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Abalone Shell (shi jue ming)
Abutilon Seed (dong kui zi)
Acanthopanax Bark (wu jia pi)
Achyranthes (niu xi)
Aconite (fu zi)
Acorus (shi chang pu)
Adenophora Root (nan sha shen)
Agkistrodon (bai hua she)
Agrimony (xian he cao)
Ailanthus Bark (chun pi)
Akebia Fruit (ba yue zha)
Albizzia Bark (he huan pi)
Albizzia Flower (he huan hua)
Alfalfa (medicago sativa)
Alisma (ze xie)
Aloe (lu hui)
Alum (bai fan)
Amber (hu po)
Ampelopsis (bai lian)
Andrographis (chuan xin lian)
Anemarrhena (zhi mu)
Antelope's Horn (ling yang jiao)
Apricot Seed (xing ren)
Areca Peel (da fu pi)
Areca Seed (bing lang)
Arisaema (tian nan xing)
Ark Shell (wa leng zi)
Arnebia (zi cao or ying zi cao)
Arnica (arnica montana)
Artichoke Leaves (Cynara scolymus)
Ash bark (qin pi)
Ashwagandha (withania somniferum)
Aster (zi wan)
Astragalus (huang qi)
Aurantium (zhi ke [qiao])
Bamboo Juice (zhu li)
Bamboo Shavings (zhu ru)
Belamcanda Rhizome (she gan)
Benincasa Peel (dong gua pi)
Benincasa Seed (dong gua xi/ren)
Benzoin (an xi xiang)
Bilberry (yue ju)
Biota Leaf (ce bai ye)
Biota Seed (bai zi ren)
Bitter Melon (ku gua)
Bitter Orange Peel (ju hong)
Black Cohosh (sheng ma)
Black Plum (wu mei)
Black Sesame Seed (hei zhi ma)
Bletilla (bai ji)
Boneset (ze lan)
Borax (peng sha)
Borneol (bing pian)
Bottle Brush (mu zei)
Buddleia (mi meng hua)
Buffalo Horn (shui niu jiao)
Bulrush (pu huang)
Bupleurum (chai hu)
Burdock (niu bang zi)
Camphor (zhang nao)
Capillaris (yin chen hao)
Cardamon Seed (sha ren)
Carpesium (he shi)
Cassia Seed (jue ming zi)
Catechu (er cha)
Cat's Claw (uncaria tomentosa)
Cephalanoplos (xiao ji)
Celosia Seed (qing xiang zi)
Centipede (wu gong)
Chaenomeles Fruit(mu gua)
Chalcanthite (dan fan)
Chebula Fruit (he zi)
Chinese Gall (wu bei zi)
Chinese Raspberry (fu pen zi)
Chrysanthemum (ju hua)
Cibotium (gou ji)
Cinnabar (zhu sha)
Cinnamon (rou gui or gui zhi)
Cistanche (rou cong rong)
Citron (xiang yuan)
Citrus Peel (chen pi)
Clam Shell (hai ge ke/qiao)
Clematis (wei ling xian)
Cloves (ding xiang)
Cnidium Seed (she chuang zi)
Codonopsis (dang shen)
Coix Seed (yi yi ren)
Coptis (huang lian)
Cordyceps (dong chong)
Coriander (hu sui)
Corn Silk (yu mi xu)
Cornus (shan zhu yu)
Corydalis (yan hu suo)
Costus (mu xiang)
Cranberry (vaccinium macrocarpon)
Cremastra (shan ci gu)
Croton Seed (ba dou)
Curculigo (xian mao)
Cuscuta (tu si zi)
Cuttlefish Bone (hai piao xiao)
Cymbopogon (xiang mao)
Cynanchum (bai qian)
Cynomorium (suo yang)
Cyperus (xiang fu)
Dalbergia (jiang xiang)
Damiana (turnera diffusa)
Dandelion (pu gong ying)
Deer Antler (lu rong)
Dendrobium (shi hu)
Devil's Claw (harpagophytum procumbens)
Dianthus (qu mai)
Dichroa Root (chang shan)
Dittany Bark (bai xian pi)
Dong Quai (tang kuei)
Dragon Bone (long gu)
Dragon's Blood (xue jie)
Drynaria (gu sui bu)
Dryopteris (guan zhong)
Earthworm (di long)
Eclipta (han lian cao)
Elder (sambucus nigra or sambucus canadensis)
Elsholtzia (xiang ru)
Ephedra (ma huang)
Epimedium (yin yang huo)
Erythrina Bark (hai tong pi)
Eucalyptus (eucalyptus globulus)
Eucommia Bark (du zhong)
Eupatorium (pei lan)
Euphorbia Root (gan sui or kan sui)
Euryale Seed (qian shi)
Evodia (wu zhu yu)
Fennel (xiao hui xiang)
Fenugreek (hu lu ba)
Fermented Soybeans (dan dou chi)
Flaxseed (ya ma zi)
Fo Ti (he shou wu)
Forsythia (lian qiao)
Frankincense (ru xiang)
Fritillaria (chuan bei mu)
Gadfly (meng chong)
Galanga (gao liang jiang)
Galena (mi tuo seng)
Gambir (gou teng)
Gardenia (zhi zi)
Garlic (da suan)
Gastrodia (tian ma)
Gecko (ge jie)
Gelatin (e jiao)
Genkwa (yuan hua)
Germinated Barley (mai ya)
Ginger (gan [sheng] jiang)
Ginkgo Biloba (yin xing yi)
Ginseng, American (xi yang shen)
Ginseng, Asian (dong yang shen)
Ginseng, Siberian (wu jia shen)
Glehnia (sha shen)
Glorybower (chou wu tong)
Goldenseal (bai mao liang)
Gotu Kola (luei gong gen)
Green Tea (lu cha)
Gymnema (gymnema sylvestre)
Gynostemma (jiao gu lan)
Gypsum (shi gao)
Halloysite (chi shi zhi)
Hawthorn (shan zha)
Hemp Seed (huo ma ren)
Homalomena (qian nian jian)
Honey (feng mi)
Honeysuckle Flower (jin yin hua)
Honeysuckle Stem (ren dong teng)
Houttuynia (yu xing cao)
Huperzia (qian ceng ta)
Hyacinth Bean (bai bian dou)
Hyssop (huo xiang)
Ilex (mao dong qing)
Imperata (bai mao gen)
Indigo (qing dai)
Inula (xuan fu hua)
Isatis Leaf (da qing ye)
Isatis Root (ban lan gen)
Java Brucea (ya dan zi)
Jujube (da zao)
Juncus (deng xin cao)
Kadsura Stem (hai feng teng)
Katsumadai Seed (cao dou kou)
Kelp (kun bu)
Knotweed (bian xu)
Knoxia root (hong da ji)
Kochia (di fu zi)
Lapis (meng shi)
Leech (shui zhi)
Leechee Nut (li zhi he)
Leonorus (yi mu cao)
Lepidium Seed (ting li zi)
Licorice (gan cao)
Ligusticum (chuan xiong)
Ligustrum (nč zhen zi)
Lily Bulb (bai he)
Limonite (yu liang shi)
Lindera (wu yao)
Litsea (bi cheng qie)
Lobelia (ban bian lian)
Longan (long yan hua [rou])
Lophatherum (dan zhu ye)
Loquat Leaf (pi pa ye)
Lotus Leaf (he ye)
Lotus Node (ou jie)
Lotus Seed (lian zi)
Lotus Stamen (lian xu)
Luffa (si gua luo)
Lycium Bark (di gu pi)
Lycium Fruit (gou qi zi)
Lygodium (hai jin sha)
Lysimachia (jin qian cao)
Magnetite (ci shi)
Magnolia Bark (hou po)
Magnolia Flower (xin yi hua)
Maitake (grifola frondosa)
Marigold (c. officinalis)
Massa Fermentata (shen qu)
Milk Thistle (silybum marianum)
Millettia (ji xue teng)
Mint (bo he)
Mirabilite (mang xiao)
Morinda Root (ba ji tian)
Mugwort Leaf (ai ye)
Mulberry Bark (sang bai pi)
Mulberry Leaf (sang ye)
Mulberry Twig (sang zhi)
Mullein (jia yan ye)
Musk (she xiang)
Myrrh (mo yao)
Notoginseng (san qi)
Notopterygium (qiang huo)
Nutmeg (rou dou kou)
Oldenlandia (bai hua she she cao)
Omphalia (lei wan)
Onion (yang cong)
Ophicalcite (hua rui shi)
Ophiopogon (mai dong)
Oroxylum Seed (mu hu die)
Oryza (gu ya)
Oyster Shell (mu li)
Passion Flower (passiflora incarnata)
Patrinia (bai jiang cao)
Pau D'Arco (tabebuia avellanedae)
Peach Seed (tao ren)
Pearl (zhen zhu [mu])
Perilla Leaf (su ye)
Perilla Seed (su zi)
Perilla Stem (su geng)
Persimmon (shi di)
Pharbitis Seed (qian niu zi)
Phaseolus (chi xiao dou)
Phellodendron (huang bai)
Phragmites (lu gen)
Picrorhiza (hu huang lian)
Pinellia (ban xia)
Pine Knots (song jie)
Pipe Fish (hai long)
Plantain Seed (che qian zi)
Platycodon (jie geng)
Polygala (yuan zhi)
Polygonatum (huang jing)
Polyporus (zhu ling)
Poppy Capsule (ying su qiao)
Poria (fu ling)
Prickly Ash Peel (hua jiao)
Prinsepia Seed (rui ren/zi)
Prunella (xia ku cao)
Prunus Seed (yu li ren)
Pseudostellaria (tai zi shen)
Psoralea (bu gu zhi)
Pueraria (ge gen)
Pulsatilla (bai tou weng)
Pumice (fu hai shi)
Pumpkin Seed (nan gua zi)
Purslane (ma chi xian)
Pyrite (zi ran tong)
Pyrrosia Leaf (shi wei)
Quisqualis (shi jun zi)
Radish (lai fu zi)
Realgar (xiong huang)
Red Atractylodes (cang zhu)
Red Clover (trifolium pratense)
Red Ochre (dai zhe shi)
Red Peony (chi shao)
Red Sage Root (dan shen)
Rehmannia (shu di huang)
Reishi (ling zhi)
Rhubarb (da huang)
Rice Paper Pith (tong cao)
Rose (mei gui hua)
Rosemary (mi die xiang)
Safflower (hong hua)
Saffron (fan hong hua)
Sandalwood (tan xiang)
Sanguisorba Root (di yu)
Sappan Wood (su mu)
Sargent Gloryvine (hong teng)
Saw Palmetto (ju zong lu)
Schefflera (qi ye lian)
Schisandra (wu wei zi)
Schizonepeta (jing jie)
Scirpus (san leng)
Scopolia (S. carniolica Jacq.)
Scorpion (quan xie)
Scrophularia (xuan shen)
Scutellaria (huang qin)
Sea Cucumber (hai shen)
Sea Horse (hai ma)
Seaweed (hai zao)
Selaginella (shi shang bai)
Senna (fan xie ye)
Shiitake (hua gu)
Siegesbeckia (xi xian cao)
Siler Root (fang feng)
Slippery Elm (ulmus fulva)
Smilax (tu fu ling)
Smithsonite (lu gan shi)
Sophora Flower (huai hua mi)
Sophora Root (ku shen)
Spirodela (fu ping)
Stellaria (yin chai hu)
Stemona (bai bu)
Stephania (fang ji [han])
Sweet Annie (qing hao)
Teasel Root (xu duan)
Tiger Bone (hu gu)
Torreya Seed (fei zi)
Tortoise Plastron (gui ban)
Tremella (bai mu er)
Trichosanthes Fruit (gua lou)
Trichosanthes Root (tian hua fen)
Trichosanthes Seed (gua lou ren)
Tsaoko Fruit (cao guo)
Turmeric (jiang huang)
Turtle Shell (bie jia)
Tussilago (kuan dong hua)
Urtica (xun ma)
Uva ursi (arctostaphylos uva-ursi)
Vaccaria Seed (wang bu lui xing)
Valerian (jie cao)
Veratrum (li lu)
Viola (zi hua di ding)
Vitex (man jing zi)
Walnut (hu tao ren)
Watermelon (xi gua)
White Atractylodes (bai zhu)
White Mustard Seed (bai jie ze)
White Peony (bai shao)
Wild Asparagus (tian men dong)
Windmill Palm (zong lu pi/tan)
Xanthium (cang er zi)
Zedoary (e zhu)

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Selenium

What is selenium? Why do we need it?

An essential trace element, selenium is nonmetallic, gray in appearance, and similar to sulfur in its chemical composition. It is often available in single or multivitamin supplements.

Why do we need it?

Selenium is needed to activate a number of hormones produced by the thyroid gland. It also activates an antioxidant enzyme called glutathione peroxidase, which may help protect the body from cancer, and has been shown to induce "apoptosis" (programmed cell death) in cancer cells. Selenium also plays a vital role in the functioning of the immune system. Studies have found that selenium supplementation stimulates the activity of white blood cells. It also enhances the effect of vitamin E, one of three vitamins that act as antioxidants.

How much selenium should I take?

According to the National Academy of Sciences, the recommended daily allowance (RDA) of selenium is as follows:

  • Adult men: 55 micrograms/day
  • Adult women: 55 micrograms/day
  • Children aged 7-10: 30 micrograms/day
  • Infants: between 10-15 micrograms/day
  • Pregnant/lactating women: between 65-75 micrograms/day

What are some good sources of selenium?

Brazil nuts are the best source of selenium. Yeast, whole grains, garlic and seafood are also good sources. Some vegetables may contain considerable amounts of selenium depending on the content of selenium in the soil.

What can happen if I don't get enough selenium?

While most people do not consume enough selenium on a daily basis, severe deficiency is rare. Soils in some areas are selenium deficient, and people who eat foods grown primarily on selenium-poor soils can be at greater risk for deficiency. The most notable condition caused by selenium deficiency is Keshan disease, which causes an abnormality of the heart muscle. Some studies have shown that patients with AIDS have abnormally low levels of selenium. Other research has demonstrated an association between heart disease and depleted levels of selenium.

What can happen if I take too much?

Taking large amounts (more than 1,000 micrograms) of selenium per day can cause the loss of fingernails, teeth, and hair; nausea; and fatigue. In conjunction with iodine-deficiency induced goiter, selenium supplementation has been reported to increase the severity of low thyroid function.


References

  • Recommended Dietary Allowances, 10th ed. Washington, D.C.: National Academy Press, 1989.
  • Murray M. Encyclopedia of Nutritional Supplements. Rocklin, CA: Prima Publishing, 1996.
  • Clark LC, et al. Effects of selenium supplementation for cancer prevention in patients with carcinoma of the skin. JAMA 1996;276:1957-63.
  • Peretz A, et al. Lymphocyte response is enhanced by supplementation of elderly subjects with selenium-enriched yeast. Am J Clin Nutri 1991;53:1323-28.
  • Dworkin BM. Selenium deficiency in HIV infection and the acquired immunodeficiency syndrome (AIDS). Chem Biol Iteract 1994;91:181-86.
  • Moore JA, Noiva R, Wells IC. Selenium concentrations in plasma of patients with arteriographically defined coronary atherosclerosis. Clin Chem 1984;30:1171-73.
  • Contempre B, et al. Effects of selenium supplementation in hypothyroid subjects of an iodine and selenium deficient area: The possible danger of indiscriminate supplementation of iodine deficient subjects with selenium. J Clin Endocrinol Metabol 1991;73:213-15.
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