Choline
Definition
What 'Choline' means
Choline is found in eggs, liver, and soybeans, and is synthesized in small amounts by the body. It is a precursor to the neurotransmitter acetylcholine and is critical for cell membrane integrity and lipid metabolism. Inadequate intake may contribute to fatty liver disease and neural tube defects during pregnancy, making it especially important for pregnant women.
Related terms
In depth
The longer answer
Choline is an essential, water-soluble nutrient that the body requires for cell membrane structure, neurotransmitter synthesis, and fat metabolism. Though often grouped with B-vitamins due to similar functions, it is not technically a vitamin. Consumers encounter choline primarily through dietary supplements, prenatal vitamins, and food labels on eggs, meat, and dairy products, where it is naturally abundant.
In the body, choline is converted into acetylcholine, a neurotransmitter critical for memory and muscle control, and into phosphatidylcholine, a key component of cell membranes. It also aids in transporting fats from the liver, preventing fat accumulation. The liver can synthesize some choline, but dietary intake is necessary to meet daily needs, especially during pregnancy and lactation when demand rises significantly.
For those eating plant-based diets, choline intake can be lower because rich sources like eggs and liver are excluded. However, adequate amounts are obtainable from soybeans, cruciferous vegetables, quinoa, and nuts. While choline is important for brain and liver health, most people in well-balanced diets meet requirements without supplementation, and excessive intake from supplements may cause side effects like fishy body odor.
At a glance
Quick facts
| Detail | What to know |
|---|---|
| Daily requirement | 425-550 mg for adults |
| Rich plant sources | Soybeans, broccoli, quinoa, peanuts |
| Main animal sources | Eggs, beef liver, chicken, fish |
| Deficiency risk groups | Pregnant women, vegans, athletes |
In practice
What this means for you
- Check nutrition labels on plant milks and tofu for added choline; some brands fortify with it.
- Include a serving of soybeans, Brussels sprouts, or peanuts in your daily meals to boost choline intake.
- If pregnant or breastfeeding, discuss choline supplementation with your healthcare provider to cover increased needs.
- Pair choline-rich foods with folate sources like leafy greens, as both nutrients support methylation pathways.
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