Two forms of vitamin A are available in the human diet: preformed vitamin A (retinol and its esterified form, retinyl ester) and provitamin A carotenoids [1-5]. Preformed vitamin A is found in foods from animal sources, including dairy products, fish, and meat (especially liver).
Rabbit tobacco can be used medicinally in several ways. Smoking the leaves is good for sinusitis, head colds, and congestion. In hot teas, it is used to treat sore throats, fevers, diarrhea, colds, flu, pneumonia, asthma, and coughs, as well as a mild nerve sedative, a diuretic, and an antispasmodic.
Being real chewing tobacco dangers of smokeless tobacco hazards, these carcinogens increase the risk of cancer cancer of the oral cavity, cancer of the pharynx, larynx and esophagus. The association between smokeless tobacco use and cancer is strongest for cancers of the oral cavity.The potent carcinogens found in snuff and chewing tobacco include nitrosamines, polycyclic aromatic hydrocarbons, and radiation-emitting polonium.he association between smokeless tobacco use and cancer is strongest for cancers of the oral cavity. The potent carcinogens found in snuff and chewing tobacco include nitrosamines, polycyclic aromatic hydrocarbons, and radiation-emitting polonium.