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Alerts

FDA advises consumers to stop using any supplement products labeled as OxyElite Pro or VERSA-1. Please see the following advisories: FDA -10/08/13, FDA - 10/11/13 and CDC - 10/08/13.

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Announcements

New article on reporting side effects of supplements
Just published in The New England Journal of Medicine: A recent article brings up dietary supplement issues you need to be aware of and discusses how dietary supplement side effects could be monitored better. A PDF of the April 3rd article is available free online.

3rd International Congress on Soldiers’ Physical Performance
August 18-21, 2014
The ICSPP delivers innovative scientific programming on soldiers’ physical performance with experts from around the world.

DMAA list updated for April 2014

Fueling Performance Photo Campaign
Share photos of how you fuel your performance and be featured on our Facebook page!

Dietary supplement module
Earn continuing education credits (if eligible) for this two-hour online module.

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HPRC Blog

Welcome to the HPRC Blog. We've got lots of information here, from quick tips to in-depth posts about detailed human performance optimization topics.

HPRC Fitness Arena: Dietary Supplements

Energy drinks and adolescents – a risky combination

Energy drinks and adolescents can be a dangerous combination, especially because of the amounts of caffeine and other stimulants that may be in these products. Educating youth about potential risks is very important.

Energy drinks have been in the news lately, mostly due to media reporting on a group (doctors, researchers, scientists, and politicians) writing to the Food and Drug Administration (FDA) to express concern over the use of these drinks by adolescents. Much of the concern has to do with the amounts of caffeine in these drinks, among other issues. Energy drinks also may contain large amounts of other stimulants, including guarana, yohimbe, yerba mate, kola nut, methylsynephrine, Citrus aurantium (Bitter Orange), and Ma Huang (ephedra). Although listing the total amount of caffeine on the label would help, consumers should be aware that there are often other stimulants in energy drinks.

The American Academy of Pediatrics has written several articles over the last year about the potential risks associated with the adolescent population using energy drinks. One very recent article outlines the harmful effects of energy drinks on adolescents, including increased heart rate, high blood pressure, anxiety, digestive problems, sleep disturbances, and dehydration. The withdrawal effects after habitually consuming energy drinks is also an issue, as it can lead to headaches and attention problems. Also, the ingestion of energy drinks by adolescents who take prescription drugs for Attention Deficit Hyperactivity Disorder (ADHD) or who have eating disorders or diabetes is another topic of concern.

The amount of caffeine contained in energy drinks is not regulated, as the FDA does not regulate caffeine in foods or beverages, except that the maximum concentration for caffeine in cola beverages is 71 mg per 12 oz. The amount of caffeine in energy drinks ranges from 50 to more than 500 mg per can or bottle. The American Academy of Pediatrics recommends that children and teens drink no more than 100 mg of caffeine per day. To put that in perspective, an eight-ounce cup of coffee typically contains about 100 mg of caffeine (or more), and the most popular caffeine-containing sodas contain around 30 to 55 mg in a 12 oz. can. Not knowing how much caffeine and other stimulants are contained in energy drinks is a potential health threat.

Furthermore, the caffeine and other stimulants contained in the energy drinks, when combined with alcohol, can mask the symptoms of alcohol intoxication, potentially leading to risky behavior. The American Academy of Pediatrics advises parents and doctors to talk to children about the dangers of mixing alcohol and energy drinks, and the Centers for Disease Control and Prevention has a fact sheet on the potential risks.

Parents, educators, and healthcare professionals need to focus on educating adolescents about potential problems associated with consuming these high-stimulant products. Companies are heavily marketing their products by featuring athletic superstars, which causes children and adolescents to confuse energy drinks with sports drinks. Generally speaking, adolescents don’t need energy drinks, and they should be made aware of the potential dangers. It’s definitely a case of “buyer beware.”

Visit HPRC’s Operation Supplement Safety (OPSS) to access resources on the informed use of dietary supplements.

Raspberry ketone—the latest weight-loss craze

Raspberry ketone is a food additive and aromatic compound now being sold as a dietary supplement/ingredient touted to reduce fat and weight. Find out the facts and the science behind it all.

Raspberry ketone, touted to be an effective fat-loss and weight-loss supplement, occurs naturally in various red raspberries. The raspberry ketone in supplements is probably produced in the laboratory, as it would be too expensive to extract it from real raspberries. FDA recognizes that raspberry ketone as a food additive is “Generally Recognized as Safe” (GRAS) to consume in small amounts. However, the long-term effects in humans who consume it as a supplement are unknown. For more information, read HPRC’s InfoReveal on “Raspberry ketone.”

Dietary supplements and surgical procedures

Be careful about using dietary supplements if you are planning to have surgery or if you have recently had surgery. Some ingredients could cause problems.

Be extra cautious when taking dietary supplements before and after surgical procedures; some products can have serious negative effects on surgical procedures. For instance, certain supplements prevent certain blood cells (platelets) from clumping, resulting in excessive bleeding during surgery. Some of the ingredients commonly found in supplements that hinder platelet aggregation are ginko biloba, saw palmetto, glucosamine, black tea, fish oil, and garlic. If you are having a surgical operation, consider abstaining from these items or consume these items in moderation a few weeks before and after the procedure. For more a complete list of products and additional information, including other surgical risks associated with dietary supplements, read this web page from the Natural Medicines Comprehensive Database. And always read product labels carefully; many include warnings of potential medical risks, including the length of time prior to surgery that you should discontinue use.

What’s the story with deer velvet and IGF-1?

Questions about deer velvet and IGF-1? Are they banned in the military? Read the OPSS FAQs to find out.

Both deer velvet and IGF-1 have been in the news lately, and HPRC has received many questions about what these are and whether they improve athletic performance. Does deer velvet contain IGF-1? Read this OPSS FAQ about deer velvet to find out. To learn what IGF-1 is and whether it is banned in the military, read more in the OPSS FAQ about IGF-1. Be sure to check back often, as we add answers to other questions about ingredients in performance and weight-loss supplements and how to choose supplements safely.

DMAA products continue to dwindle

HPRC has updated its list of DMAA-containing products, showing that 20 more products have been discontinued or reformulated to exclude the ingredient.

Since we first posted our list of DMAA-containing dietary supplement products in December 2011, the number of products being manufactured with this ingredient has continued to decline. Our most recent update shows only 79 dietary supplement products still being manufactured with DMAA; over the past 13 months more than 110 products have been discontinued or reformulated to exclude DMAA. Our search does still occasionally turn up products with DMAA that were not on our previous lists, but this is increasingly rare, with only four additions since our last update in October 2012.

Green coffee beans—health or hype?

Weight-loss supplements with green coffee beans have been popular lately, but some products have more in them than just coffee beans. Get the facts about ingredients and always read product labels carefully.

It can be tough figuring out the truth about the health benefits of many natural products. One product that’s getting a lot of attention these days is green coffee beans. As a Warfighter looking for ways to optimize your performance or perhaps drop some weight quickly, it’s easy to be overwhelmed by all the marketing hype and claims, especially if it’s an appealing message. Make sure you get the facts.

Green coffee beans are the raw, unroasted seeds or “beans” of the Coffea plant. They contain a chemical called chlorogenic acid (CA) that supposedly offers some health benefits. Roasting reduces the amount of CA in coffee beans; as a result, green coffee beans contain more CA than the roasted beans you use for your morning coffee. Some research suggests that CA might prevent heart disease, diabetes, and high blood pressure, and help with weight loss. But it’s important to note that most of this research is preliminary, and there just isn’t enough evidence to say that CA will definitely help with any of these health conditions.

Although no serious side effects have been reported from green coffee beans in their natural form, some dietary supplement products containing green coffee beans have been found to contain undeclared drugs, insects, and mold. Of the 126 products containing green coffee beans ranked by the Natural Medicines Comprehensive Database, 40 have been assigned a rating of “1” or “2,” which indicates there are serious concerns about their safety and effectiveness. None have a rating in NMCD’s green zone, which suggests that there are some concerns about them all. Note also that green coffee beans are not always the only active ingredient, so be sure to check the product label.

It’s also important to note that green coffee beans contain caffeine. Side effects of consuming too much caffeine are all too familiar—difficulty sleeping, rapid or irregular heartbeat, nervousness, nausea, and vomiting. Pregnant and breastfeeding women, or those who have been diagnosed with certain medical conditions (including anxiety, diabetes, irritable bowel syndrome, high blood pressure, or osteoporosis) should check with their doctor before consuming green coffee beans. For more information on caffeine, read the OPSS FAQ on caffeine.

Questions about C4 Extreme?

Will C4 Extreme cause you to “pop positive” on a drug test? Read the OPSS FAQ to find out the answer.

HPRC has received many questions about C4 Extreme and whether or not it will result in a positive drug test. We have posted an OPSS FAQ to answer the question. Be sure to check back often as we add answers to other questions about ingredients in performance and weight-loss supplements and how to choose supplements safely. If you have additional questions about a particular dietary supplement ingredient or product, please use our “Ask the Expert” button located on the OPSS home page.

Caffeine in supplements – how much?

Some of the most popular dietary supplements sold on military bases may give inaccurate—or no—information about caffeine content on their labels.

A Military Times article reports on a recent study of more than 30 of the most popular dietary supplements (in capsule form) sold on military bases analyzed to determine their caffeine content. Of the 20 supplements that listed caffeine as an ingredient on their labels, six did not specify the amount. These same six contained high amounts of caffeine (210-310 mg per serving)—three or more times the amount permitted by law in soft drinks. Five others revealed significantly different amounts—some more, some less—than the quantity stated on the product label.

Consuming too much caffeine can result in health issues. And if you don’t know how much is in the supplement you’re taking, it could be easy to overdo it if you also drink coffee or energy drinks. Visit the Operation Supplement Safety (OPSS) FAQ on caffeine for additional information.

Air Force studying caffeinated drinks

Air Force conducting study on 12 bases on the use of caffeinated drinks.

The Air Force is conducting a study on the use of energy drinks among active-duty Air Force personnel and civilians. According to the Army and Air Force Exchange Service (AAFES), Monster Energy was the top-selling cold beverage last year in the AAFES worldwide, and due to continuing concerns about the effects of energy drink consumption, the Air Force has started its own survey that targets 12 bases in Europe and the U.S. For the complete story, read the article in Stars and Stripes.

Relaxation drinks: Problematic for teens?

Are relaxation drinks safe for children and adolescents? Recent reports highlight possible problems.

A number of relaxation beverages have been introduced into the market and are now available to consumers of any age from convenience stores, college campuses, and online vendors. There are recent reports of negative side effects in children and teens from the consumption of these drinks. There are two significant issues with relaxation drinks: First, some of their ingredients, particularly melatonin, have not gone through the Food and Drug Administration’s (FDA) process required for all food ingredients to be designated as safe or “generally recognized as safe” (GRAS). Second, other ingredients such as valerian and caffeine do not have established serving sizes or doses for this type of use. An additional concern is that it is unknown how ingredients might interact. Parents should be concerned about this.

It also may be hard to tell the difference between these drinks and those that have been recognized as safe because their bottles and labels are sometimes similar. A typical consumer may not realize which drinks contain ingredients that might have negative effects. Therefore it’s important to be aware what is in these drinks and to read all labels carefully. Many of these drinks have warnings on their labels that they are not intended for children. For more information about relaxation drinks, their ingredients, and their effects, check out HPRC’s article. Also, visit OPSS (Operation Supplement Safety) for more information about dietary supplement safety and specific ingredients.

Remember, there’s no magic beverage for relaxing or reducing stress. Instead, address those issues in order to get to the bottom of the stress you or your teen might be experiencing. There are strategies that you or your child can use to relax and de-stress in a healthy way. For even more ideas, visit the stress control section of HPRC’s website.