Common Cold : Supplements

The common cold is a viral infection of the upper respiratory system, which includes the nose, throat, sinuses, eustachian tubes, trachea, larynx, and bronchial tubes. Although more than 200 different viruses can cause a cold, 30-50% are caused by...

Boneset ( Eupatorium perfoliatum ) is native to eastern North America and was used by Native Americans to treat fevers, including dengue fever and malaria. Today, boneset is used primarily in homeopathic medicine for fevers, influenza (flu), digestive problems, and liver disorders. However, the use of boneset is limited because other drugs generally are more effective. Boneset may be effective when taken by mouth as an immunostimulant and an anti-inflammatory agent. However, there is insufficient reliable information available about the effectiveness of boneset for its other uses. Products containing boneset have been placed in the "Herbs of Undefined Safety" category by the U.S. Food and Drug Administration (FDA).

Chamomile has been used medicinally for thousands of years, and is widely used in Europe. It is a popular treatment for numerous ailments, including sleep disorders, anxiety, digestion/intestinal conditions, skin infections/inflammation (including eczema), wound healing, infantile colic, teething pains, and diaper rash. In the United States, chamomile is best known as an ingredient in herbal tea preparations advertised for mild sedating effects. German chamomile ( Matricaria recutita ) and Roman chamomile ( Chamaemelum nobile ) are the two major types of chamomile used for health conditions. They are believed to have similar effects on the body, although German chamomile may be slightly stronger. Most research has used German chamomile, which is more commonly used everywhere except for England, where Roman chamomile is more common. Although chamomile is widely used, there is not enough reliable research in humans to support its use for any condition. Despite its reputation as a gentle medicinal plant, there are many reports of allergic reactions in people after eating or coming into contact with chamomile preparations, including life-threatening anaphylaxis.

Chamomile is a traditional medicinal herb native to western Europe, India, and western Asia. It has become abundant in the United States, where it has escaped cultivation to grow freely in pastures, cornfields, roadsides, and other sunny, well-drained areas.

Chamomile is a plant that has been used since ancient Egypt in a variety of healing applications. Chamomile is a native of the Old World; it is related to the daisy family, having strongly scented foliage and flowers with white petals and yellow centers.

Goldenseal is one of the five top-selling herbal products in the United States. However, there is little scientific evidence about its safety or effectiveness. Goldenseal can be found in dietary supplements, eardrops, feminine cleansing products, cold/flu remedies, allergy remedies, laxatives, and digestive aids. Goldenseal is often found in combination with echinacea in treatments for upper respiratory infections, and is suggested to enhance the effects of echinacea. However, the effects when these agents are combined are not scientifically proven. Goldenseal has been used by some people due to the popular notion that detection of illegal drugs in urine may be hidden by use of the herb, although scientific information is limited in this area. The popularity of goldenseal has led to a higher demand for the herb than growers can supply. This high demand has led to the substitution of other herbs such as Chinese goldthread ( Coptis chinensis Fransch.) and Oregon grape ( Mahonia aquifolium [Pursh] Nutt.), that do not contain exactly the same isoquinoline alkaloids, and may not affect the body in the same way as goldenseal. Studies of the effectiveness of goldenseal are limited to one of its main chemical ingredients, berberine salts (there are few published human studies of goldenseal itself). Due to the small amount of berberine actually present in most goldenseal preparations (0.5-6%), it is difficult to extend the research of berberine salts to the use of goldenseal. Therefore, there is not enough scientific evidence to support the use of goldenseal in humans for any medical condition.

Goldenseal ( Hydrastis canadensis ) is a perennial North American native plant found wild in eastern deciduous woodlands and damp meadows as far north as Vermont and Minnesota, and south to Georgia and Arkansas. This versatile herb is sought for its valuable rootstock and inner twig bark.

Zinc formulations have been used since Ancient Egyptian times to enhance wound healing, although the usefulness of this approach is only partially confirmed by clinical data of today. Zinc is necessary for the functioning of over 300 different enzymes and plays a vital role in an enormous number of biological processes. Zinc is a cofactor for the antioxidant enzyme superoxide dismutase (SOD) and is in a number of enzymatic reactions involved in carbohydrate and protein metabolism. Its immunologic activities include regulation of T lymphocytes, CD4, natural killer cells, and interleukin II. In addition, zinc has been claimed to possess antiviral activity. It has been shown to play a role in wound healing, especially following burns or surgical incisions. Zinc is necessary for the maturation of sperm and normal fetal development. It is involved in sensory perception (taste, smell, and vision) and controls the release of stored vitamin A from the liver. Within the endocrine system, zinc has been shown to regulate insulin activity and promote the conversion thyroid hormones thyroxine to triiodothyronine. Based on available scientific evidence, zinc may be efficacious in the treatment of (childhood) malnutrition, acne vulgaris, peptic ulcers, leg ulcers, infertility, Wilson's disease, herpes, and taste or smell disorders. Zinc has also gained popularity for its use in prevention of the common cold. The role for zinc is controversial in some cases, as the results of published studies provide either contradictory information, and/or the methodological quality of the studies do not allow for a confident conclusion regarding the role of zinc in those diseases.

Zinc is an important trace mineral. This element is second only to iron in its concentration in the body.

Zinc is a mineral that is essential for a healthy immune system, production of certain hormones, wound healing, bone formation, and clear skin. It is required in very small amounts, and is thus known as a trace mineral.

Zinc is a mineral that is essential for a healthy immune system , production of certain hormones, wound healing, bone formation, and clear skin. It is required in very small amounts, and is thus known as a trace mineral.