Which statement by a client indicates an understanding of herbal supplement use?

The statement indicating an understanding of herbal supplement use is that taking echinacea can improve the immune system. This reflects a recognition of how certain herbal supplements, like echinacea, are traditionally used for their potential benefits, particularly in supporting immune function.

This approach acknowledges the role of herbal supplements as complementary options rather than replacements for medical treatments. Echinacea is often cited in research and traditional medicine for its potential effects in reducing the duration or severity of colds by boosting immune responses.

Awareness of such uses demonstrates an understanding that while herbal supplements can be beneficial, they should be used thoughtfully and ideally under the guidance of a healthcare professional, especially considering their effects and interactions with other medications.