Soy Lecithin

Overview

Soy lecithin is a concentrated source of choline, supporting phosphatidylcholine synthesis and LPC-DHA transport for brain delivery.

Within the BRAIN Diet framework, precision sourcing of functional plant foods such as Mankai duckweed (iron, B12), soy/soy lecithin (choline), and fortified nutritional yeast (B12, B6) is recommended [1][2].

Key Nutritional Highlights

• Soy lecithin is a concentrated dietary phosphatidylcholine source supporting choline intake [1]
• Choline adequacy supports acetylcholine synthesis and membrane phospholipid turnover [2]
• Soy lecithin is a concentrated source of choline, supporting phosphatidylcholine synthesis and LPC-DHA transport for brain delivery. [1]
• Precision sourcing of functional plant foods such as Mankai duckweed (iron, B12), soy/soy lecithin (choline), and fortified nutritional yeast (B12, B6) is recommended. [2]
• Soy lecithin is a concentrated source of choline, supporting phosphatidylcholine synthesis and LPC-DHA transport for brain delivery.

Food Context

Preparation

• Available as supplement or food additive
• Important for vegan choline intake
• Supports phospholipid-bound omega-3 strategy
• Part of functional food approach

Essential Amino Acid Profile

Soy Lecithin provide a relatively complete plant protein (higher in lysine than most grains). Pairing with grains or other legumes still supports dietary variety and amino acid balance.

Recipes

no recipes found

Nutrient Tables (per 100 g)

Core nutrients

Nutrient	Amount per 100 g	% RDA per 100 g
Energy	763 kcal	—
Total fat	100 g	—
Saturated fat	15 g	—

Key vitamins and minerals

Nutrient	Amount per 100 g	% RDA per 100 g
Choline	350 mg	63.6%

Bioactive compounds

Explicitly identified compounds, including individual fatty acids, with a defensible quantity or an explicit qualitative status. Asterisks (*) identify supplementary sources below. Unquantified or trace constituents are not automatically admitted to the Substances list.

Compound / class	Amount per 100 g	Notes
Phosphatidylcholine	Present — quantity not established *	—

Source notes (supplementary):

• * Phosphatidylcholine: Soy Lecithin is a phospholipid-rich food in which phosphatidylcholine is a major choline form; USDA SR Legacy reports choline, not phosphatidylcholine specifically.

Reference intakes: US Dietary Reference Intakes for adults (19–50 years; using the higher of male/female values where they differ).

Data provenance (core / micronutrient panel): USDA FoodData Central, Oil, soybean lecithin, FDC ID 171426, SR Legacy bulk (April 2018), per 100 g edible portion, last checked 2026-08-15

Substances

Substances admitted through a supported nutrition-table row. Not every table row appears here. Cards are not BRS mappings.

2 substances in this food

Choline

Acetylcholine precursor; methyl donor; phospholipid synthesis for membranes

Phosphatidylcholine (PC)

Key brain phospholipid; carrier for DHA/EPA and acetylcholine precursor pathway

References

[1] Soy lecithin is a concentrated dietary phosphatidylcholine source supporting choline intake. Derbyshire & Maes 2023. The Role of Choline in Neurodevelopmental Disorders—A Narrative Review Focusing on ASC, ADHD and Dyslexia

[2] Choline adequacy supports acetylcholine synthesis and membrane phospholipid turnover. Halder & Lal 2021. Cholinergic System and Its Therapeutic Importance in Inflammation and Autoimmunity