Average nutritional values per 100g of cherimoya flesh
Vitamin C (Ascorbic acid)
Cherimoya are low in fat and sodium, high in fibre, provide iron and niacin, are cholesterol free and are absolutely delicious. When ripe, cherimoya have high sugar levels (1415%) and moderate acidity (0.40.7%).
People in rural Mexico roast, peel and pulverize 1 or 2 seeds into a powder, then mix it with water or milk as a potent emetic (which can be medically used to make you vomit) and cathartic (used as a laxative). The powder, mixed with grease, is also used to kill lice and is applied on parasitic skin disorders. An extract from the boiled-down skin is apparently taken to relieve pneumonia.
In Jamaica, the dried flowers have been used as flavouring for snuff.
The seeds can also be crushed and used as an insecticide.
Studies show the effects from consuming 0.15g of the dark-yellow resin isolated from seeds include dilated pupils, intense photophobia, vomiting, dryness of the mouth, burning in the throat, flatulence, and other symptoms resembling the effects of atropine (the poison from the deadly nightshade plant (Atropa bella-donna)). Blindness can result from the juice of crushed seeds coming in contact with the eyes. Apparently, someone somewhere gave a 0.5g dose to a medium-sized dog for some reason and it caused profuse vomiting.
In Ecuador, pigs eat the fallen fruits, including the seeds, with no side effects. The seeds then pass straight through, intact.
For those of you who may be interested, the seeds contain several alkaloids: caffeine, (+)-reticuline, (-)-anonaine, liriodenine, and lanuginosine. The twigs possess the same alkaloids as the seeds plus michelalbine. The leaves also contain the same alkaloids as the seeds plus (+)-isoboldine, (-)-stepholidine, (+)-corytuberine, (+) nornantenine.