The Encore Fitness Blog Resources and information from top Las Vegas personal trainers, fitness and dietary experts. Carol Strom.

March 24, 2012

Army Steps Up Efforts to Get New Troops Fit

Shape Up, Soldier!

Soldiers can still find pancakes on the chow line at the U.S. Army’s Fort Leonard Wood training facility in Missouri. But now they’re made with whole-grain batter — adding more fiber and protein.

Courtesy from NPR Health

The new focus on nutrition is part of a ‘Fueling the Soldier’ initiative that aims to teach soldiers to make healthier choices during military training and in combat.

 

“The Army must treat our soldiers as tactical athletes to improve not only physical training but also trying to get them to adapt the right nutritional aspects to help prepare them for the battlefield and for their life,” Lt. Gen. Mark  Hertling said in a statement.

Hertling is overseeing an overhaul of physical readiness training. In fact, the Army is tossing out the old training manuals, and taking a new approach to basic training.

Gone are the long endurance runs, which officials say can lead to injuries in new recruits who aren’t accustomed to the mileage.

Instead, soldiers will be coached by trainers to do a whole range of exercises that build core strength, flexibility and endurance. Training will be tailored to a soldier’s level of fitness.

A new cafeteria Fort Leonard Wood was also unveiled today. As soldiers walk down the cafeteria line, they see foods marked with red, yellow or green labels.

Green marks high-performance foods, and posters nudge the soldiers to “Go For Green” frequently.

In addition, the cooks have turned off fryers and started baking more entrees. They’re also adding lots of ‘nutrient-dense’ menu options made from fresh food.

To help reinforce these messages, drill sergeants will give one-hour courses in “performance nutrition.” Maybe Shots can invite them over for dinner with our kids?

Why the change in approach? Well, army recruits mirror the general population, which is trending toward the ‘heavier’ side—to put it politely.

More than 9 million Americans of prime recruiting age are too heavy to join up, according to Mission: Readiness, a group of retired senior military officials pushing for better fitness for young people.

Enlisted men and women are no exception. A 2008 Department of Defense survey found that 38 percent of people enrolled in the military health system were overweight or obese.

The new training plan incorporates physical therapists and sports trainers at the unit level to promote proper techniques and injury prevention

If you’d like to see how the Army is putting its soldier-as-athlete model into action, you can download a free iPhone app called “Army Physical Readiness Training.” It was developed by programmers at the U.S. Army Center of Excellence at Fort Gordon, Ga.

The Army plans to make the changes at its other training installations in Fort Sill, Okla.; Fort Benning, Ga.; Fort Jackson, S.C.; and Fort Knox, Ky. in the coming months

Original Article from NPR Health

March 23, 2012

Low-Fat Beats Low-Carb For Heart Health

image courtesy from bannerhealth.com

For people at risk for hypertension, reducing fat intake may be key to protecting the heart. According to a study published in the American Heart Association’s journal Hypertension, a low-fat diet is more effective than a low-carbohydrate diet in reducing the risk of developing hypertension, a precursor to cardiovascular problems such as atherosclerosis.

When the two types of diets were compared in apparently healthy participants, the low-fat diet was the winner at improving blood pressure markers, such as blood flow in the arteries. This led the researchers to conclude that low-fat diets “may confer greater cardiovascular protection” than low-carb diets.


source: IDEA Fitness

March 19, 2012

6 Fitness Tips to Follow While Traveling

If on the whole you make the effort to eat healthy and have an effective exercise regime, you are likely to be concerned that any travel plans will derail this process. So here are some tips that will help you continue with your fitness programs even when you travel.

1. Do some homework before you leave. Check if the hotel that you plan to stay in has gym facilities or a pool and so on (depending upon your preferred workout activity).

2. Remember to pack workout clothes and shoes. This will remind you to work out and also make it convenient to hit the gym or simply head out for a walk wherever you are staying.

Workout shoes can be bulky so rather than carrying them in your baggage, you can simply wear them when you travel and instead pack the other less bulky shoes into your bag.

3. Carry a jump rope or a couple of dumbbells or kettle bells with you. A session with the jump rope can be a really strenuous workout in a short time, and doing a few weights with dumbbells or even lifting some bottles of bottled water can be a good workout.

4. Do other exercises that don’t need equipment – pushups, leg raises, squats, lunges and stair climbing are all easy to do wherever you are.

5. When eating out, order items that are steamed, grilled or poached. Avoid the items that are fried or calorie rich – if it says ‘crispy’ or ‘golden’, it’s probably been deep-fried, if it says ‘rich gravy or dressing’ that means high in calories too.

Also remember if it is a salad you’re ordering, ask for vinaigrette dressing rather than a cream or mayo-based one. Order small portions and opt for fruit instead of a confection at the end of the meal


Courtesy from FitnessHealthZone

June 2, 2011

The myth of ripped muscles and calorie burns

Weight training can build muscle, but that doesn't mean you start burning calories like a Hummer burns gasoline. (Mark Boster, Los Angeles Times / May 16, 2011)

Sorry to say, but gaining muscle doesn’t make your metabolism skyrocket. Put down that Haagen-Dazs.

Whenever I hear about some amazing way to boost resting metabolism, my male-bovine-droppings detector goes berserk. Take the perennially popular one stating that 1 pound of muscle burns an extra 50 calories a day while at rest — so if you gain 10 pounds of muscle, your resting metabolic rate (RMR) soars by an extra 500 calories each day.

Awesome!

And also drivel. I’m more likely to believe bears use Porta-Potties and the pope is a Wiccan.

Though its origins are uncertain, any number of fitness magazines have made the “50 calories per pound of muscle” statement. Popular weight-loss gurus have jumped on the muscle-building-as-panacea-for-fat-loss bandwagon as well.

Dr. Mehmet Oz said in a 2007 presentation to the National Cosmetology Assn., “Muscle burns about 50 times more calories than fat does.” Bill Phillips wrote in his bestselling “Body for Life” that, “through resistance training, you can also significantly increase your metabolic rate … weight training is even superior to aerobic exercise for people who want to lose weight.” And Jorge Cruise wrote in “8 Minutes in the Morning” that his exercise regimen “will help you firm up five pounds of lean muscle within the first few weeks, allowing your body to burn an extra 250 calories per day.”

Gain 5 pounds of muscle in the first few weeks? If only.

Let’s use me as an example. I’ve added about 20 pounds of muscle through several years of hard weightlifting. If this myth holds true, I’ve gained 1,000 calories of additional resting metabolic rate each day. Well, I keep pretty close tabs on my energy balance, and I can guarantee this isn’t happening. Too bad, because those extra 1,000 calories a day could translate to a gluttonous feast of salt-and-vinegar potato chips and cookie dough ice cream.

Beyond making me the go-to guy for opening pickle jars, what other contributions are made by that extra muscle? To get the answer, I spoke with Claude Bouchard of the Pennington Biomedical Research Center in Baton Rouge, La., who has authored several books and hundreds of scientific papers on the subject of obesity and metabolism. Bouchard told me that muscle, it turns out, makes a fairly small contribution to RMR.

“Brain function makes up close to 20% of RMR,” he said. “Next is the heart, which is beating all the time and accounts for another 15-20%. The liver, which also functions at rest, contributes another 15-20%. Then you have the kidneys and lungs and other tissues, so what remains is muscle, contributing only 20-25% of total resting metabolism.”

So, if you slave at weightlifting and increase your muscle mass by an ambitious 20%, this translates into only a 4% to 5% increase in RMR. Since a 200-pound man has an RMR of roughly 2,000 calories, a 20% increase in muscle mass equals only an 80- to 100-calorie increase.

For fun, let’s run the numbers in even more detail, adding the role played by body fat. Bouchard sent me a follow-up email explaining that — based on the biochemical and metabolic literature — a pound of muscle burns six calories a day at rest and a pound of fat burns about two calories a day, contrary to what the myth states. So, muscle is three times more metabolically active at rest than fat, not 50 times.

Again, let’s use me as a guinea pig and do the math. The 20 pounds of muscle I’ve gained through years of hard work equate to an added 120 calories to my RMR. Not insignificant, but substantially less than 1,000. However, I also engaged in a lot of aerobic activity and dietary restriction to lose 50 pounds of fat, which means I also lost 100 calories per day of RMR. So, post-physical transformation, my net caloric burn is only 20 calories higher per day, earning me one-third of an Oreo cookie. Bummer.

Don’t think I’m down on weights; I lift four hours a week because it’s awesome. It makes me stronger, increases my bone density and improves the strength of my connective tissues. It hardens me against injury from other activities. And my wife says that it makes me pretty from the neck down.

Bill Phillips told me through an assistant that weightlifting is better for fat loss because “each new pound of muscle tissue increases chronic total energy expenditure/metabolism” and that “aerobic exercise alone does not offer this benefit.” However, a sizable body of research shows that intense aerobic activity like running burns twice as many calories per hour as hard weightlifting, and the metabolic boost from added muscle is not nearly enough to compensate for this difference.

(I should note that Phillips and I are on the same general side in that we both recommend a combination of aerobic training and weightlifting.)

But wait! When you factor in “after burn,” couldn’t weightlifting still be some miracle calorie-consumer? Sorry, Conan, but after-burn — technically called excess post-exercise oxygen consumption, or EPOC — does exist, but only to a small degree. As I’ve covered in an earlier column, the EPOC of interval training is insignificant. And the same holds true for weightlifting.

A quick scan of the research:

• In 1995, researchers at the University of Limburg in the Netherlands published a study in Medicine & Science in Sport & Exercise on 21 male subjects and determined that weight-training “has no effect” on RMR.

• In 1994, researchers at the Royal Veterinary and Agricultural University in Denmark compared 10 bodybuilders with 10 lean (you are so puny!) subjects. Published in the American Journal of Clinical Nutrition, the report found that intense weight-lifting did not result in any measurable EPOC.

• In 1992, researchers from the University of Texas at Austin compared intense weightlifting with intense aerobic exercise on 47 males and reported in the American Journal of Clinical Nutrition that “RMR did not significantly change after either training regimen.”

Certainly the act of weightlifting burns calories, but intensity makes a big difference. In 1988, researchers at the University of Alabama in Birmingham published a study in the Journal of Applied Sport Science Research that used 17 subjects to compare the caloric burn of light versus heavier weightlifting.

When accounting for the same total volume of weight lifted (lifting 100 pounds three times is the same “volume” as lifting 300 pounds once), they found that when people lifted at 80% intensity, they burned three times as much energy as lifting at 20% intensity.

All of this, in any case, ignores the most important part of weight loss: what you eat. “The bottom line is that weight loss is 90% about diet,” obesity researcher Dr. Sue Pedersen, a specialist in endocrinology and metabolism in Calgary, told me. “The studies show that exercise alone is not going to result in weight loss.”

In other words, hours of running and weightlifting won’t burn your belly fat if you fuel that exercise with Haagen-Dazs.

May 31, 2011

Are Americans Too Big To Drive Small?

Analysts say Americans' waistlines may keep us from choosing small cars. (Adam Morath, AOL Autos)

Karen Steelman, a stay-at-home mom from Athens, Ga., has tried to like small cars. She read plenty of reviews, kicked their tires, and has even taken a few test drives.

But none of them make her feel safe. And none of them make her feel comfortable.

Steelman has a body mass index of about 37 – seven points above the obesity mark. She’s among a growing number of Americans who feel they are too big to comfortably drive a small car.

“I want to be environmentally friendly, but unless I am in an SUV these days … I find no pleasure or comfort in driving,” she says.

Automakers have long tried to figure out how to get Americans to buy smaller cars. But with obesity rates climbing, at least one analyst says there’s little point in trying.

Growing waistlines simply prevent a lot of U.S. drivers from feeling comfortable or secure in smaller cars. So, unless the entire country goes on a diet, says Dan Cheng, vice president and partner at business consulting firm AT Kearney, we may be destined to keep driving big cars no matter how much a gallon of gas costs in the future.

Cheng says the number of light trucks – a segment of the car market that includes SUVs, minivans, and pickup trucks – has increased steadily since the 1970s. And so has the percentage of adults in the U.S. who are classified as obese.

The number of obese people in the U.S. is expected to increase from 40% this year to about 43% in 2018, Cheng says. Cheng predicts that will keep almost half the population from even considering a small car except for purely economic reasons as small cars tend also to be cheaper than big cars or SUVs.

Calculating the “real” obesity rate in the U.S. is a little tricky. Cheng’s 40% rate is at the high end of estimates. The Center for Disease Control says the overall self-reported obesity rate in the U.S. is 26.7%, with nine states reporting obesity rates over 30%. In any case, the rate is nowhere close to the 15% rate the CDC considers to be a healthy obesity rate.

Small cars have made up 22.6% of the U.S. car market so far this year. Back in 2008, small car sales made up about 28% of the market, back when gas spiked over $4 a gallon.

Smaller cars and alternative fuels are critical to President Obama’s plan to reduce the nation’s dependence on foreign oil. The President last week promised to cut oil imports by a third by 2025. To do that, the country will have to slash its petroleum use.

First Lady Michelle Obama has made fighting childhood obesity one of her public service missions, but so far no one in the Obama Administration has made the connection.

Virtually All Cars and SUVs are Becoming Much More Fuel Efficient

Today’s SUVs and mid-sized sedans and crossovers are becoming more fuel efficient than their predecessors of a decade ago. But it’s smaller cars, which tend to be the most fuel efficient of all because they are smaller and lighter, that are critical to automakers meeting toughening fuel economy standards imposed by Congress.

Automakers have to meet a Congressionally mandated fleet average of 35 mpg by 2016.

Some of the most fuel-efficient small vehicles on the road get over 40 mpg, like the Ford Fiesta. The most fuel-efficient pickup truck is the Ford Ranger, and it gets 24 mpg, according to the government site fueleconomy.gov. A new Kia Rio, debuting this fall, will also be above 40 mpg when certified by the EPA. But neither of these vehicles was especially designed to accommodate widening waistlines.

Ironically, there are a few small cars that are designed to be extra roomy inside making them noteworthy for their interior spaciousness, if not for exceptional fuel economy. The Honda FitNissan Cube and Versa, and Scion xBall have ample space up front, with good headroom and comfortable space for the driver. The Volkswagen Beetlehas long been a favorite among large people because of its easy egress and excess headroom.

Of those cars, only the Fit and Versa get above 30 mpg, and only just barely. In order for automakers to reach a 35 mpg fleet average by 2016, automakers need to boost those ratings closer to 40 mpg.

The most fuel efficient compact SUVs — the Hybrid versions Ford EscapeMercury Mariner and Mazda Tribute — get 32 mpg. Their non-hybrid versions get 25 mpg.

Resources For the Future, a Washington D.C. think-tank that explores environmental and energy issues, says they’ve found a link between obesity and large vehicle sales, too. They say policies that reduce obesity can also reduce fuel consumption, because smaller people drive smaller cars.

Automakers like Ford are trying to design interiors that keep the bigger population comfortable. Elizabeth Baron, Ford’s technical specialist for virtual reality and advanced visualization, says the automaker has recently updated its database of model human sizes to incorporate the growing number of obese adults.

Automakers Looking at Console and Roofline To Make More Room

To keep drivers comfortable, her team focuses on a few key areas: The center console, seat controls on the left, and head room. If the center console is too large, it can press into peoples’ bodies. And the storage space in the console can be awkward for larger people to use. Seat controls can also be difficult to reach. Also, because obese drivers sit higher in their seats, they often feel squeezed if the roof line is too low. Automakers also need to be aware of where they place sunroof controls, because those can get in the way.

Robert Dean Cole, from Kenosha, Wis., is 6 foot 7 inches and 240 pounds, and his six-year-old son is nearly 5 feet tall.

“Obviously, little cars are not going to be in our future,” he says.

While he’d like to own a car with better gas mileage, he says he can barely fit behind the steering wheel in most of them.

“And even if I could actually fit under the steering wheel of the car my next worry would be surviving a car accident,” he says. “Good chance I won’t be surviving due to my size.”

So he recently purchased a Ford F-150 – one of the biggest vehicles in the U.S. It is also the most popular.

Jake Fisher, senior engineer at Consumer Reports, thinks it’s more that fear of being crushed that keeps most people away from small cars. Fisher has recently been test-driving a Fiat 500 for Consumer Reports, and he can fit his entire family in the car comfortably. They’ve enjoyed using it for around town.

But out on the highway, when they encounter some trucks, being in the small can feel a bit sketchy, he says. “When you drive up next to a Suburban, it’s a little intimidating,” Fisher says.

Consumer Reports, in fact, last year came out with a list of “Best Cars for Larger Drivers,” to spotlight their recommendation to auto companies to redesign seats and seat-belts for reasons of both comfort and safety. The consumer advocacy organization, which tests cars, recommended several cars for their roomy driver position and easy access. AOL Autos Editors augmented that list with a few selections and can be seen in the gallery below.

Still, because SUVs have been so popular for so long, many consumers won’t consider small cars out of fear they will come up on the short end of a one-on-one collision with one. Also, auto designers say many drivers, especially women, have come to like the elevated, commanding seating positions that come with SUVs. This attitude is especially prevalent in rural markets where pickups and SUVs make up a larger percentage of overall vehicles than in the cities and suburbs.

But the idea that bigger is safer is often not true. Many small cars get as good or better crash ratings than larger vehicles because automakers have engineered many safety features into small cars precisely to make up for their lack of mass in a collision with a larger vehicle. The 2011 Ford Fiesta has a 4-star crash rating from the Federal government, as listed at www.safecar.gov, the same as the Ford F-150 pickup truck, and better than some larger corossovers and SUVs like the Toyota RAV4 (which gets 3-Star). The Scion TC, built by Toyota and a small car, earned a 5-star rating.

It’s important to research each car under consideration for purchase because size of vehicle doesn’t always tell the whole safety story. But the vehicle does need to fit in the first place when a customer sits behind the wheel.

Bottom Line
A vehicle needs to fit its occupant, and clever design and engineering can overcome size limitations. As any large person who has test driven cars can attest, the Honda Fit and VW Beetle are roomier for the driver than some larger vehicles like Ford Taurus or Nissan Maxima.

Automakers under pressure to achieve better fuel economy across their lineup may need to give greater consideration to making small cars more comfortable for average Americans. Those that place sleek design over practical will lose customers and consideration.

February 26, 2011

Many stick with fast food after heart attack: study

It would seem logical for patients who have had a heart attack to cut back on fast food.

Some devoted fast food eaters do. But six months later, more than half can still be found at their favorite fast food places at least once a week, according to a study in the American Journal of Cardiology.

Of nearly 2,500 heart attack patients studied by John Spertus, at the University of Missouri at Kansas City, 884 — or 36 percent — reported in a survey while still hospitalized that they had eaten fast food frequently in the month before their heart attack. “Frequently” was defined as once a week or more.

When Spertus and his colleagues checked back six months later, 503 were still eating fast food every week.

“Fast food consumption by patients with AMI (acute myocardial infarction) decreased 6 months after the index hospitalization, but certain populations — including younger patients, men, those currently working, and less educated patients — were more likely to consume fast food, at least weekly, during follow-up,” he wrote.

“Novel interventions that go beyond traditional dietary counseling may be needed to address continued fast food consumption after AMI in these patients.”

But the study showed that older patients and those who had bypass surgery were more likely to be avoiding fast food six months later.

The survey did not ask what menu items people ordered, and some in the restaurant business have pointed out that fast food isn’t always limited just to burgers and fries.

But Spertus and his colleagues pointed out that the people in their study who kept eating fast food tended to have health profiles “consistent with selection of less healthy options.”

Nine out of 10 patients in the study received dietary counseling before they left the hospital, but this didn’t seem to affect that odds that frequent fast food eaters would improve their diets, and Spertus said this showed they needed more education after leaving the hospital.

“The problem is that patients are absorbing so much information at the time of their heart attack, that I just don’t think they can capture and retain all the information they’re getting,” he told Reuters Health.

Fast food restaurants in the United States will soon post calorie, fat, sodium and other nutritional information on their menus, as required by the health care law passed last year.

Already, cities such as New York and Philadelphia mandate calorie counts on menus.


Source: http://bit.ly/eAnRdI
Image Courtesy from: Marketingpower.com

February 5, 2011

Global Weight Loss Market Continues Expansion

image courtesy from 'The Mighty Fit Grasshopper'

As obesity increases globally, so too does money spent on weight management systems. This trend is expected to continue as analysts theorize that the global weight loss market will reach a staggering $586.3 billion by 2014. Global Weight Loss and Diet Management Market (2009–2014), a report published by MarketsandMarkets (www.marketsandmarkets.com), also states that the North American market will account for 43% of all revenues. “This market is driven by the growing demand for weight management services, the increasing incidence of child obesity, the increasing popularity of organic and healthy food, the emergence of Asians as big spenders on health and fitness products, and the rising health and fitness consciousness of women,” states information from the report. Of the market, the devices and services sectors are estimated to account for $180.8 billion and $181.6 billion respectively.

IHRSA has also released its own report citing industry growth. The 2009 IHRSA Global Report: The State of the Health Club Industry projects that health clubs will reach 120 million members worldwide by 2010. Such numbers are promising, considering current economical difficulties. “While these are not ordinary times, the fact remains that there is simply no better industry in which to work or invest, than ours,” stated Jay Ablondi, IHRSA executive vice president of global products, in a press release.


source: IDEA Fitness

January 21, 2011

Salad Sabotage!

Extras to avoid at the salad bar.

Think that you are being virtuous when grazing at the salad bar instead of grabbing a burger for lunch? Well, think again: Many of the items lurking under that plastic protective covering are actually quite high in calories and/or fat. Here are some of the culprits to watch out for at your favorite salad counter:

Dressings. Avoid French, Italian and Russian dressing, which contain about 65 calories per tablespoon, and don’t even think about ranch dressing, which packs in a whopping 90 calories per tablespoon.

Coleslaw. Hard to believe a 6-ounce serving can contain 150 calories!

Cottage Cheese (Full Fat). Those 120 calories per half cup can put the cottage cheese on your thighs in a hurry.

Egg Salad. At 345 calories per 4-ounce serving, you should at least get some bacon on the side, no?

Bacon Bits. Speaking of bacon, a mere tablespoon of these little buggers will set you back 30 calories.

Peas. One half cup contains 70 calories, so use sparingly.

Croutons. Easy on those tablespoons, each of which contain 20 calories.

Sunflower Seeds. These crunchy toppings weigh in at 175 calories per ounce.

Source: CalorieKing.com

January 18, 2011

The Buzz About Energy Drinks

How Much Caffeine

Last year, teenagers and young adults spent almost $2.3 billion on heavily caffeinated drinks with names like Monster, Red Bull, Amp and Full Throttle.

Evan Cathcart, 19, says a can of Red Bull gives him a quick boost when he’s skateboarding.

“I can skateboard longer and it tastes good,” Cathcart says. He’s always assumed energy drinks are more potent than Mountain Dew or Coke, but he says it’s unclear exactly how much caffeine they contain because it’s not labeled on the can.

In order to determine how much caffeine is contained in various brands of energy drinks, toxicology professor Bruce Goldberger of the University of Florida tested 10 drinks. He found a significant range of caffeination.

He found one of the energy drinks, Hair of the Dog, contained no caffeine. Another drink, a 16-ounce serving of SoBe No Fear, contained 141 milligrams of caffeine, which is the equivalent of almost five cans of Coke or 1 ½ cups of a typical brewed coffee. Goldberger also tested an 8-ounce sugar-free can of Red Bull, which had twice the caffeine of a can of Coke or Pepsi.

Caffeine researchers who’ve studied the effects of the stimulant on the body say there’s nothing alarming about the amount of caffeine in a single can of these energy drinks.

But experts say teens often don’t realize how much caffeine they’re drinking. And many teenagers also don’t know how easy it is to become dependent on the stimulant.

“If they use it for three or five days in a row, and then suddenly quit, then they’re going to be thrown into withdrawal,” says Roland Griffiths, professor of behavioral biology at Johns Hopkins University.

Withdrawal symptoms can include headaches, mood swings and trouble concentrating. Some people are more sensitive to stimulants than others, so some teens may get a bad case of the jitters from very little caffeine.

“I think it’s important that people recognize that caffeine really is a drug,” Griffiths says, “and that they accord it respect as a drug.”

Teens and young adults seem to be drinking more of these caffeinated beverages than ever. Two years ago, when Bruce Goldberger first began to study energy drinks, he found 10 brands.

“Now, the market has blossomed and there’s literally hundreds of energy drinks available,” Goldberger says.

As the market expands, some brands are pushing caffeine levels to new highs. One drink, called Cocaine and made by Redux Beverages, contains about three times as much caffeine as Red Bull. To publicize its drink, the company sponsors contests inviting contestants to submit wacky videos they’ve put on Web sites like YouTube or MySpace.

“They send us the videos,” says Redux’s Hannah Kirby, “and then we send them out a T-shirt and samples of the beverage. We’ve done a lot of stealth marketing.”

Energy-drink makers also market their products to teens and young adults by sponsoring sporting events or athletes who compete in extreme skiing, skateboarding or BMX biking.

“A lot of these energy drinks, ones like Monster, they catch on by word of mouth,” says energy-drink blogger Dan Mayer.


original article from NPR’s health blog

January 15, 2011

Are You Getting Enough Iron?

Image Courtesy from LIVESTRONG

Iron deficiency is a potentially serious condition that affects more than 1 billion people worldwide. At the opposite end of the spectrum, high iron levels creates health problems for millions more. While most of us have normal iron levels, it’s important to understand the consequences of getting too much or too little iron, says nutrition expert Christie Knudsen, MS.

The Most Common Iron Deficiency

Why is iron so critical? Iron deficiency, or insufficient iron in the blood, is the most common nutrition deficiency; research has shown that in the United States alone, up to 10 percent of women of childbearing age and adolescent girls–and 9 percent of toddlers–are iron deficient. Severe deficiency can lead to fatigue and loss of energy, substantial reduction in work capacity, impaired behavioral and intellectual performance, impaired capacity to maintain body temperature in a cold environment, decreased resistance to infection, increased risk of lead poisoning and slow development in young children, and ultimately, death.

Iron deficiency can be caused by an underlying disease, such as stomach ulcers or an intestinal form of cancer, or by an imbalance between iron loss and dietary iron intake. The most common cause of iron loss is menstruation. Another risk factor for iron deficiency is pregnancy, when insufficient iron can cause premature delivery, low birth weight and even fetal death. Athletes are also at risk for iron deficiency, since strenuous or prolonged exercise can lead to iron loss. Vegetarians are vulnerable as well, because dairy products generally do not provide adequate iron, and the type of iron found in plant foods (nonheme iron) is poorly absorbed by the body.

Increasing Iron Intake

While reducing iron levels can be difficult or impractical, you probably can control how much iron you consume. Your goal should be to get the Recommended Dietary Allowance (RDA) of 10 milligrams (mg) if you’re a male over the age of 19, or 15 mg if you’re a female between the ages of 11 and 50 (10 mg if you’re over age 50). Pregnant women should get 30 mg of iron, and lactating women need 15 mg.

The most practical way to increase your iron intake is to eat iron-rich foods. Here are some examples: 4 ounces lean ground beef (2.0 mg iron); 4 ounces sirloin steak (2.6 mg); half chicken breast (1.1 mg); 1 chicken leg (1.7 mg); 1 can tuna in water (5.3 mg). Almonds, pumpkin seeds, raisins, lentils, pinto beans and tofu are also rich in iron, but these foods contain nonheme iron, which is not as easily absorbed as the heme iron in beef, chicken and fish. Eating vitamin C-rich foods, such as tomatoes or oranges, at the same meal will increase absorption of nonheme iron.

Preventing and treating even mild iron deficiency produces significant benefits. Raising blood iron levels to normal in children and adults can dramatically improve their ability to think and concentrate.

Too Much Iron

High iron levels in the blood can increase the risk of heart disease and cause extra wear and tear on tissues and organs, especially if the diet does not provide enough antioxidants, such as vitamins C and E. Hereditary hemochromatosis (HH), or iron overload, is the most common genetic disease in the United States. One in 10 people carry the genetic mutation, and one in 220 have the disease. Individuals with HH absorb 20 percent or more of the iron they eat in food, whereas people without the genetic mutation absorb between 3 and 13 percent.

The body has no way to get rid of iron except through blood loss. Any extra iron accumulates in tissues and organs, particularly the liver and pancreas, and can lead to cirrhosis, diabetes, arthritis or heart failure. Women are just as likely as men to have HH. However, since women lose iron through menstruation and pregnancy, they usually do not develop HH complications until they’re in their 60s or even older, whereas men typically begin showing signs of the disease in their 40s.

The only way to know if you have normal iron levels is to have a physician take a blood test. Then you’ll know if you need to correct an iron problem to regain your concentration and energy. Since there are serious risks associated with too much iron, taking a supplement without the advice and supervision of a physician is not appropriate.


original article from IDEA Fitness

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