Should I take a supplement that has no information on “dose and response” in people?

Taking an untested supplement is purely hopeful and no reliable outcome should be expected. These products can also be dangerous, as supplement quality is often unregulated. If a product lacks a USP, NSF, or ConsumerLab verification mark, its strength and purity cannot be independently confirmed. As such, side effects should be watched carefully, as a lack of testing and quality control, means that no reliable information is available on side effects.

It should be mentioned however, that this handbook is still a working document and new entries will be added as additional supplement data is identified. These can be highlighted to the author through Discussion.