Evidence supporting the use of: Lecithin
For the body system: Acetylcholine

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Lecithin is traditionally used as a source of phospholipids, including phosphatidylcholine, which is a precursor to the neurotransmitter acetylcholine. The rationale is that by increasing dietary intake of lecithin or phosphatidylcholine, one might support acetylcholine synthesis in the body, which is important for memory and cognitive function. Historically, lecithin supplements have been marketed for supporting brain health, memory, and cognitive performance, based largely on this biochemical relationship. However, the scientific evidence supporting this use is limited and inconsistent. Clinical trials have generally failed to demonstrate significant cognitive benefits in healthy individuals or in those with cognitive impairment or Alzheimer's disease. Most studies do not show a meaningful increase in brain acetylcholine levels or improvement in cognitive outcomes with lecithin supplementation. While lecithin is a legitimate dietary source of choline, the body regulates acetylcholine synthesis through multiple mechanisms, and simply increasing lecithin intake does not necessarily translate to enhanced neurotransmitter production. In summary, the use of lecithin to support the acetylcholine system is rooted more in traditional or theoretical grounds than in robust scientific validation.

More about lecithin
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Other body systems supported by lecithin

Acetylcholine
Brain
Gall Bladder
Hepatic System
Liver
Nerves