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: Nutrition
There is a growing trend in the U.S. of consumers using a variety of dietary supplements in hopes of getting healthier, warding off disease and easing symptoms of various conditions.
In a September 14, 2010 article, The Wall Street Journal reports that the federal government is stepping up research into the safety and effectiveness of a wide range of products to help consumers make more informed choices about supplements. The article in full-text can be accessed here.
A recent study found that while eating chocolate frequently and in large amounts did not appear to have a protective effect against heart failure, moderate chocolate consumption was linked to lower risks of heart failure. Women who ate one to two small portions of high-quality dark chocolate per week had a 32 percent lower risk of developing heart failure. Those who had one to three servings per month had a 26 percent lower risk, while women who ate at least one serving daily or more showed no improvements.
The Simple 7™ is an easy way to figure out how to achieve good health. This online resource, provided by the American Heart Association, lists seven steps that are crucial to our health. We list their steps for you below:
- Don’t smoke.
- Maintain a healthy weight.
- Engage in physical activity.
- Eat a healthy diet.
- Manage your blood pressure.
- Take charge of your cholesterol.
- Keep your blood glucose at healthy levels.
With Life’s Simple 7™, you'll find out where you stand, how you're doing, and also get you your own personal heart score and health plan.
Instead of asking your friends to bring their usual comfort foods to dinner at your house, suggest that everyone bring a healthy option instead. Place caloric restrictions or assign different people to fruit, vegetable, or meat dishes. This will help get everyone involved in healthier eating habits.
Probiotics are “good bacteria” that live in our intestines. They reduce the effects of harmful bacteria and have many health benefits. They help maintain natural bacteria balance in your intestines which promotes a healthy digestive system, and may prevent colon cancer. Foods that contain probiotics include yogurt, keifer, cultured milk products, sauerkraut, tempeh, and miso. Consider adding some of these foods to your diet.
Despite widespread access to internet-based healthcare information, there’s almost a complete lack of evidence showing any effects all this information may have on health outcomes. According to a study published in Health Expectations, this indicates that there’s a disparity between the health information we find online and our ability to use it properly.
So, with as much information as there is on the internet, how can we, as consumers, find reputable sources for our health questions? The internet can be a great resource when you want to learn about a specific disease or health condition. You can also find tips on staying healthy. But among the millions of websites that offer health-related information, many present myths and half-truths as if they are facts.
To avoid unreliable health information when you’re surfing the internet, use these tips to find reliable information:
- Keep in mind that anyone can publish anything they want on the internet, regardless of the facts. Ultimately, it’s up to the consumer to determine which information source is credible.
- In order to determine a trusted, verified source for credible and objective information, stick with well-respected health websites. A good starting point is healthfinder.gov, which provides a “Health A to Z” topic listing (http://www.healthfinder.gov/HealthAtoZ/ ) of over 1,600 health topics from the most trusted sources.
- Newspapers always use more than one source for verifying factual information. The same should hold true for health information. When searching a topic, it’s important to find at least a second reference to confirm your findings. Find a third reference, too, if possible. When several sources report similar information on a topic, it’s more likely to be accurate and up-to-date. In general, if you can't find the information duplicated in more than two or three references, then the information is questionable at best.
- Become skilled at separating facts from opinions. This can sometimes be difficult, as the evidence that exists may be minimal. It's important that you know the difference between fact and opinion, especially when you're researching treatment alternatives.
- Testimonials and personal stories tend to focus on a patient’s subjective point of view. If you find a website that quotes patients about the effectiveness of a treatment or therapy, this information is biased and cannot be trusted as a reliable source. However, there is information to be learned from the experiences of patients by using other sources (for example, through blogs and wikis, and support group message board forums). In those situations, refer back to point 1 (above) as your first line of review.
- Make sure the information you find is the most current available. Often, you will find that research and studies conflict with one another, or that newer information trumps older information.
Finally, information that you find on a website does not replace your doctor's advice. Your doctor is the best person to answer questions about your personal health. If you read something on the internet that doesn't concur with what your doctor has told you, make a point to speak with him or her about it.
Popular energy drinks promise superior athletic performance and weight loss but do the claims hold up? Not always, according to a study conducted by researchers from Nova Southeastern University. According to the study, energy drinks may increase athletic performance and aerobic benefits. The researchers found conflicting evidence regarding the impact of energy drinks on weight loss, although some data suggest that combining energy drink use with exercise may enhance body fat reduction.
A recent study published in the Journal of Nutrition Education and Behavior found that 4th and 5th grade students ate more fruits and vegetables if they helped their family shop for them, and if their parent(s) ate fruits and vegetables the day before. The bottom line: eating fruits and vegetables helps us, and the children around us, be healthier.
Recent surveys of dietary supplement use indicate that about 20 percent of active duty personnel are using some type of protein powder. The percentage of users is likely higher among special operations personnel, and this is of concern given the July 2010 Consumer Reports® Alert on protein drinks. These powder products are typically mixed with milk, water, or another liquid to make a shake and promoted as a sure way to increase muscle mass. The products often come in different flavors, with strawberry and chocolate the mainstays.
The Consumer Reports® Alert indicated that most of the 15 protein drink products analyzed contained miniscule to concerning amounts of selected contaminants – arsenic, cadmium, lead, and/or mercury – each of which is toxic to various organs in the body. Military personnel commonly use several of the products noted in the report. These include EAS Myoplex Original Rich Dark Chocolate Shakes; Muscle Milk chocolate, vanilla crème, and nutritional shake beverages; MuscleTech Nitro-Tech Hardcore Pro-Series Vanilla Milkshake; selected GNC products, and BSN and Optimum Nutrition whey protein products.
It is important to note that if three servings of these products were taken per day, consumers could be ingesting amounts of these contaminants in excess of the maximum limits proposed by the United States Pharmacopeia, the authoritative standard for health products. Importantly, toxic effects have been reported from using these products and are of concern because the Food and Drug Administration does not require such products to be tested to confirm the absence of contaminants and other potentially dangerous products before they are sold.
Take Home Message: A chicken breast, three 8-oz glasses of milk, and three eggs are inexpensive sources of high quality protein, whereas protein powders are expensive sources of uncertain quality, and potentially contaminated, protein. It is both better and cheaper to eat real foods.
According to the 2010 Dietary Guidelines for Americans released by the Dietary Guidelines Advisory Committee, individuals should significantly reduce intake of foods containing added sugars and solid fats since they contribute excess calories and few, if any, nutrients.