Milk thistle extract is a natural active compound complex extracted and isolated from the dried, mature fruits of Silybum marianum (a plant belonging to the Asteraceae family). Its core active substance is silymarin, among which silybin is the monomer component with the highest content (accounting for approximately 50%-70%) and the most critical activity. It is also one of the key indicators for measuring the quality of milk thistle extract. During production and preparation, specific processes are usually used for purification to ensure that the silymarin content meets certain standards (e.g., over 80%) so as to guarantee its application value. Currently, a mature industrial extraction system has been established for it, enabling its wide application in multiple fields.
In the food industry, milk thistle extract is mostly used as a functional ingredient to develop foods and related products that meet specific maintenance needs. Its common application forms include:
- Dietary supplements: This is its most major application form in the food field, often existing in the forms of capsules, tablets, and softgels. In the formula, it is usually combined with ingredients such as vitamin E and B vitamins. It provides a convenient nutritional supplement option for people with daily liver maintenance needs (e.g., those who stay up late for a long time or have irregular diets), and the products must comply with national production and labeling standards for dietary supplements.
- Functional beverages: Some brands combine milk thistle extract with homologous ingredients (which can be used both as food and medicine) such as pueraria root, wolfberry, and dandelion to produce herbal teas, solid beverages, or oral liquids. These products integrate flavor and functionality, meeting consumers' demand for natural and healthy beverages. During research and development, emphasis is placed on taste adjustment to reduce the inherent bitterness of the extract.
- Baked goods and snacks: A small number of innovative food products incorporate low-dose milk thistle extract into biscuits, pastries, nut butters, and other products, using "functionality" as a selling point to expand the health attributes of traditional foods. However, due to the limitations of the extract's solubility and its impact on taste, such applications are relatively rare at present. Moreover, the addition amount must be strictly controlled to ensure compliance with the standards for the use of food additives.
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