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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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Vitamin B1 (thiamin)

What is vitamin B1? Why do we need it?

Also known as thiamin, vitamin B1 is a water-soluble vitamin. Since it is not stored in body fat, after the body uses what it needs, any excess vitamin B1 is excreted in the urine.

Why do we need it?

Like most of the B vitamins, thiamin plays a variety of roles in the human body. Its most important function is to help the body's cells convert carbohydrates into ATP – the fuel the body runs on. It is also involved in metabolic activities relating to the heart, brain and muscles, and it helps ensure proper nerve cell function.

How much vitamin B1 should I take?

According to the National Academy of Science, the recommended daily allowance (RDA) for thiamin is as follows:

  • Adult men: 1.5 milligrams/day
  • Adult women: 1.1 milligrams/day
  • Children aged 7-10: 1 milligram/day
  • Infants: 0.4 milligrams/day
  • Pregnant/lactating women: 1.6 milligrams/day

What are some good sources of vitamin B1?

Thiamin is found in almost all foods, but the best sources are pork and other lean meats. Other good sources include enriched and fortified cereals, oatmeal, corn, nuts, beans, cauliflower and sunflower seeds.

What can happen if I don't get enough vitamin B1?

Vitamin B1 deficiency can result in edema and abnormal heart rhythm. Severe B1 deficiency (also known as beriberi) is rare in the U.S. but can occur in severely malnourished people, alcoholics, or people on long-term dialysis. Symptoms may include paralysis, loss of balance, loss of feeling in the legs and feet, visual problems and congestive heart failure.

What can happen if I take too much?

To date, no toxic effects have been reported for vitamin B1. Because it is water-soluble and is not stored in the body, the chances of enough B1 building up to toxic levels are highly unlikely. Most people taking multivitamins with high levels of B1 or eating foods rich in amounts of B1 need not worry about toxicity.


References

  • B vitamins may cut heart disease risk. Harvard Health News April 1998.
  • B vitamins and the heart: what men can learn from women. Harvard Men's Health Watch June 1998.
  • Cheraskin E, Ringsdorf WM, Medford FH, Hicks BS. The "ideal" daily vitamin B1 intake. J Oral Med 1978; 33:77-79.
  • Recommended Dietary Allowances, 10th ed. Washington, D.C.: National Academy Press, 1989.
  • Insel PM. Thiamin: essential for health. Health Line November 1995.
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