave it at room temperature until it gives slightly when pressed, like a ripe avocado, usually in two to four days. The skin may darken a little.
Storing: once ripe, refrigerate it and eat it within a day or two. Don’t refrigerate unripe fruit, or it won’t ripen properly.
Eating: cut it in half and scoop out the flesh with a spoon, or peel and cut it into chunks. Pick out every black seed as you go.

Tip: making a smoothie or sorbet? Remove the seeds completely before blending. A blender can crack them and release the bitter, toxic compounds into your drink.

Cherimoya is best eaten chilled with a spoon. It also works in fruit salads, smoothies, sorbets and as a topping for yogurt.

If you have cancer

Eating well during and after cancer treatment matters, and fruits like cherimoya can be part of that. But food works alongside treatment, never instead of it. Before you add any supplement, extract or herbal tea, check with your oncologist, nurse or a registered dietitian who works with cancer patients.

For trustworthy information in the US, contact the National Cancer Institute’s Cancer Information Service at 1-800-422-6237 (1-800-4-CANCER). In the UK, Cancer Research UK’s nurses can be reached on 0808 800 4040.

Cherimoya and cancer FAQ

What does the research say about cherimoya and cancer?

Extracts of cherimoya seeds, leaves and roots are toxic to cancer cells in lab dishes, but no study has tested cherimoya in people with cancer. There’s no evidence that eating the fruit changes cancer risk or outcomes.

Is cherimoya the same as soursop or graviola?

No, but they’re close relatives in the Annona family. Soursop (Annona muricata) is also called graviola, and it’s the fruit most often marketed with cancer claims. Both contain acetogenins.

Are cherimoya seeds poisonous?

Yes. The seeds contain high levels of acetogenins and are considered toxic. Swallowing a whole seed by accident is unlikely to cause harm, but never chew, crush or blend them.

Is it safe to eat cherimoya every day?

Eating ripe cherimoya flesh as part of a varied diet is considered safe for most people. Because of the questions about acetogenins, it’s sensible to enjoy it as an occasional fruit rather than in large daily amounts, and to avoid extracts and supplements.

Is cherimoya the same as custard apple?

The names get mixed up. “Custard apple” can mean cherimoya, but it often refers to a related fruit, Annona reticulata. Check the botanical name if you’re buying online.