Energy And Resistance

Soy Lecithin - What It Is, Indications, Side Effects and Properties

Soy lecithin is a very versatile substance, which can be used as a food supplement, as additives added in food, medicines and creams. But, finally, what is lecithin for soy? What are the risks associated with its use?

We will discuss what is lecithin for soy, its indications, possible side effects and discuss its beneficial properties for the body.

Soy Lecithin - What is it?

Soy lecithin is an essential fat for the cells of our body. It is naturally found in animal and vegetable tissues, in various foods like soybeans and egg yolks.

Besides being an important fat for our metabolism, soy lecithin can be used as a remedy for various types of diseases.

Soy lecithin consists mainly of 3 types of phospholipids: phosphatidylcholine, phosphatidylethanolamine and phosphatidylinositol. The detailed nutritional profile is shown below:

  • 33 to 35% soybean oil;
  • 20 to 21% phosphatidylinositol;
  • 19 to 21% phosphatidylcholine;
  • 8 to 20% phosphatidylethanolamine;
  • 5 to 11% of other phospholipids;
  • 5% carbohydrate;
  • 2 to 5% sterols;
  • 1% humidity.

It also features essential oils like linoleic and linolenic acid, known as omega 3 and 6.

When we have a healthy diet, our own body is able to synthesize lecithin. Specifically it is the liver that does this and makes the substance available to the rest of the body.

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What is it for?

Soy lecithin can be used to treat memory disorders such as dementia and Alzheimer's disease. It can also be used to treat liver and gallbladder diseases, some types of depression, high cholesterol, anxiety and a skin disease known as eczema.

Lecithin acts in our body through conversion to acetylcholine, which is a substance that transmits nerve impulses. It is usually found as a supplement.


Soy lecithin contains emulsifying properties, that is, it helps to bind substances, and for that reason is so used in the food and cosmetics industry.

The substance also acts as a surfactant, which means that it alters the surface tension of and helps them spread more easily, which is also great for the foods. It is no wonder that it is a compound found on the labels of various food products.

Some people use soy lecithin because of its medicinal or nutritional properties related to its high content of phosphatidylcholine, which is a micronutrient beneficial to heart health and brain development, for example.

Indications and benefits of soy lecithin

- Liver health

Soy lecithin is indicated for liver problems, since it is able to reduce the accumulation of fat in this organ and prevent the blockage of the blood system. In addition, lecithin is able to protect the liver from damage by aiding in the elimination of toxins.

- Skin Health

The use of soy lecithin is also indicated to treat skin problems such as eczema, dry skin and contact dermatitis. There are several creams that contain soy lecithin as an ingredient to help in the interaction of the cream with the skin and the effect last longer.

- Longevity

A study with rats showed that a group of animals fed a nutritional content of 5% of soy lecithin lived longer than those who were fed a dose of only 2% of the substance.

- Neurological effects and brain health

A study of 80 adult subjects who underwent a stress test showed that subjects who ingested soy lecithin were less stressed than the others. This was attested by monitoring the hormone cortisol, which is the hormone related to stress. It was concluded in this study that a daily dose of 2 g of soy lecithin may have an anti-stress effect.

In addition, choline which is produced from the phosphatidylcholine present in lecithin participates in the formation of the neurotransmitter acetylcholine, which performs several important brain functions, also helping to prevent diseases such as Alzheimer's and insanity.

- Heart Health and Cholesterol

There is some research that indicates the use of the substance for people with high cholesterol. This is because studies show that lecithin causes a reduction in cholesterol levels.

Research shows that the substance lowers bad cholesterol by stimulating the secretion of bile acid. When administering a dose of 500 mg of soy lecithin daily for 2 months, it was found that total LDL cholesterol decreased by up to 42% and LDL by as much as 56% without changing LDL levels. HDL.

- Inflammation and immunology

Studies indicate that using soy lecithin seems to improve the body's immune response and improve the fight against inflammation.

- Absorption of other nutrients

Research indicates that soy lecithin is capable of improving the absorption by the body of other nutrients such as curcumin, catechins present in green tea, grape seed extract and medicines like naproxen.


Follow the instructions on the label of the substance. Generally, soy lecithin supplements should be used from 500 to 2000 mg per day. If you want to use more than this, consult your doctor.

Side effects

Soy lecithin has no serious side effects. The most common are:

  • Diarrhea;
  • Nausea;
  • Abdominal pain;
  • Feeling of fullness or gases;
  • Change in the level of some hormones.

Pregnant or breastfeeding women should avoid using soy lecithin, as there are no comprehensive studies on the possible side effects in these people or on possible harm to the fetus.

People allergic to lecithin or soy should not use the product. If you do not know if you are allergic, take a test. If you experience any symptoms such as difficulty breathing, swollen throat or redness, they may be signs of that you are having an allergic reaction and should seek medical help immediately and discontinue use of the supplement.

Soy lecithin may interact with drugs such as diclofenac. Ideally, do not mix these two substances and talk to your doctor or pharmacist about possible drug interactions.

Thus, soy lecithin is a natural substance that can also be used as a supplement and is present in most of the products we buy daily. The main care that must be taken is the appearance of allergies and watch for possible side effects that are not always observed. Otherwise, it is a totally safe compound. If in doubt, seek professional help.

Additional references:

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Have you ever tried soy lecithin supplementation? Do you know what this substance is and know its indications? Comment below!

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