What forms of choline are found in dietary supplem

What forms of choline are found in dietary supplements?

Lecithin (phosphatidylcholine), usually extracted in the commercial marketplace from soybean, is the most common form of supplemental choline. Choline itself is also widely available. Although choline in many supplements is derived from soy, soy-free supplements are also available. Many of these contain choline in the form of choline bitartrate.