Better known as a candy, the licorice herb is one of the most cultivated herbs in the world because of its medicinal properties. Licorice extract (produced by boiling the plant's roots) is 50 times sweeter than sucrose, and is widely used as syrup in OTC expectorants. In appropriate doses, it can be as effective as codeine to treat throat irritations and dry coughs; in large doses, licorice is a laxative.
Widely used in Asia to treat hepatic conditions (hepatitis included), it is also prescribed in China as a remedy for gastric irritation and intestinal ulcers. Research is being conducted in Japan to study the possible use of licorice against the HIV virus. Externally, it can be used to treat skin infections.
Psyllium
Psyllium has a long list of medicinal applications as an antitoxic, antimicrobial, and anti-inflammatory. Since ancient times, it has been used for constipation, to treat irritable bowel syndrome and clean the colon, and as a diuretic. The seed husks of psyllium are widely used in OTC laxatives and fiber supplement products such as Metamucil.
Internally, the herb is astringent, demulcent, and expectorant, and it's used as a remedy to lower cholesterol and control diabetes. Externally, it can be applied as a poultice to treat insect bites, poison ivy rashes, and minor burns.
Marine Algae
Algae may be the oldest natural supplement available, as fossil records indicate they were already around during the Precambrian period, approximately 3 billion years ago.
Algae's major claim to fame is its ability to increase white blood cell count and fight anemia, fatigue, and infections. An excellent source of vitamins, carotenoids, amino acids, and enzymes, algae offer a significant supply of protein for vegetarians. There are four types of algae that are especially nutritious: Spirulina (used as a treatment for obesity), chlorella (high in chlorophyll and antioxidants), Klamath Lake blue-green (high in vitamin B12), and red marine algae (rich in fiber and complex carbohydrates).
All types of algae are used to treat anemia and as an overall health enhancer.