Some lesser-known herbs also raise concern: "Avoid black and blue cohosh. These can lead to preterm birth and miscarriage," Manglani siad. "Avoid Dong Quai tea, as this tea can cause uterine ...

The study, published in JAMA Network Open, found that drug-induced liver injury, tied with products like green tea extract, turmeric or curcumin, ashwagandha, black cohosh, red yeast rice ...