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Medically reviewed by Last updated on Feb 24, 2022.

What are other common names?

  • 1,2-diacyl-sn-glycero-3-phosphatidylcholine
  • Egg Lecithin
  • Granulestin
  • Kelecin
  • Lecithol
  • Soy Lecithin
  • Soy Phospholipids
  • Soybean Lecithin
  • Vitellin
  • Vitelline

What is this product used for?

Lecithin is a type of fat that contains many nutrients used to build healthy tissues, such as choline. It may help maintain a healthy colon in people with certain intestinal problems like ulcerative colitis.

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 drugs or other natural products.

  • 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 are allergic to eggs or soy.

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

    • Mental problems

    • Memory loss

    • High cholesterol

    • Liver problems

    • Blood pressure problems

    • Heart disease

What should I watch for?

  • Upset stomach

  • Not feeling hungry

  • Increases in sweating or saliva

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 blood pressure like feeling dizzy, weak, or tired; fainting; more thirst; or skin that is pale, cool, and clammy.

  • Signs of liver problems like upset stomach or throwing up, belly pain, feeling tired, dark urine, yellow skin or eyes, not hungry.

  • Very bad throwing up

  • Very bad loose stools

Where can I learn more?

NIH Office of Dietary Supplements

Last Reviewed Date


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