This loophole exists because of heavy lobbying by the &quot;neutraceutical&quot; and &quot;natural supplement&quot; industry. For phamaceuticals, the FDA requires that they be demonstrated &quot;safe&quot; and &quot;effective&quot; through clinical testing. (Most new drugs fail in clinical testing, incidentally.)  For &quot;neutraceuticals&quot;, only &quot;safe&quot; is required, and clinical testing is not required.