Another important health benefit to Sangre de Grado is its potential as a powerful antioxidant herb.
An article published in the Nutrition Journal in 2010 entitled The total antioxidant content of more than 3100 foods, beverages, spices, herbs and supplements used worldwide, by Monica H Carlsen, Bente L Halvorsen, Kari Holte, Siv K Bøhn, Steinar Dragland, Laura Sampson, Carol Willey, Haruki Senoo, Yuko Umezono, ChihoSanada, Ingrid Barikmo, NegaBerhe, Walter C Willett, Katherine M Phillips, David R Jacobs, Jr, and Rune Blomhoff, found that Sange de Grado had the highest antioxidant content of the 59 herbal products tested in the database.
Sange de Grado tested at 2897.1 mmol/100 g, much higher than the next highest herb formula Triphala at 706.25 mmol/100 g.
Other antioxidant rich products are Triphala, Amalaki and Arjuna from India and Goshuyu-tou, a traditional kampo medicine from Japan, with antioxidant values in the range of 132.6 to 706.3 mmol/100 g.