Fats and oils

Lecithin

Also called: soy lecithin, sunflower lecithin, phosphatidylcholine

A fat mixture from soy, sunflower or eggs.

Why people take it
Cholesterol, breastfeeding (blocked ducts), liver.
What the evidence says
Little evidence.
How it is usually taken
Usually 1 to 2 tablespoons of granules or capsules a day.
Be careful
Generally safe.
Medicines it can interact with
No important medicine interactions are known, but tell your doctor and pharmacist about every supplement you take.

Other fats and oils

Common questions

What is Lecithin?

A fat mixture from soy, sunflower or eggs.

Why do people take Lecithin?

Cholesterol, breastfeeding (blocked ducts), liver.

Does Lecithin work?

Little evidence.

How much Lecithin do people take?

Usually 1 to 2 tablespoons of granules or capsules a day.

Is Lecithin safe?

Generally safe.

Does Lecithin interact with medicines?

No important medicine interactions are known, but tell your doctor and pharmacist about every supplement you take.

Sources and further reading

Last reviewed 31 October 2026. Written by Satya Babu.

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For information only, not medical advice. Supplements are not medicines: they are not tested and approved like drugs before they are sold, and they can interact with medicines. Talk to your doctor or pharmacist before you start one, especially if you are pregnant or breastfeeding, take regular medicines, or have kidney, liver or heart disease.