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Soy

Medically reviewed by Drugs.com. Last updated on Jun 4, 2022.

What are other common names?

  • Dolichos soja
  • Glycine gracilis
  • Glycine hispida
  • Glycine max
  • Glycine soja
  • Phaseolus max
  • Soja hispida
  • Soja max
  • Cosse de Soja
  • Cosse de Soya
  • Daidzein
  • Daidzéine
  • Edamame
  • Estrogène Végétal
  • Fermented Soy
  • Fibre de Soja
  • Fibre de Soya
  • Frijol de Soya
  • Fève de Soja
  • Fève de Soya
  • Genestein
  • Genistein
  • Génistéine
  • Haba Soya
  • Haricot de Soja
  • Haricot de Soya
  • Hydrolyzed Soy Protein
  • Isoflavone
  • Isoflavone de Soja
  • Isoflavone de Soya
  • Isoflavones
  • Isolated Soy Protein
  • Isolated Soybean Protein
  • Lait de Soja
  • Lait de Soya
  • Legume
  • Miso
  • Natto
  • Phaseolus max
  • Phytoestrogen
  • Plant Estrogen
  • Protéine de Haricot de Soja Isolée
  • Protéine de Haricot de Soya Isolée
  • Protéine de Soja
  • Protéine de Soja Isolée
  • Protéine de Soya
  • Protéine de Soya Isolée
  • Shoyu
  • Soja
  • Soja Fermenté
  • Soja hispida
  • Soja max
  • Sojabohne
  • Soy Bean
  • Soy Fiber
  • Soy Germ
  • Soy Isoflavones
  • Soy Milk
  • Soy Protein
  • Soy Protein Isolate
  • Soya
  • Soya Bean
  • Soya Fermenté
  • Soybean
  • Soybean Curd
  • Soybean Isoflavones
  • Tempeh
  • Texturized Vegetable Protein
  • Tofu
  • Touchi

What is this product used for?

Soy supplements may help some people with bowel problems, like symptoms from irritable bowel syndrome. Information from medical studies does not consistently support the use of soy supplementation for other health problems.

What are the precautions when taking this product?

  • Always check with your doctor before you use a natural product. Some products may not mix well with other drugs or natural products.

  • This product may interfere with some lab tests. Be sure to talk with your doctor about this and all drugs you are taking.

  • Be sure to tell your doctor if you are pregnant, plan on getting pregnant, or are breastfeeding. You will need to talk about the benefits and risks of using this natural product.

  • Take extra care if you have health problems that are sensitive to hormones. These are problems like breast cancer, prostate cancer, or endometriosis.

  • Take extra care if you are taking drugs that contain estrogen. These are drugs like birth control pills and hormone replacement therapy.

  • Take extra care and check with your doctor if you have:

    • Thyroid problems

    • Asthma

    • Cancer

    • Heart problems, especially men

What should I watch for?

  • Upset stomach

When do I need to call the doctor?

  • Signs of a very bad reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat. Go to the ER right away.

  • Signs of low thyroid. These include weight gain, feeling tired, dry skin, and feeling cold.

  • Very bad throwing up

  • Very bad loose stools

Where can I learn more?

National Center for Complementary and Integrative Health

https://www.nccih.nih.gov/health/soy

Last Reviewed Date

2022-04-13

Consumer information use

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Frequently asked questions

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.