There is not enough scientific evidence to suggest that soy lecithin really is effective for most uses (see Does Lecithin Work? for more information).
Although general dosing guidelines may be obtained from a few clinical studies that evaluated certain uses of the supplement, there is no established standard dosage for soy lecithin.
(Click Soy Lecithin Dosage for more information.)
People sometimes assume that dietary supplements are automatically free of side effects. However, this is usually not the case. In studies, lecithin has been reported to cause the following side effects:
- Abdominal pain (stomach pain)
- Abdominal fullness
(Click Soy Lecithin Side Effects to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
It is not clear if soy lecithin interacts with other medications or supplements (see Soy Lecithin Drug Interactions).