One concern about taking vitamins, herbal remedies, or dietary supplements has been the fact that there is no real regulation of the industry. According to Steve Mister, president and CEO for the Council for Responsible Nutrition, most companies are responsible about testing their products to ensure that they contain the raw ingredients they claim to include, but there have been reported instances where labels don't match the products, as well as complaints of contamination.

In response to those issues, the FDA has issued a new rule that companies who produce these types of products must test the strength and purity of the ingredients in their products, and must also make sure they identify all of the ingredients on the label. If they fail inspection, they'll need to revise their labels or may even face litigation. Manufacturers have three years to comply to the new rules.

Critics say that, while this addresses the labeling issue, there's still no way for consumers to know if the supplement they're taking is safe for them or if it even works. So while the new rule will ensure the ingredients in supplements are consistent, it's still up to the consumer to do the research and find out if a product is right for them.