Soy lecithin is one of the most commonly used additives, although soy is not a preferred ingredient for many people. This ingredient, known as the “building material of fats,” was first isolated from egg yolks in 1846 by the French chemist and pharmacist Théodore Nicolas Gobley.

Its key role is to enable the combination of substances that are difficult to mix, such as water and fat or water and oil, forming stable emulsions.

Lecithin can also be found in other foods such as peanuts, sunflower seeds, yeast, beef, legumes, liver, fish, egg yolk, and others. It is often used in chocolate production to prevent the separation of fats from other ingredients. In recommended doses, it is considered safe for use.

In addition, soy lecithin is used as support in the treatment of gallbladder disease, dementia, age-related memory loss, and head injuries. It also contributes to heart health, especially in individuals prone to high blood pressure. Since soy can be difficult to digest, some people may experience a feeling of fullness after consumption.

Although soy lecithin is generally safe for most people, some may experience undesirable effects in certain situations. Some of the possible side effects include:

• Digestive issues: Since soy can be hard to digest, some people may experience gastrointestinal disturbances, such as bloating, gas, or diarrhea.
• Allergic reactions: People allergic to soy may experience allergic reactions, including itching, rash, swelling, or more severe reactions such as anaphylaxis.
• Drug interactions: There is a possibility of interaction with certain medications. People taking medications or with specific health issues should consult a healthcare professional before using soy lecithin supplements.
• Risk of weight gain: Although soy lecithin may help regulate cholesterol, consuming large amounts can contribute to an increased caloric intake, which may lead to weight gain.

It is important to note that these side effects will not affect everyone, and the reaction to substances is individual.