When medical researchers use the term “lecithin,” they are referring to a purified substance called phosphatidyl choline (PC) that belongs to a special category of fat-soluble substances called phospholipids.
Where is it found?
Choline, the major constituent of PC, is found in soybeans, liver, oatmeal, cabbage, and cauliflower. Soybeans, egg yolks, meat, and some vegetables contain PC. Lecithin (containing 10–20% PC) is added to many processed foods in small amounts for the purpose of maintaining texture consistency.
Phosphatidyl choline has been used in connection with the following conditions (refer to the individual health concern for complete information):
| Science Rating | Health Concerns |
|---|---|
 | High homocysteine Liver cirrhosis Neural tube defects (prevention) Tardive dyskinesia |
 | Alzheimer’s disease Bipolar disorder Gallbladder attacks Hepatitis High cholesterol |
 Reliable and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit. For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit. | |
Who is likely to be deficient?
Although choline deficiencies have been artificially induced in people, little is known about human deficiency in the real world.
How much is usually taken?
Small amounts of choline are present in many B-complex and multivitamin supplements.
Are there any side effects or interactions?
With several grams of choline per day, some people will experience abdominal discomfort, diarrhea, or nausea. Supplementing choline in large amounts (over 1,000 mg per day) can lead to a fishy body odor. PC does not have this effect. Depression has been reported as a side effect in people taking large amounts of choline, such as 9 grams per day.
The body uses both PC and pantothenic acid to form acetylcholine.
Copyright 2007, Healthnotes, Inc., 1505 S.E. Gideon St., Suite 200, Portland, Oregon 97202, www.Healthnotes.com.
2006-09-07
