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Lecithin Benefits and Side Effects: Soy Lecithin Dosage, Timing and Who Should Avoid It

Lecithin is a mix of phospholipids, mainly phosphatidylcholine, and a source of choline. Soy vs sunflower vs egg lecithin, the evidence (including cholesterol claims), dose, timing, side effects and who should avoid it.

Lecithin Benefits and Side Effects: Soy Lecithin Dosage, Timing and Who Should Avoid It

Choline needs

GroupAdequate Intake
Men550 mg
Women425 mg
Pregnancy450 mg
Lactation550 mg
Adult upper limit3,500 mg

Side effects and precautions

  • Diarrhea, bloating or nausea at higher doses.
  • Very high choline intake can cause fishy body odor, sweating and low blood pressure.
  • Soy- or egg-allergic people should check the source.

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This article is general wellness and product information, not medical advice. If you have a medical condition, take medication, or are pregnant or breastfeeding, talk to your doctor or pharmacist first.

Sources

  1. NIH ODS: Choline

FAQ

What is lecithin good for?

It supplies phospholipids and some choline; claims about cholesterol and memory are not well supported.

When should I take lecithin?

With meals, at the label dose.

Who should avoid lecithin?

People allergic to soy or egg should check the source; ask a doctor if pregnant, breastfeeding or on long-term medication.

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