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| Abuta |
Abuta grows in the Amazon basin and other humid, tropical areas of the world.
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| Acacia |
The name "acacia" comes from the Greek word akis, which means "sharp point.
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| Acai |
The acai palm tree (Euterpe oleracea) is native to tropical Central and South America and grows mainly in floodplains and swamps.
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| Acerola |
Acerola is believed to have originated in the Yucatan.
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| Ackee |
Ackee (Blighia sapida) is the national fruit of Jamaica and grows in clusters on evergreen trees.
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| Aconite |
The aconite plant grows in rocky areas.
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| Adrenal extract |
Adrenal extracts come from the adrenal glands of cows, pigs or sheep.
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| African wild potato |
The African wild potato grows in South Africa.
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| Agaric |
Agaric, or Amanita muscaria, is a basidiomycete mushroom.
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| Agave |
Agave plants are common in the American southwest, Mexico, central and tropical South America, the Mediterranean and some parts of India.
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| Agrimony |
Agrimony was one of the most famous vulnerary herbs with anti-inflammatory and diuretic properties.
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| Alfalfa |
Alfalfa has a long history of dietary and medicinal use.
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| Algin |
Algin comes from brown seaweed, and is found in the North Atlantic basin.
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| Alizarin |
Alizarin is a chemical stain that highlights calcium.
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| Alkanna |
Alkanna grows in southern France and on the shores of the Levant.
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| Aloe |
Clear gel from the pulp of Aloe vera leaves has been used on the skin for thousands of years to treat wounds, skin infections, minor burns and other skin conditions.
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| Alpha-lipoic acid |
Folate and folic acid are forms of a water-soluble B vitamin.
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| Alpinia |
Alpinia has been known in Europe for several centuries longer than its botanical origin.
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| American hellebore |
American hellebore is a plant native to the swampy areas and moist meadows of the eastern and western United States.
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| American Pawpaw |
Asimina triloba is a fruiting tree native to North America.
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| American pennyroyal |
The essential oil of pennyroyal is considered toxic.
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| Andrographis |
The leaves of Andrographis paniculata,
an annual herb, were commonly used in Indian folk medicine and Ayurveda for centuries.
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| Angel's trumpet |
Angel's trumpet is a common name for two closely related genera in the family Solanaceae: Brugmansia, comprising woody plants with pendulous flowers and Datura, comprising herbaceous plants with erect flowers.
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| Anhydrous crystalline maltose |
Anhydrous crystalline maltose has been used as a food stabilizer and a desiccant (chemical agents that absorb moisture) for use in foods, cosmetics, and pharmaceuticals.
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| Anise |
Anise grows in the eastern Mediterranean region.
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| Annatto |
Annatto is produced from the reddish pulp that surrounds the seed of the achiote (Bixa orellana L.
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| Antineoplastons |
Antinioplastons are substances found in normal human blood and urine.
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| Aortic acid |
Aortic extract is usually manufactured from the hearts of animals, usually sheep, cows, or pigs.
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| Apple cider vinegar |
There is little scientific study of the safety of apple cider vinegar.
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| Apricot (Prunus armeniaca) |
Apricot is a natural fruit that grows in the northern Himalayas.
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| Arabinoxylan |
Arabinoxylan, made from rice bran and
mushroom extract, has been used to support individuals with low white blood cell counts caused by chemotherapy.
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| Arginine |
L-arginine helps maintain the body's fluid balance (urea, creatinine), and aids in wound healing, hair growth, sperm production (spermatogenesis), blood vessel relaxation (vasodilation) and fights infection.
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| Arnica |
Arnica is commonly used in herbal ointments and oils applied on the skin as an anti-inflammatory and pain-relieving agent for aches, bruises, and sprains on unbroken skin.
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| Arrowroot |
Arrowroot refers to any plant of the genus Maranta, but the term is most commonly used to describe the easily digestible starch obtained from the rhizomes of Maranta arundinacea.
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| Asafoetida |
Asafoetida or asafetida (Ferula assafoetida) is a plant native to Iran (Middle East) that has a strong sulfurous smell.
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| Asarum |
Based on historical use and available research, asarum does not seem well tolerated in humans, except as a homeopathic agent.
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| Ash |
The use of ash as an herbal remedy can be traced to Native Americans and the early settlers of the Americas.
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| Ashwagandha |
Ashwagandha (Withania somnifera) is a small, grayish, erect evergreen shrub that grows to about 4-5 feet tall, with small greenish flowers and fruits that become orange-red when ripe.
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| Asparagus |
Asparagus is a perennial garden vegetable of the family Liliaceae.
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| Astaxanthin |
Astaxanthin is classified as a xanthophyll, which is a carotenoid pigment, and can be found in microalgae, yeast, salmon, trout, krill, shrimp, crayfish, crustaceans, and the feathers of some birds.
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| Astragalus |
In Traditional Chinese Medicine (TCM), astragalus is commonly found in mixtures with other herbs.
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| Avocado |
Avocados are fruits, not vegetables.
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