Researchers are conducting a study to determine the effects of vitamin C on the human immune system.The study involves providing pills that contain vitamin C to one group of human subjects and pills that do not contain vitamin C or other active ingredients to another group of people.The pills that do not contain the vitamin are

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The pills that do not contain vitamin C or other active ingredients are placebos, which are used as a control group in the study. Placebos are used to determine the effects of the active ingredient (in this case, vitamin C) by comparing the results to a group that received no intervention. Antidotes are substances used to counteract the effects of a poison or toxic substance, supplements are typically used to provide additional nutrients to a diet, and treatments are interventions that are intended to produce a specific outcome.

Researchers Are Conducting a Study to Determine the Effects of Vitamin