VC Product Introduction

Basic Information

• Chemical Nature: Riboflavin is a yellow, crystalline compound with the chemical formula C17​H20​N4​O6​. It is heat-stable but sensitive to light, especially ultraviolet light, which can decompose it and reduce its biological activity.
• Source: It is widely present in various foods. Rich sources include animal products (such as milk, eggs, liver, and lean meat) and plant-based foods (like green leafy vegetables, legumes, and whole grains).

Physiological Functions

1. Energy Metabolism Support

    

   Riboflavin acts as a precursor of two important coenzymes: flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). These coenzymes participate in the metabolism of carbohydrates, fats, and proteins, helping to convert nutrients into usable energy for cells.
    
2. Maintenance of Mucous Membranes and Skin Health

    

   It contributes to the integrity of the mucous membranes of the mouth, eyes, and respiratory tract. Adequate intake of vitamin B2 can prevent inflammation such as angular cheilitis, glossitis, and conjunctivitis. It also supports the health of the skin and helps in wound healing.
    
3. Antioxidant Effect

    

   As a component of FAD, riboflavin participates in the activity of glutathione reductase, an enzyme that maintains the level of reduced glutathione in the body. This helps to neutralize free radicals and reduce oxidative damage to cells.
    

Deficiency and Toxicity

• Deficiency Symptoms: Long-term insufficient intake may lead to symptoms such as cracked lips, sore tongue, eye fatigue, photophobia, and skin rashes. Severe deficiency can also affect the normal function of the nervous system and hematopoietic system.
• Toxicity: Vitamin B2 has a low toxicity risk because excess amounts are readily excreted in urine, which may cause urine to turn bright yellow—a harmless side effect. No serious adverse effects have been reported with high-dose oral intake.

Recommended Intake