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The lure of Jack3d

HPRC Fitness Arena: Dietary Supplements
This relatively recent supplement targeting the exercise performance market has been growing in popularity, but the limited information about its “recipe” and the severe warnings on its label and website should make potential users think twice.

Jack3d (sometimes known as “Jacked”) is, according to the bottle, a “powerful pre-workout supplement that increases your capacity to perform.” HPRC did an extensive search for evidence-based information on Jack3d and found that all the apparently scientific literature on the product led to its promotional website, where they offer their own reviews. Anyone taking supplements should know that there have been reports about “tainted” dietary supplements containing active ingredients of FDA-approved drugs or other compounds that are not classified as dietary supplements. But there are still testimonials, blog entries, and bodybuilding forums touting the effects of Jack3d. It’s important to know exactly what is in Jack3d and that there isn’t any information on how much of each individual ingredient is in a serving.

The label of Jack3d says that it contains 4145 mg of a “Proprietary Blend” in one scoop, with 45 servings per container. In that blend are the ingredients:

  • arginine alpha-ketoglutarate,
  • creatine monohydrate,
  • beta alanine,
  • caffeine,
  • 1,3-dimethylamylamine (geranium [stem]), and
  • schizandrol A,
  • as well as some flavoring and color additives.

So, what does this all mean to a consumer? There have been individual studies conducted on each of the ingredients in Jack3d. Some are more effective than others for potentially enhancing athletic performance and building muscle mass. For example, creatine may increase muscle mass and enhance exercise performance during short, high-intensity repeated exercise bouts. For more information about creatine, see HPRC’s research brief. We know that 1,3-dimethylamylamine (DMAA), a chemical from the geranium plant and also synthetically made, is used in supplements promoted for weight loss, bodybuilding, and enhanced athletic performance. According to the Natural Medicines Comprehensive Database, it’s thought to have stimulant effects. Its chemical structure is similar to that of amphetamine, and it is on the World Anti-Doping Agency’s banned substance list. No scientific literature exists on the effectiveness of DMAA for weight loss, bodybuilding, or enhanced athletic performance. Caution is advised on the use of DMAA with caffeine, since both have stimulant effects and could increase the chance of increased heart rate and blood pressure.

The amount of caffeine per scoop of Jack3d has not been released, although it has been estimated that there is less than 150 mg of caffeine/scoop. Caffeine is included on the FDA’s list as a substance “generally recognized as safe.” However, the FDA has established a maximum concentration for caffeine in cola beverages: 32.4 mg per 6 oz or 71 mg per 12 oz. Other than colas, the caffeine content of food and beverages is not regulated. The label of Jack3d states: “Do not use in combination with caffeine or any stimulants from other sources whatsoever, including but not limited to, coffee, tea, soda and other dietary supplements or medications.” Caffeine seems to increase physical endurance, but it does not seem to affect activities that require high exertion over a short period of time, such as lifting.

The main issue with Jack3d is the same one that exists with many bodybuilding products on the market. There is no way to judge the interaction between the ingredients, especially when the consumer is unable to determine how much of each ingredient is in the product. This product contains multiple ingredients and, potentially, additional and potent ingredients not listed. It also could be contaminated, as has been seen with many other supplements. The FDA has put together information on tainted products promoted for bodybuilding.

It is important to mention that Jack3d comes with serious warnings on its label. As with any supplement, be educated, be advised, and consider all the unknowns before you decide whether the possible benefits are worth risking your health.

Herbs at a glance

HPRC Fitness Arena:
Visit the website of the National Center for Complementary and Alternative Medicine for information on many of the herbs used as and in dietary supplements.

The National Center for Complementary and Alternative Medicine (NCCAM) has produced a series of fact sheets on specific herbs and botanicals. Find information on common names, uses, potential side effects, and other information by choosing any of the 45 herbs or botanical fact sheets.

New cooking temperature for pork

HPRC Fitness Arena:
The USDA recommendations for cooking various types of meet offer important and useful guidelines, including some changes from previous directions.

The United States Department of Agriculture’s (USDA) new cooking guidelines for meats include a reduced “safe” cooking temperature for whole cuts of pork to 145ºF (down from 160ºF). They recommend using a food thermometer and allowing a three-minute rest time before serving. For whole cuts of beef, veal, and lamb, the safe temperature is the same—145ºF—but the new guidelines add a three-minute rest time after these meats, too, are removed from a heat source.  For additional information, including the recommendations for cooking ground meats and poultry, read the new cooking guidelines.

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FDA Press Release: Don’t use products marketed as antimicrobial dietary supplements

HPRC Fitness Arena:
The FDA is warning consumers not to buy or use products claiming to antimicrobial and marketed as dietary supplements.

 

The Food and Drug Administration (FDA) is warning consumers to stop using dietary supplement products that claim to be antimicrobial (antibiotic, antifungal, or antiviral) drugs. These products are falsely promoted to treat upper respiratory infections, sinusitis, pneumonia, bronchitis, and colds, and they look like antimicrobial products sold in Mexico.  More information, including product names, is provided in the FDA Press Release.

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FDA Press Release: FDA Warns about Counterfeit ExtenZe Dietary Supplements

HPRC Fitness Arena:
The FDA is warning consumers about a counterfeit product marketed as the dietary supplement product “ExtenZe”

The Food and Drug Administration (FDA) has issued a press release to consumers warning them about a counterfeit product being represented as the dietary supplement "ExtenZe.” The counterfeit product has hidden ingredients, including tadalafil or a combination of tadalafil and sildenafil, which are active ingredients of FDA-approved drugs, making these products unapproved drugs. Taking these products with prescription medications containing nitrates could lower blood pressure to dangerous levels. More information, including the lot numbers on the counterfeit packages, is provided in the FDA Press Release.

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Dietary supplements: Questions and answers

HPRC Fitness Arena:
The Food and Drug Administration (FDA) answers consumers' questions about dietary supplements and the regulations of dietary supplements.

The U.S. Food and Drug Administration (FDA) has information for consumers regarding dietary supplements: Questions and answers, regulations, and safety alerts. Click here for their website.

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Save your knees with a few simple tips

HPRC Fitness Arena:
Prevent knee injury with these tips.

Try these tips from the National Institute of Arthritis and Musculoskeletal and Skin Disease to prevent knee injury while you exercise:

  • Avoid bending your knees past 90 degree when doing half knee bends or squats.
  • Avoid twisting your knees by keeping your feet as flat as possible during stretching.
  • When jumping, land with your knees bent.

Source: Handout on Health. Sports Injuries. National Institute of Arthritis and Musculoskeletal and Skin Disease.

Exercise smart to prevent injuries

HPRC Fitness Arena:
Some tips to keep you from hurting yourself while exercising

Since injuries can occur in physically active individuals, here are a few tips to help you stay injury free:

  • Warm-up and cool-down after exercise;
  • Use proper form;
  • Spread activity throughout the week, not just the weekend;
  • Wear appropriate safety gear;
  • Increase intensity and time gradually, and
  • Cross train to prevent overuse injuries.

Click here for more information: Handout on Health. Sports Injuries. National Institute of Arthritis and Musculoskeletal and Skin Disease.

Preventing sports related injuries

HPRC Fitness Arena:
The October 20 edition of the Vancouver Sun has a brief article on preventing sports injuries.

Woman with knee painPhoto:Shutterstock.com

The October 20 edition of the Vancouver Sun has a brief article on preventing sports injuries.

Click on link below to access the article.

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The hidden danger of extreme workouts

HPRC Fitness Arena:
Are high-intensity fitness programs safe?

The Off Duty section of the Air Force Times recently published an article that looks at the popularity high-intensity fitness programs and concerns about their safety.

Read the full article here.

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