5. Castor oil
Castor oil is widely used in food items and medicines. It is a perfection remedy for wrinkles, hair loss, removing corns and other skin problems. It is also used along with candies, chocolates and other foods for children.
Castor oil is carefully prepared from castor beans by pressing them. But it is to be keep in mind that castor beans contain recin which is too poisonous. Castor oils are prepared in factors with that much care by taking many precautions. The better thing you have to do is avoid handling of castor beans.
The castor seed contains ricin, a toxic protein. Heating during the oil extraction process denatures and deactivates the protein. However, harvesting castor beans may not be without risk. Allergenic compounds found on the plant surface can cause permanent nerve damage, making the harvest of castor beans a human health risk. India, Brazil, and China are the major crop producers, and the workers suffer harmful side effects from working with these plants. These health issues, in addition to concerns about the toxic byproduct (ricin) from castor oil production, have encouraged the quest for alternative sources for hydroxy fatty acids. Alternatively, some researchers are trying to genetically modify the castor plant to prevent the synthesis of ricin.
While castor oil is sometimes used to induce labor in full-term pregnancies (scientific evidence of its effectiveness is lacking), consuming castor oil to treat constipation is not considered safe in pregnancies that are not at full term yet, since it may cause contractions of the womb.