Seed when castor beans have been ingested by animals. In addition, seeds containing amygdalin—apple, apricot, bitter almond, peach, plum, cherry, quince, and others—when consumed in sufficient amounts, may cause cyanide poisoning. Other seeds that contain poisons include annona, cotton, custard apple, datura, uncooked durian, golden chain, horse-chestnut, larkspur, locoweed, lychee, nectarine, rambutan, rosary pea, sour sop, sugar apple, wisteria, and yew. The seeds of the strychnine tree are also poisonous, containing the poison strychnine. The seeds of many legumes, including the common bean ("Phaseolus vulgaris"), contain proteins called lectins which can cause gastric distress if the beans are eaten without cooking.
Blackcurrant seed oil Blackcurrant seed oil Blackcurrant seed oil is derived from the seeds of "Ribes nigrum" (black currant, or European currant). It contains an unusually high amount of omega-6 (15–20 percent) as well as a high amount of omega-3 fatty acids (12–14 percent). It also contains linoleic acid as well as 2–4 percent stearidonic acid. There are some indications that blackcurrant seed oil is anti-inflammatory and cardioprotective. In European folk medicine, black currant once had a considerable reputation for controlling diarrhea, promoting urine output (as a diuretic) and reducing arthritic and rheumatic pains. It is primarily used medicinally and as a diet