Lecithin can come from two main sources; soy or eggs. Clearly if you have a soy allergy, eating soy lecithin is unwise. Luckily, if lecithin is from soy, it must be labelled "soy lecithin" on the packaging. Eating egg lecithin should present no problems. I should point out that the vast majority of regular chocolate bars contain soy lecithin rather than egg; lecithin-free chocolate is a specialty product which can sometimes be found in specialist chocolateries or health-food stores.
Lecithin can be derived from egg, as well as from vegan sources. One example of a vegan place to get lecithin is from mustard. Lecithin is the most common and well known emulsifier, but there are others as well.
Much of the choline Americans consume comes from lecithin (phosphytidylcholine). Lecithin is most often added to foods as an emulsifier (a substance that helps keeps food components blended together). Most of the lecithin in the U.S. food supply comes from soybeans. Food sources of choline include soybeans and soybean products, potatoes, collards, brewer's yeast, chard, cauliflower, peas, corn, spinach, asparagus, peanuts and peanut butter, crimini mushrooms, grapefruit, oats, broccoli, Brussels sprouts, green beans, miso, and tomatoes. Many of these foods contain not only choline itself, but also other forms of the vitamin including lecithin (phosphatidylcholine) and sphingomyelin.
Tomatoes do contain lecithin. Tomatoes are excellent sources of multiple vitamins that are very beneficial for a person. Tomatoes are an excellent source of vitamin C and antioxidants.
Any food can release energy.
Soy Lecithin is used to reduce sticking of food in cooking. It is also used as a lubricant or oil in food to help with digestion and can be used to lower cholesterol.
ecithins - Emulsifier and StabilizerSome Lecithin contains egg yolks so not suitable for Vegans. Other main sources of Lecithin are from soya bean oil and is likely to be genetically modified (if sourced from countries such as the US) Lecithin can also be directly obtained from animal fat.
Lecithin is a phospholipid, a type of lipid that has a phosphate group. It is a major component of cell membranes and is commonly used as an emulsifier in food products.
Some lecithin is derived from soy bean oil, and some is derived from animal fat. A lot is derived from egg. Best to go to a vegetarian store which stocks soy lecithin.
Soy lecithin interacts strongly with Warfarin. soy products have a very high content of Vitamin K, and therefore would tend to reduce the effectiveness of Warfarin. Check it out at http://www.bitelog.com/narrow-food-search.htm?q=Vitamin+K+in+lecithin&action=Search -Joyce
Choline is need to make lecithin
There is no definite answer to this question since Lecithin (which is an emulsifier) may be derived form either plant (i.e. soy lecithin) - or animal source. Here in Germany it is specifically written if the lecithin is derived from soy beans (= soy lecithin). If only "lecithin" is written on the product, one has to ensure (f.e. by contacting the producer) whether its derived from animal or plant-source. See more here: http://en.wikipedia.org/wiki/Lecithin