For type O's in the Anti-inflammatory protocols, Yucca is listed with one value as a food and another as a medicine.
Both entries are correct.
Yucca is to be avoided for the reasons mentioned in the food list. Concentrated yucca saponins (the supplement recommended as an anti-inflammatory) are used in the dosages indicated for inflammation. These are two separate substances with differing effects: one is the whole food, the other is an extract of specific active compounds.