09.01.07
ConsumerLab.com, White Plains, NY, has released the results of a review of milk thistle supplements. The report showed that of the nine milk thistle supplements selected, only two contained the expected amounts of silymarin compounds believed to be the active constituent of milk thistle. Further, ConsumerLab.com found one milk thistle supplement contained only 20% of its expected amount of silymarin, yielding as little as 1.5 mg of silymarin per day—much lower than the 200 to 600 mg generally recommended. Four other products provided approximately two-thirds of the expected silymarin. Another fell short by 16%. A product claiming to be made under the FDA proposed GMPs failed to list the part of milk thistle utilized (normally the seed), violating FDA labeling requirements.
ConsumerLab.com also recently unveiled the results of its review of lutein and zeaxanthin. All but one of the 13 lutein and zeaxanthin supplements tested met quality standards. However, the suggested dosage among products varied widely—from 4 to 24 mg (milligrams) per day, a six-fold difference.
ConsumerLab.com also recently unveiled the results of its review of lutein and zeaxanthin. All but one of the 13 lutein and zeaxanthin supplements tested met quality standards. However, the suggested dosage among products varied widely—from 4 to 24 mg (milligrams) per day, a six-fold difference.