In an article from Consumer Reports about "Supplement Seals" (July 28, 2016) a comparison chart shows that only ConsumerLab.com purchases its initial test samples in stores, while U.S. Pharmacopeia, NSF International, and UL obtain samples from the manufacturer. This allows ConsumerLab.com to assess a product’s quality at the time of purchase, like a consumer, and avoid possible misrepresentations by manufacturers. The article notes that ConsumerLab.com is one of the three organizations which "have long histories of certifying supplements." ConsumerLab.com is also the only group which freely publishes its testing methods and criteria.
In the video, "The Pros and Cons of Probiotics" on Reuters Health Watch (July 13, 2016), ConsumerLab.com's President, Tod Cooperman, M.D., discusses probiotic supplements and provides tips on what to look for on probiotic labels and how to best store these supplements. Also see ConsumerLab.com's Probiotic Supplements Review for the latest tests of popular products.
For the fifth year, ConsumerLab.com president, Tod Cooperman, M.D., was asked by the U.S. National Institutes of Health (NIH) to talk to nutrition researchers as part of the 2016 Dietary Supplement Research Practicum offered by the Office of Dietary Supplements in June. As part of the "Meet the Watchdogs" panel, Dr. Cooperman was joined by David Schardt of Center for Science in the Public Interest and Anahad O'Connor, consumer health reporter for The New York Times. The practicum is an intensive program to provide fundamental knowledge of dietary supplements to faculty and post-doc students at academic institutions; healthcare practitioners; and others with advanced biomedical degrees.
In "The Science of Natural Healing," a 24-lecture series offered by The Great Courses, Mimi Guarneri, M.D., Founder of the Scripps Center for Integrative Medicine, recommends ConsumerLab.com, noting that she uses ConsumerLab.com "When I'm looking for the best product for my patient." Describing ConsumerLab, Dr. Guarneri notes, "They will actually go into the stores, take the bottles off the shelf and test them. They want to know, 'Does the supplement have the strength, composition, identify and purity that it says on the label.'" The series provides useful information about supplements and how they are used with diet, other forms of natural healing, and modern medicine, to lower cholesterol, treat high blood pressure, treat diabetes, reduce stress, and deal with food sensitivities.
The Journal of the Academy of Nutrition and Dietetics (January 2016) published "Quality Certification Programs for Dietary Supplements," an article comparing the three major U.S. certification programs: ConsumerLab.com, NSF International, and USP. The article describes the programs and the standards they follow. As the article indicates, ConsumerLab.com, started in 1999, is the oldest of the three programs and the only to freely publish its testing methodology and approval criteria, as well as publish independent product reviews. The lead author of the article is Sharon R. Akabas, PhD, of the Institute of Human Nutrition at Columbia University.
The article "Comprehensive Performance Nutrition for Special Operations Forces" in the Journal of Special Operations Medicine (Vol. 15, Issue 4, Winter 2015, pp. 40-53) lists ConsumerLab.com as a resource for dietary supplement evaluation. The article focuses on developing and systematically implementing a comprehensive nutrition program for special operations forces. The lead author is Karen A. Daigle, MS, RD, CSSD, CSCS, a specialist in human performance optimization at the elite level.
In The New York Times article "Vitamin Expiration Dates" (Well Blog, July 20, 2015) ConsumerLab.com president Tod Cooperman, M.D. explains "use by" and "best by" dates on supplement labels and what they indicate about vitamin potency and safety. He also explains the best way to store supplements, such as probiotics.
At the 2015 Florida Academy of Nutrition and Dietetics (FAND) Annual Symposium in Orlando, ConsumerLab.com's President, Tod Cooperman, M.D., was an invited speaker on July 14, giving a one-hour presentation to nutrition professionals entitled "Everything You Always Wanted to Know About Supplements (But Were Afraid to Ask)." The mission of FAND is to empower its members to promote optimal nutrition and health for all people.
The article "Is There Cadmium in Your Cocoa?" (July 8, 2015) on BerkeleyWellness.com cites ConsumerLab.com's tests of popular cocoa powders, dark chocolate bars and supplements which found many cocoa powders to exceed contamination limits for cadmium and/or lead. The Berkeley article explains why cadmium is found in cocoa, and gives recommendations for minimizing the risk when consuming cocoa and chocolate. BerkeleyWellness.com is the website of the Berkeley Wellness Newsletter, which is associated with the School of Public Health at the University of California, Berkeley.
Dietary supplement retailer GNC has entered into an agreement with the New York Attorney General's Office to perform additional tests on its products, including DNA barcode testing of the plants used to make herbal supplements. A press release issued by the office of the New York Attorney General (March 30 2015) included reactions to the agreement from a number of experts in the areas of nutrition and dietary supplements, including ConsumerLab.com President, Tod Cooperman, M.D., who noted "The additional tests outlined by this agreement are a positive step toward making sure that herbal supplements are actually made from the plants on their labels." The announcement follows the New York Attorney General's February 2015 report which found problems with herbal supplements sold by major retailers, including GNC.
On The People"s Pharmacy radio show Herbal Supplements Put to the Test (March 14 2015) ConsumerLab.com president Dr. Tod Cooperman discussed what the New York Attorney General's recent report on faulty dietary supplements does – and does not – reveal about the products that were tested. Dr. Cooperman explains the importance of using appropriate testing methods, which methods are used by ConsumerLab.com and why, and steps consumers can take to avoid problem supplements. You can listen to the full show here (segment begins around minute 7).
The article, "Probiotics Pros and Cons," (March 3, 2015) on BerkeleyWellness.com cites ConsumerLab.com's tests of popular probiotic supplements which found some to contain lower amounts of organisms than listed on the label. The Berkeley article provides an overview of current evidence for various uses of probiotics, including digestion, weight loss and oral health. BerkeleyWellness.com is the website of the Berkeley Wellness Newsletter, which is associated with the School of Public Health at the University of California, Berkeley.
On NPR's The Diane Rehm Show (February 26, 2015) Vitamania author Catherine Price warned consumers not to rely on labels when trying to choose a supplement, citing ConsumerLab.com's tests of aloe, garlic and ashwagandha supplements which found many did not contain what was claimed. Price recommended checking supplements with a third party organization, noting "I particularly like a company called ConsumerLab.com… it is one of the only companies that actually pulls products randomly off store shelves and evaluates them to see if they have what they say they have." You can listen to the full show here (ConsumerLab.com first mentioned around minute 21).
Vitamania, by award-winning journalist, Catherine Price, is a new "must read" book for anyone interested in nutrition. In Vitamania, Price recommends ConsumerLab.com, describing it as a "particularly excellent resource." The book is a fascinating, deep dive into the history of vitamin discovery, vitamin crazes, and vitamin politics. It shows that just when we feel we fully understand our nutritional needs, new discoveries prove us wrong – impressing on us the importance of maintaining an open and discerning mind regarding foods and supplements. (VITAMANIA: Our Obsessive Quest for Nutritional Perfection, Penguin Press 2015).
The New York Times article "Knowing What's in Your Supplements" (Well Blog, February 12, 2015) recommends checking ConsumerLab.com's product reviews when trying to ensure a supplement contains what it claims on the label, after a New York Attorney General's report earlier in the month raised questions about the quality of supplements sold my several major retailers.
An NBC News' Today article asks "Which vitamins and herbal supplements can you trust?" (February 3, 2015). The article comes in the wake of the New York Attorney General's report about faulty herbal supplements sold by major retailers. In the Today article, ConsumerLab.com President, Tod Cooperman, M.D. explains potential problems with herbal supplements and how to avoid them. The article recommends looking for ConsumerLab.com approval, or other third-party certification, before buying a supplement.
At the China International Nutrition and Health Summit 2014 in Beijing in November, ConsumerLab.com's President, Tod Cooperman, M.D., and its Chief Scientific Office for China, Dr. Yongchao Li, presented findings from CL's tests of dietary supplements in the U.S. and announced the upcoming launch of its Chinese-language website - cn.consumerlab.com.
The ABC News Good Morning America report "FDA Cracks Down on Dietary Supplement Company" (November 7, 2014) discussed the problem of heavy metal contamination in herbal supplements ( which are not required to receive FDA approval before being sold on the market) and the FDA's recent lawsuit against one supplement company for failing to heed numerous warnings that it was manufacturing and distributing adulterated supplements. In the report, ConsumerLab.com president Tod Cooperman, M.D., warned consumers that approximately 20- 25% of supplements the company reviews fail testing, often because they don't contain as much ingredient as claimed, or are contaminated with heavy metals. He noted that herbal supplements are more likely to exceed heavy metal limits than other types of supplements.
A new study found that providing access to ConsumerLab.com as part of a "toolkit" to nurse practitioners improved their knowledge and their guidance of patients regarding the use of natural health products. The study was published in the Journal of Pediatric Health Care (Gutierrez, 2014), the official publication of the National Association of Pediatric Nurse Practitioners.
ConsumerLab.com at Food and Nutrition Conference and Expo – ConsumerLab.com's president, Tod Cooperman, M.D., spoke on October 19 about the quality of dietary supplements at FNCE 2014 in Atlanta, run by the Academy of Nutrition and Dietetics. Dr. Cooperman spoke to hundreds of dietitian nutritionists along with noted sports nutritionist, Lisa Dorfman, R.D, focusing on supplements in integrative sports nutrition. The presentations are online.
In the Fox and Friends report, "Do generic drugs work as well as brand name drugs?" (September 27 2014), ConsumerLab.com president Tod Cooperman, M.D., advised consumers of warning signs that may indicate a generic drug is not working properly. The report featured ConsumerLab.com's findings in 2007 that a generic version of the antidepressant Wellbutrin XL 300 (bupropion hydrochloride XL 300) was releasing its ingredient much more quickly than the brand name version of the drug. [If you have experienced a problem which you believe is attributable to differences among generic drugs, please let us know.]
The ABC Nightline report, "Prescription Drugs: Generics, Brand Names Not the Same?" (September 24, 2014) highlighted ConsumerLab.com's tests of a generic version of the antidepressant Wellbutrin XL 300 (bupropion hydrochloride XL 300), which found the drug released its ingredient much more quickly than the brand name version of the drug. In the report, ConsumerLab.com president, Tod Cooperman, M.D., discussed why this can be a problem. The findings led to further investigation by the FDA and eventual removal of two generic versions of bupropion XL 300 from the market. [If you have experienced a problem which you believe is attributable to differences among generic drugs, please let us know.]
The article "Drink's breast enlargement claim 'not backed by science'" in the South China Morning Post (August 13, 2014) quotes ConsumerLab.com President, Tod Cooperman, M.D. who states: "This scam has been going on for many, many years in many different forms with a variety of herbal ingredients that naturally contain isoflavones." For more information about these types of products, see ConsumerLab.com's report on Breast Enhancement Supplements >>
In Goop.com's article "Demystifying the Diet" (July 17, 2014) nutritionist Kelly Dorfman discusses quality issues with multivitamin supplements and notes how difficult it can be for consumers to evaluate ingredient quality without independent information. She recommends subscribing to ConsumerLab.com when trying to compare ingredients and find a quality multivitamin supplement. (See ConsumerLab.com's Multivitamin Review now for tests and quality comparisons).
The article "Fish Oil Boosts Brain Power" on Yahoo Health (July 16, 2014) discusses a study suggesting a benefit of fish oil supplementation in preventing cognitive decline (recently reported by ConsumerLab.com in the Fish Oil Supplements Review) and recommends ConsumerLab.com as a resource for choosing the best fish oil supplement.
Dr. Zorba Paster, a syndicated health journalist, referred to ConsumerLab.com as his "favorite online source" for checking the quality of products in a recent article about protein shakes in the Quad City Times (June 20, 2014). Dr. Paster is also heard on public radio at Zorba Paster On Your Health.
An NBC New York report on the Dangers of Generic Drugs (June 2, 2014) featured ConsumerLab.com president, Tod Cooperman, M.D., discussing the need for the disclosure of more information about generic drugs and supporting a bill proposed in New York State requiring the release of bioequivalence data for all generic drugs sold in the state. If the bill passes, New York would be the first state with this requirement. The NBC report includes an interview with a woman who had used the generic antidepressant (bupropion XL 300), which ConsumerLab.com tested in 2007, leading to further investigation by the FDA and eventual removal from the market. [If you have experienced a problem which you believe is attributable to differences among generic drugs, please let us know.]
For the fourth year in a row, ConsumerLab.com president, Tod Cooperman, M.D., was asked by the U.S. National Institutes of Health (NIH) to talk to nutrition researchers as part of the 2014 Dietary Supplement Research Practicum offered by the Office of Dietary Supplements in June. As part of the "Meet the Watchdogs" panel, Dr. Cooperman was joined by David Schardt of Center for Science in the Public Interest and others. The annual practicum is an intensive program to provide fundamental knowledge of dietary supplements to faculty and post-doc students at academic institutions; healthcare practitioners; and others with advanced biomedical degrees.
In "Doctor Oz Goes Face to Face with Scam Artists" (April 29, 2014) ConsumerLab.com's president, Tod Cooperman, M.D. revealed that a Garcinia cambogia supplement boasting Dr. Oz's (unauthorized) endorsement was "the worst" Garcinia product among those tested by ConsumerLab.com. This information helped Dr. Oz get the product removed from the market. (Test results are found in the Garcinia cambogia Supplements Review>>)
On NPR's Science Friday (November 8, 2013), two experts, David Schardt, Senior Scientist at Center for Science in the Public Interest, and Victoria Maizes, M.D., Executive Director of the Arizona Center for Integrative Medicine, each recommended ConsumerLab.com as a resource when trying to choose among herbal and other supplements. ConsumerLab.com is mentioned at 6 and 8 minutes into the segment "Navigating Dietary Supplement Regulations."
ConsumerLab.com's president, Tod Cooperman, M.D., was asked by the Institute of Human Nutrition at Columbia University's College of Physicians and Surgeons to talk to physicians, dieticians, nutrition researchers, and students at its Micronutrient Supplement Symposium on October 26, 2013 in New York City. Dr. Cooperman spoke on the "Evaluation of Supplement Quality and Safety" and participated in a panel discussion. The goal of the symposium, which was attended by more than 600 individuals, was to "better understand how to counsel patients about dietary patterns and supplement use" and "close the gap on shortfall nutrients."
Presenting at the FDA on June 21, 2013, ConsumerLab.com president, Tod Cooperman, M.D., asked the Office of Generic Drugs for more transparency and honesty regarding generic drug approvals and labeling. Other presenters at the FDA Generic Drug Regulatory Science Initiatives Public Meeting in Silver Spring, MD included FDA officials, industry representatives, and researchers in the generic drug field. The presentations and slides can be watched online — Dr. Cooperman's presentation is in "Part 1" at the 1:16:30 time mark.
ConsumerLab.com president Dr. Tod Cooperman spoke with Whole Psychiatry radio show host Dr. Robert Hedaya (April 2, 2013) about the reasons for taking a supplement, and how to choose the right one while avoiding common quality pitfalls. You can listen to the broadcast "How to Select a Vitamin Supplement."
Stacy Johnson of MoneyTalksNews spoke with Tod Cooperman, M.D. of ConsumerLab.com for the report, "Are Generic Drugs Safe?" (March 20, 2012). The report cites ConsumerLab.com's tests and provides tips for consumers when using generic drugs. (If you have had a problem with a generic drug, let us know.)
A study of controlled-release melatonin formulas funded by the U.S. National Institutes of Health (NIH) utilized ConsumerLab.com to assess the dissolution and purity of the tested melatonin products (Gooneratne, J Pineal Res 2012). One of the interesting findings from the study was that higher dose melatonin caused blood levels to remain elevated for longer than the typical sleep period – increasing the risk of daytime drowsiness, as noted in the Concerns and Cautions section of the Melatonin Supplements Review.
In "What Is In Your Vitamin Supplements," (March 18, 2012) All Seasons Cyclist (a website for avid cyclists) published a review of ConsumerLab.com, putting a subscription to ConsumerLab.com in its "highly recommended" category.
In a segment on The Dr. Oz Show about omega-3s from fish and marine oils (October 1, 2012), Dr. Oz asked Dr. Tanya Edwards of the Cleveland Clinic how consumers can figure out if a supplement is a good one or a bad one. Dr. Edwards, responded, "I tell all my patients to go to ConsumerLab.com." Watch the segment>>>
The Chicago Tribune highlighted ConsumerLab.com's role as an independent source of dietary supplement information in "Dietary Supplements: Manufacturing Troubles Widespread, FDA Inspections Show" (June 30, 2012). The article details a number of manufacturing violations uncovered by the FDA since it began new industry compliance inspections in 2008. ConsumerLab.com president Tod Cooperman, M.D., explains that significant problems have been found with approximately one out of every four products the company has tested and describes some of the reasons for this.
In a related piece, "Dietary Supplement Tips for Consumers," the Chicago Tribune recommends ConsumerLab.com, along with sites such as FDA.gov, to readers who want to "minimize their risk," when it comes to choosing and using a dietary supplement.
Responding to a consumer's question about natural cholesterol control on the drweil.com website (June 30, 2011), Andrew Weil, M.D. noted that the most effective natural product available to help lower LDL cholesterol is red yeast rice. He commented that some products are less effective than others and suggested that consumers see ConsumerLab.com's ratings of red yeast rice products. Full story>>>
The Wall Street Journal's Health Journal cited ConsumerLab.com's latest test results in the article "Multivitamins: So Many Types, So Many Labels" (June 21, 2011). The article explored the need for multivitamins, the discrepancy between Daily Value figures on products and the latest recommended intake levels, and the reliability of label information. Full story>>>
In an article about herbal remedies in a local edition of the Chicago Tribune (June 10, 2011), Dr. Leslie Mendoza Temple, M.D., Director of the Integrative Medicine at NorthShore University HealthSystem, recommended ConsumerLab.com as a "good resource for people looking to learn more about herbs and supplements as well as to compare different supplement brands." Full story>>>
In a web chat on cancer and nutrition hosted by the Daily Press in Virginia (April 28, 2011), certified oncology dietician Lynne Groeger of the Peninsula Cancer Institute was asked to name the most important/trustworthy supplements. In her response, Groeger noted, "I use ConsumerLab.com to help make decisions about good supplements." Full story>>>
ConsumerLab.com, featured in Prevention Magazine article on Yahoo! Health (Feb. 4, 2011) providing insights into the 5 most popular supplements in the recent CL Survey: fish oil, multivitamins, vitamin D, calcium and CoQ10. Full story>>>
Energy Drinks: Too Good to Be True? Dr. Cooperman, President of ConsumerLab.com, featured on The Early Show on CBS where Michelle Miller reports on the claims of the energy drink, "5-hour Energy" and what CL found. (Feb. 7, 2011) See the segment now>>>
Dr. Cooperman, ConsumerLab.com President, featured in Prevention Magazine article on MSNBC.com (January 17, 2011) where he discusses the safety concerns surrounding online diet pills. Full story>>>
Experts recommend ConsumerLab.com for nutrition guidance. Two dietitians (Jenna A. Bell, PhD, RD, LD, and Scott Josephson, MS, RD) and two fitness professionals (Nicki Anderson and Brett Klika) met in a panel discussion on nutrition guidance and recommended ConsumerLab.com as a top "go-to" website at the 2010 IDEA World Fitness Convention>>>
Pharmacology for Rehabilitation Professionals, 2nd Edition (Saunders 2010) by Barbara Gladson, PhD TP OTR, suggests that, when buying supplements, you should check independent tests of quality by ConsumerLab.com. The book explains how various drugs affect patients during therapeutic exercise and includes a chapter on complementary and alternative medicine.
Dr. William Obermeyer, Vice President of Research at ConsumerLab.com featured on CBS News affiliate stations (November 10, 2010) discussing the verification process ConsumerLab.com uses for its independent tests on vitamins and supplements. Watch the segment now >>
The American Medical Association's Archives of Internal Medicine journal (October 25, 2010) published a peer-reviewed article based on ConsumerLab.com's testing of red yeast rice supplements. The article is authored by Ram Gordon, M.D. and David Becker, M.D., both of the University of Pennsylvania Health System, and ConsumerLab.com's Tod Cooperman, M.D. and William Obermeyer, Ph.D. Data in the article includes results from ConsumerLab.com's Product Review of Red Yeast Rice Supplements (2008). ConsumerLab.com is scheduled to publish its next review of red yeast rice supplements in 2011.
Tod Cooperman, MD , President of ConsumerLab.com discussed fish oil supplements on The Dr. Oz Show (September 26, 2010). Watch the segment now >>
Tod Cooperman, MD gave expert testimony before the Senate Special Committee on Aging regarding the quality of dietary supplements on May 26, 2010. Dr. Cooperman's testimony starts at 38:00. Watch now >>
Tod Cooperman, MD (left), President of ConsumerLab.com, appeared on The Dr. Oz Show to discuss problems that can occur with dietary supplements (April 27, 2010).
"One excellent Web site for checking out various supplement brands is www.consumerlab.com, an independent firm that tests supplements to determine if they contain the promised ingredients. Detailed reports are available for a fee. Products that pass ConsumerLab's testing may carry the CL seal on their labels."
ConsumerLab.com appreciates the coverage it has received from many news organizations including those listed below. For a list of news releases from CL click here.
Boston Globe, Chicago Sun-Times, Chicago Tribune, Gannett News Service, Investor's Business Daily, Minneapolis Star Tribune, Newsday, New York Post, Pittsburgh Post-Gazette, Reno Gazette-Journal, San Francisco Chronicle, Stars and Stripes, The Arizona Republic, The Atlanta Constitution, The Atlanta Journal-Constitution, The Baltimore Sun, The Christian Science Monitor, The Detroit Free Press, The Hartford Courant, The Journal News, The Los Angeles Times, The New York Times, The Oregonian, The Orlando Sentinel, The Seattle Times Magazine, The Tampa Tribune, The Wall Street Journal, The Washington Post, USA Today, and Wilmington Morning Star.
Arthritis Today, Better Homes and Gardens, Business Week, Cooking Light, Fitness Magazine, Glamour Magazine, Health Magazine, HerbalGram, Herbs for Health, Kiplinger's Personal Finance, Ladies' Home Journal, Men's Health, Modern Maturity, Money Magazine, Mother Earth News, New Choices Magazine, Newsweek International, O the Oprah Magazine, Parade, Prevention Magazine, Pure Power, Magazine Protégez-Vous, Reader's Digest, Remedy Magazine, Runners World, Self, Shape, Time, USA Weekend, U.S. News and World Report, and Vegetarian Times
AARP Bulletin, Bottom Line Health, Bottom Line Personal, Cosmetics Cop Newsletter, Dr. Andrew Weil's Self Healing Newsletter, Environmental Nutrition, Nutrition Action Newsletter, The Johns Hopkins Medical Letter Health After 50, The Tufts University Health & Nutrition Letter, Townsend Letter for Doctors and Patients, and the UC Berkeley Wellness Letter
"Eye on the Internet" (KRLD 1080/Dallas-Fort Worth); Focus on the Family with Dr. James Dobson; National Public Radio (NPR) All Things Considered, Morning Edition, and Talk of the Nation; The People's Pharmacy (Public Radio); Leonard Lopate Show (WNYC - New York); HealthTalk with Dr. Hoffman (WOR).
ABC News 20/20, CBS Evening News with Dan Rather, CNN Headline News, and NBC Today Show and Weekend Today Show.
Trade & Professional Publications:
American Journal of Nursing, Complementary Practice of Alternative Medicine, Drug Store News, Food Labeling and Nutrition News, Functional Foods, Health Supplement Retailer, Journal of Practical Psychiatry, NACDS Chain Pharmacist Practice Memo, Natural Business, Natural Pharmacy, Nutraceuticals World, Nutritional Outlook, Primary Psychiatry, Psychiatric Annals, The Tan Sheet, Today's Dietician, Today's Health & Wellness, U.S. Pharmacist, Vitamin Retailer Magazine, and Whole Foods.
"Nutrition Concerns in Women" by Sarah Johnston Miller, Pharm.D., BCNSP appearing in the American College of Clinical Pharmacy's Pharmacotherapy Self-Assessment Program version IV, 2002. The Wellness Revolution, Paul Zane Pilzer, John Wiley & Sons, 2002. Nutritional Aspects and Clinical Management of Chronic Disorders and Diseases, Edited by Felix Bronner, CRC Press, 2002. Reader's Digest Cut Your Cholesterol, David L. Katz, M.D. and Debra L. Gordon, Reader's Digest Association, Inc., 2004 Natural Causes, Dan Hurley, Broadway Books, 2006 The New 8-Week Cholesterol Cure, Robert E. Kowalski, HarperTorch, 2006. The World's Greatest Treasury of Health Secrets, BottomLine Books, 2006 What to Eat: An Aisle-by-Aisle Guide to Savvy Food Choices and Good Eating, Marion Nestle, North Point Press, 2006 What Your Doctor Hasn't Told You And The Health Store Clerk Doesn't Know, Edward L. Schneider, M.D. and Leigh Ann Hirschman, Penguin Group, 2006 Understanding Dietary Supplements, Jenna Hollenstein, MD, RD, ELS, University Press of Mississippi, 2007 You: Staying Young: The Owner's Manual for Extending Your Warranty, Michael F. Roizen, Mehmet C. Oz, Free Press, 2007. Instant Health Answers, Edited by Marianne Wait, Readers Digest Association, 2010.