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HPRC Fitness Arena: Dietary Supplements
Protein powder supplements are a popular source for packing on muscle. The September 27, 2010 edition Health section of the L.A. Times contains an article that poses the question of how much supplements, if any, should one use in building muscle mass?
Wandering down the aisle of a store looking for a dietary supplement can be overwhelming and intimidating. There are so many to choose from, and we often have to make our choices based on advertising claims and rely on the manufacturers for ingredient information. Does the supplement actually have the ingredients claimed on the label? Will it have the reported effect on our health?
The Natural Medicines Comprehensive Database is the “scientific gold standard” for evidence-based information on dietary supplements and natural medicines, including drug interactions, effectiveness, safety and use, and more. HPRC has partnered with Natural Medicines Database to allow healthcare providers, Warfighters, and military families to search this comprehensive database in order to make informed decisions about dietary supplement use. The Natural Medicines Database also has “Natural MedWATCH,” which allows users to report an adverse event associated with the use of dietary supplements or natural medicines so that they can then forward the report on to the appropriate regulatory agency.
By going to the HPRC homepage, users can access any of the three database choices provided: Natural Medicines Comprehensive Database for Health Professionals, Consumers, or Natural MedWATCH. After choosing one of the sites, first-time users should sign up for an account, which is done with an active DoD email address. Once inside this vast database, a user can search for an individual natural medicine ingredient of interest or a brand name product.
The professional version of the database includes:
- Evidence-based monographs available for individual natural ingredients.
- Scientific names of ingredients
- Information on safety, effectiveness, mechanism of action, adverse reactions, interactions, and dosage/administration (which are not necessarily recommended or safe doses) of ingredients
- Patient handouts
- Brand-name product searches by ingredient
- “Natural Product Effectiveness Checker” for medical conditions
- “Natural Product Drug Interaction Checker” for a list of drugs/natural products interactions
- Comprehensive information on brand-name products, including ingredient lists and summary reports on effectiveness, interactions, and adverse effects.
- Up-to-date information for over 60,000 brand name products
The consumer version, for military families and Warfighters, contains the same research-based information on herbal remedies, dietary supplements and other natural products, but in an easier-to-understand version. An important point consumers should be aware of is that it may be necessary to research each individual ingredient in a product before making a decision to use it for health benefits.
So, if you want to find credible, evidence-based information on dietary supplements and/or natural products, search the Natural Medicines Comprehensive Database. Evaluating natural health products can be daunting and there is no other comprehensive, reliable site like it to guide you in making your decision.
In a report from the September 2010 issue of Consumer Reports®, the twelve most dangerous dietary supplements posing health risks have been identified. According to the report, these are dietary supplements which are taken by millions of Americans and have been found to cause serious health problems, including cardiovascular, liver, and kidney problems.
When you choose a multivitamin or supplement from the store, have you ever wondered how to choose? Or if there’s any regulation to ensure the one you choose is safe, and that you’re getting what you’re paying for? Regulation is perhaps the least understood aspect of the dietary supplement industry. We, here at HPRC, hope we can shed some light on the matter. Look for the quickest way to ensure quality and safety in your supplements at the end of the article.
Dietary supplements are regulated, but not as strictly as many might want. Oversight of dietary supplements began with the 1994 Dietary Supplement Health and Education Act (DSHEA). Since supplements are intended to supplement one’s diet, they are regulated the way food is, and not as drugs are. Under DSHEA, the U.S. Food and Drug Administration (FDA) regulates dietary supplements by holding manufacturers accountable in five important areas: Manufacturers are required to ensure that the supplement is safe; make truthful claims; abide by current Good Manufacturing Practices (cGMPs); submit to FDA all reports of serious adverse events, and notify FDA before it markets a supplement containing a “new dietary ingredient” (NDI).
What consumers should know is that manufacturers cannot sell unsafe, ineffective supplements; they have to document that their product will not harm anyone, and provide convincing evidence that the product does what it claims. To further ensure safety and effectiveness, the FDA closely regulates supplement labels for accuracy and honesty. All information on the label must be truthful and conform to all FDA standards. It has to list the sources of all components, and the amount of key nutrients and ingredients. Manufacturers are also required to report to the FDA before marketing supplements containing new dietary ingredients, which must have data supporting safety of the ingredient. The FDA also regulates manufacturing standards using the current Good Manufacturing Practices (cGMP) to ensure product quality and safety. Violation of cGMP is a violation of the law. Lastly, the FDA requires manufacturers to report on serious adverse events that may occur from consumers using their products.
Despite this oversight, there’s a misconception that dietary supplements are not regulated. This could be because supplements don’t require pre-market approval, and the post-market responsibility of FDA simply ensures compliance with the regulations listed above. The downside of this is that some unsafe and contaminated products end up on the market. Once there, the FDA has to prove that the product is unsafe (or show that the information on its label is untruthful or misleading), before it can be removed from the market. Also, although supplement labels are highly regulated, the content of separate brochures and fliers is not subject to FDA rules.
Enforcing regulations take time and resources. Since the cGMP rule went into effect in June 2008, the FDA has conducted approximately 55 inspections for compliance with the new regulations – and in light of the thousands of companies manufacturing supplements, there’s some dissatisfaction with the progress of the FDA.
So how can you protect yourself, as a consumer, from ineffective or even potentially unsafe supplements? There’s a simple answer: When purchasing dietary supplements, choose products approved by independent organizations that offer certification or verification. Look for supplements whose labels display a seal from the United States Pharmacopeia (USP), the non-profit NSF International, or the Natural Products Association (NPA). Since these verifications are voluntary and are performed at the company’s expense, you can be certain that approved products have little or no contaminants, that the ingredients are present in the labeled amounts, and the labels are accurate.
The June 29 edition of the Telegraph.co.uk published an article titled Caffeine can boost endurance racing. The article cites research done by Coventry University and reports that high doses of caffeine can increase muscle power and endurance.
Study author Dr Rob James, from the University of Coventry's Department of Biomolecular and Sports Science, said: "A very high dosage of caffeine, most likely achieved via tablets, powder or a concentrated liquid, is feasible and might prove attractive to a number of athletes wishing to improve their athletic performance.
"A small increase in performance via caffeine could mean the difference between a gold medal in the Olympics and an also-ran."
The FDA does not strictly regulate dietary supplements. As a result, supplements may not be as pure as stated on the label and may have potentially harmful contaminants. When purchasing dietary supplements, choose products approved by United States Pharmacopeia (USP) or other reputable sources.