
Did you know that dietary supplement use is incredibly popular in the United States? It’s true! More than half of adult Americans are using them to supplement their diets. However, despite their popularity, scientific research has shown that these supplements actually provide minimal health benefits and can even pose some risks. In fact, adverse events and harmful effects from supplements have been on the rise in recent years. While the FDA does regulate dietary supplements, they do not require manufacturers to establish safety or efficacy before going to market. Thankfully, there are independent organizations that offer quality certification programs for dietary supplement makers to meet higher standards. As a dietitian, it’s important to educate your clients about these regulations and certifications, encouraging them to inspect labels for certification seals. Additionally, resources like ConsumerLab.com and the Natural Medicines Comprehensive Database can help in researching and evaluating dietary supplements.

Dietary supplement use in the United States
Dietary supplement use is quite popular in the United States, with over half of adult Americans using them. People turn to dietary supplements for a variety of reasons, including to fill nutrient gaps in their diet, to boost their overall health, and to support specific body functions. These supplements come in various forms, such as vitamins, minerals, herbal extracts, and amino acids.
Statistics on dietary supplement use
According to the National Health and Nutrition Examination Survey (NHANES), conducted by the Centers for Disease Control and Prevention (CDC), approximately 52% of adults in the United States reported using dietary supplements between 2003 and 2006. The survey also revealed that women, older adults, and those with higher education and income were more likely to use dietary supplements.
Reasons for dietary supplement use
People use dietary supplements for a variety of reasons. Some individuals may take supplements to address nutrient deficiencies, especially if they have specific dietary restrictions or an inadequate intake of certain nutrients. Others may use supplements to support their overall health and well-being, as they believe that these products can provide an extra boost to their immune system or energy levels. Additionally, some individuals may turn to supplements to target specific health concerns, such as improving joint health or promoting liver function.
The dietary supplement industry
The dietary supplement industry is a thriving and lucrative business in the United States. In fact, it is a multibillion dollar industry that continues to grow year after year. As more and more Americans are seeking alternative and complementary health solutions, the demand for dietary supplements has skyrocketed.
Size and growth of the industry
According to the Nutritional Business Journal, the dietary supplement industry in the United States was worth an estimated $41.5 billion in 2019, and it is projected to reach $56.7 billion by 2024. This demonstrates the significant growth potential of the industry and the increasing popularity of dietary supplements among consumers.
Key players in the industry
The dietary supplement industry is comprised of a wide range of manufacturers, distributors, and retailers. Some of the key players in this industry include well-known companies such as Amway, Pfizer, Bayer, and Herbalife. These companies often produce and market a variety of dietary supplements, targeting different demographics and health concerns.

Health benefits and risks of dietary supplements
While many people believe that dietary supplements offer a myriad of health benefits, the scientific literature suggests otherwise. Studies have shown that most dietary supplements provide minimal health benefits when compared to a well-balanced diet. In fact, excessive intake of certain supplements can even pose risks to one’s health.
Limited health benefits
Numerous studies and meta-analyses have consistently demonstrated that most dietary supplements do not provide significant health benefits when consumed by healthy individuals. For example, large-scale studies on multivitamins have not shown consistent evidence of preventing chronic diseases or promoting longevity. Similarly, antioxidant supplements, such as vitamins C and E, have not shown consistent benefits in reducing the risk of cardiovascular diseases or cancer.
Potential risks and adverse events
While dietary supplements are often perceived as safe, it is important to acknowledge that they can carry potential risks and adverse events. The National Poison Data System reports an increasing trend in the number of adverse events related to dietary supplements in recent years. Some common risks associated with these products include allergic reactions, interactions with medications, overdoses, and contamination with harmful substances.
Regulation of dietary supplements
The regulation of dietary supplements in the United States is governed by the Dietary Supplement Health and Education Act (DSHEA) of 1994. This act places the responsibility on manufacturers to ensure the safety and labeling accuracy of their products.
Overview of the Dietary Supplement Health and Education Act (DSHEA)
The DSHEA defines dietary supplements as products that are intended to supplement the diet and contain one or more dietary ingredients, such as vitamins, minerals, herbs, or other botanicals. Under this act, dietary supplements are not subject to the same rigorous testing and approval process as prescription drugs. Instead, manufacturers are responsible for ensuring the safety and labeling accuracy of their products.
FDA’s role in regulating dietary supplements
The Food and Drug Administration (FDA) is the federal agency responsible for overseeing the regulation of dietary supplements. While the FDA does have authority to take action against products that are misbranded or adulterated, it does not conduct pre-market review or approval of dietary supplements. Instead, the FDA relies on post-market surveillance and enforcement activities to address safety concerns and ensure compliance with regulations.
Lack of safety and efficacy requirements
One of the key criticisms of the current regulatory framework for dietary supplements is the lack of safety and efficacy requirements. Unlike pharmaceutical drugs, which must undergo extensive clinical trials to demonstrate their safety and efficacy, dietary supplements can be marketed without such evidence. This means that consumers may unknowingly purchase products that are ineffective or potentially harmful.
Quality certification programs for dietary supplements
To combat the concerns surrounding the safety and efficacy of dietary supplements, independent organizations offer quality certification programs. These programs aim to establish higher standards for dietary supplement manufacturers to meet.
Importance of quality certification
Quality certification programs for dietary supplements play a crucial role in ensuring that consumers have access to products that meet certain standards of safety, quality, and efficacy. These programs provide an additional layer of assurance and help consumers make more informed decisions when selecting dietary supplements.
Independent organizations offering certification
Several independent organizations offer quality certification programs for dietary supplement manufacturers. One such organization is the United States Pharmacopeia (USP), which sets quality standards for dietary supplements through its USP Verified program. Another organization is NSF International, which offers certification through its NSF Certified for Sport program. These certifications indicate that the products have been tested for quality and meet specific criteria.
Higher standards for certified products
Dietary supplements that have obtained certification from reputable organizations are generally held to higher standards. These products are more likely to have undergone testing for purity, potency, and the absence of contaminants. The certification seals on the products serve as visible indicators of their quality and can provide consumers with more confidence in their purchases.
Role of dietitians in educating about dietary supplements
As experts in food and nutrition, dietitians play a crucial role in educating their clients about the use of dietary supplements.
Responsibility of dietitians
Dietitians have a responsibility to provide evidence-based, accurate, and unbiased information to their clients regarding dietary supplements. By staying up-to-date with the latest research and regulations, dietitians can guide their clients in making informed decisions about supplement use and help them navigate the complex landscape of the dietary supplement industry.
Educating clients about regulations
One of the key areas where dietitians can make a significant impact is by educating their clients about the regulations surrounding dietary supplements. By explaining the limitations of the current regulatory framework and the potential risks associated with using unregulated products, dietitians can empower their clients to make safer and more informed choices.
Promoting inspection of labels
Another important role of dietitians is to promote the inspection of labels before purchasing dietary supplements. Dietitians can guide their clients in understanding the importance of looking for certification seals from reputable organizations, as well as reading and interpreting the information on the labels. This can help clients identify products that have undergone testing for quality and meet certain standards.
Resources for researching and evaluating dietary supplements
Researching and evaluating dietary supplements can be a challenging task due to the vast number of products available on the market. Fortunately, there are resources available that can help consumers make more informed decisions.
Introduction to ConsumerLab.com
ConsumerLab.com is an independent organization that conducts product testing and provides information on dietary supplements, vitamins, and other health-related products. They conduct rigorous testing to ensure the quality and purity of the products they review. ConsumerLab.com offers a subscription-based service that provides access to their comprehensive reviews and laboratory results.
Overview of the Natural Medicines Comprehensive Database (NMCD)
The Natural Medicines Comprehensive Database (NMCD) is a reputable resource that provides evidence-based information on dietary supplements, including their efficacy, safety, and potential interactions with medications. The database contains monographs on a wide range of dietary supplements and is regularly updated with the latest research findings.
Benefits of utilizing these resources
Utilizing resources such as ConsumerLab.com and the Natural Medicines Comprehensive Database (NMCD) can greatly assist consumers in researching and evaluating dietary supplements. These resources provide reliable and unbiased information, helping individuals make informed decisions about product quality, safety, and efficacy. By consulting these resources, consumers can gain a better understanding of the supplements they are considering and choose products that align with their individual health goals and needs.
In conclusion, dietary supplement use is widespread in the United States, and the dietary supplement industry is a significant player in the economy. However, the health benefits of most dietary supplements are minimal, and there are potential risks and adverse events associated with their consumption. The regulation of dietary supplements presents challenges, as safety and efficacy requirements are lacking. Quality certification programs offered by independent organizations can help establish higher standards for dietary supplement manufacturers. Dietitians play a crucial role in educating clients about dietary supplements and promoting safety through information about regulations and quality certifications. Resources like ConsumerLab.com and the Natural Medicines Comprehensive Database (NMCD) can aid consumers in researching and evaluating dietary supplements. By being knowledgeable and discerning consumers, individuals can make informed decisions about dietary supplement use and prioritize their health and well-being.
