Mate, Leaves

Mate, Leaves (CAS Number 977051-24-3) are the dried leaves of Ilex paraguariensis, a subtropical plant native to South America. Traditionally consumed as a brewed beverage in Argentina, Paraguay, and Brazil, mate leaves contain caffeine, polyphenols, saponins, and various other phytochemicals. When used as a food additive or ingredient, mate typically appears as a dried leaf product, extract, or powder form intended to impart flavor or functional properties to food and beverage products.

Mate leaves are primarily used in the beverage industry to create mate tea or mate-based drinks. Beyond traditional tea preparation, mate extracts or powders may be incorporated into energy drinks, flavored waters, dietary supplements, and functional food products. The ingredient is valued for its distinctive bitter, herbal flavor profile and its natural caffeine content, which ranges from approximately 0.7-1.7% by weight. Some manufacturers use mate as a natural flavoring agent in food products seeking to add traditional South American beverage characteristics without using synthetic flavorings.

According to FDA records, there have been zero reported adverse events and zero recalls associated with Mate, Leaves. The ingredient has not been granted Generally Recognized as Safe (GRAS) status by the FDA, which means it lacks formal FDA approval for its use as a food additive in the United States. However, the absence of GRAS status does not indicate safety concerns; rather, it reflects a lack of formal petition or notification to the FDA.

Mate leaves have been traditionally consumed for centuries in South American cultures without documented widespread safety issues at typical consumption levels. The plant contains naturally occurring compounds including caffeine, which provides stimulant effects, and tannins, which are common in many plant-based beverages. As with any caffeinated product, consumption should be considered in the context of total daily caffeine intake.

The European Food Safety Authority (EFSA) has not issued specific safety assessments for mate leaves as a food additive, though mate beverages are legally marketed in European Union member states as traditional herbal products under existing regulations.

Mate, Leaves does not hold FDA GRAS status in the United States. This means products containing mate as an additive may be marketed under the dietary supplement regulations (DSHEA) or as conventional foods with mate as an ingredient, but the additive itself has not undergone the formal FDA review process for food additive approval.

In South America, particularly in Argentina and Paraguay, mate is a well-established traditional food ingredient with established regulatory frameworks. The ingredient is approved for use in various food categories in these regions. In the European Union, mate products marketed as traditional herbal infusions are permitted under Directive 2004/24/EC.

The lack of FDA GRAS status may limit the use of mate as a direct food additive in certain food categories in the United States, though its use in dietary supplements and conventional foods remains permissible under existing food and supplement regulations.

Scientific research on mate has focused primarily on its chemical composition and traditional uses rather than its safety as a processed food additive. Studies have documented the presence of polyphenols, caffeine, and saponins in mate leaves. Pharmacological research has explored mate's antioxidant properties and metabolic effects, though most research examines whole mate beverage consumption rather than isolated additives or extracts.

The absence of adverse event reports and recalls in FDA databases, combined with centuries of traditional use, suggests mate leaves present a low safety concern at typical consumption levels. However, the limited formal safety assessment data and lack of GRAS status indicate that additional regulatory review or petition would be required for expanded food additive applications in the United States.