Chocolate: Is It a “Health Food”?

jacky

图片:Nancy_0_0_0_0_0_0_0_0_0_0.jpg




Nancy Clark MS RD CSSD - (Read past Nancy Clarks articles at the bottom of this article) “Chocolate! I try to stay away from it!!!” commented my client, a runner who described herself as having a rampant sweet tooth. For her, chocolate fits into the categories of junk food, guilty pleasure and ruiner of good intentions to lose weight. Yet, she also recognized there is potentially a happier side of the story. Ads for (dark) chocolate suggest chocolate is good for us. Chocolate comes from plants and contains the same health-protective compounds that are found in fruits and vegetables.

So what is the whole story on chocolate? Is it little more than an alluring form of refined sugar, saturated fat and empty calories? Or does chocolate (in moderation, of course) have positive qualities that might be beneficial for runners?

Here are some nuggets of information about chocolate. I'll let you decide whether or not the health benefits of eating chocolate are greater than the health costs—and if you personally want to define chocolate as a “health food” within the context of your own sports diet.

The “Bad”
The bad news is chocolate consists of primarily saturated fat and sugar. A Hershey's Chocolate Bar (43 g) contains 210 calories, 24 grams sugar (46% of calories), 13 g total fat (55% of calories) and 8 g saturated fat, equivalent to a tablespoon of butter. Boo hoo. (But here's how you can rationalize including this popular treat in your overall well-balanced sports diet: The fat in chocolate does not raise bad cholesterol levels and the sugar (carb) in chocolate fuels your muscles....)

• Like most people, runners commonly eat chocolate in bursts—a lot in a day, such as on holidays or pre-menstrually—or none. The question arises: Would enjoying some chocolate every day help reduce an runner’s urge to binge-eat the whole bag of, let's say, M&Ms in a moment of weakness? That's a good question and one that needs to be researched. We do know that deprivation and denial of food contributes to overeating. You know the syndrome: “I'm starting my diet Monday morning, so Sunday is my last chance to eat chocolate...” and there goes the whole bag of M&Ms!
I invite my clients to try taking the “power” away from chocolate by enjoying a little bit every day, such as for dessert after lunch. Ideally, daily chocolate could reduce it to being simply a commonplace plant food, just like bran cereal, an apple or carrot sticks. Give it a try?

The “Ugly”
Some runners claim they are “addicted” to chocolate. Perhaps “chocolate addicts” grew up in a household where the parents banned chocolate? Now, as grown-ups, maybe they rebel by eating Reece's Pieces by the bagful? Or are they “super tasters”—and the flavor of chocolate is just irresistible? Perhaps they have a genetic difference that makes chocolate highly attractive? Some day, genetic testing may help us find the answer to that question.

The “Good”
Chocolate is made from cocoa. Cocoa comes from a plant. It is a rich source of health-protective phytochemicals, just like you'd get from fruits, vegetables and whole grains. Two tablespoons natural cocoa power (the kind used in baking) offers the same antioxidant power as 3/4 cup blueberries or 1.5 glasses red wine.

• Of all the types of chocolate, dark chocolate is the richest source of phytonutrients. Unfortunately, dark chocolate has a slightly bitter taste and most runners prefer the sweeter milk chocolate. Maybe we should raise today's children on dark chocolate, so they will they learn to prefer it...?

• One phytochemical in cocoa is nitrate. Nitrate gets converted into nitric oxide, a chemical known to increase blood flow. Nitric oxide lowers blood pressure, a good thing for masters runners who want to stay youthful and invest in their health. (1)

• Another group of phytochemicals are called flavonoids. They are in many plant foods, including tea, apples and onions. Epidemiological surveys of large groups of people indicate those who regularly consume chocolate consume more of these health-protective flavonoids than non-chocolate eaters. This reduces their risk of heart disease. In the Netherlands, elderly men who routinely ate chocolate-containing products reduced their risk of heart disease by 50% and their risk of dying from other causes by 47%. (2)

• Cocoa increases blood flow to the brain. If this means you can process information better and faster—like calculate your split times or help your kids with their math homework—wouldn’t that be a great excuse to enjoy chocolate?!

• Many parents keep chocolate away from their children, thinking chocolate makes them hyper. No research to date supports that claim. The party or special event that surrounds the chocolate likely triggers the hyperactivity. (3)

• Chocolate is yummy! Most runners love chocolate. Chocolate lovers don't want sugar-free or fat-free chocolate. They want the 100% real stuff! That's because consumers buy benefits, not products. Being yummy is a huge benefit!
During the recession in 2009, sales of Hershey's chocolates increased. Is that because worried people bought a moment of yummy, cheer-me-up chocolate? Or, did they simply settle for a bag of less expensive Hershey's Kisses instead of a box of pricey Godiva Chocolates? Regardless, chocolate seems to fit every mood, be it happy, sad, tired or celebratory.

• Flavanol-rich cocoa may help reduce muscle soreness. Studies with
athletes who performed muscle-damaging downhill running and then consumed a cocoa-based carbohydrate and protein beverage experienced less muscle damage and felt less muscle soreness. (4)

•Although the chocolate used in flavoring milk lacks the health-protectors found in dark chocolate, the yummy flavor makes chocolate milk a popular recovery drink. The sweetened chocolate offers carbs to refuel muscles; the milk offers protein to build and repair muscle. Plus, milk boosts intake of calcium and vi*****in D, needed for strong bones.

Conclusion
Despite all this good news about chocolate, it is still just a candy and not a life-sustaining food. Yet, it does provide pleasure—and pleasure is certainly part of a health and wellness program, right?
The trick is to enjoy dark chocolate as part of the 100 to 150 “discretionary” sugar calories that can be part of your daily sports diet. As for me, I'll enjoy my dark chocolate during a long hike, run or bike ride. Tastes better than most engineered sports foods and nicely fuels both my body and my mind!

References

1. Fisher ND, Hollenberg NK. Aging and vascular responses to flavanol-rich cocoa. J Hypertens. 24(8):1575-80, 2006.

2. Buijsse B, Feskens EJ, Kok FJ, Kromhout D. Cocoa intake, blood pressure, and cardiovascular mortality: the Zutphen Elderly Study. Arch Intern Med. 27;166(4):411-7, 2006.

3. Wiles NJ, Northstone K, Emmett P, Lewis G 'Junk food' diet and childhood behavioural problems: results from the ALSPAC cohort. Eur J Clin Nutr. 2009 Apr;63(4):491-8.

4. McBrier NM, Vairo G, Bagshaw D et al., Cocoa-based protein drink decreases CK levels and perceived soreness following exhaustive exercise. J Strength and Conditioning Research 2010, manuscript in press.

Chocolate Lush

This low fat brownie pudding forms its own sauce during baking.
It’s a tasty treat for when you are hankering for a chocolate-fix
and a yummy way to add a little dark chocolate to your sports diet. This recipe is one of many in my Sports Nutrition Guidebook (www.nancyclarkrd.com).

1 cup flour,preferably half white, half whole wheat
3/4 cup sugar
2 tablespoons unsweetened dry cocoa
2 teaspoons baking powder
1 teaspoon salt
1/2 cup milk
2 tablespoons oil, preferably canola
2 teaspoons vanilla
3/4 cup brown sugar
1/4 cup unsweetened dry cocoa
1-3/4 cups hot water

Optional: 1/2 cup chopped nuts.

1. Preheat the oven to 350°.

2. In a medium bowl, stir together the flour, white sugar, 2 tablespoons cocoa, baking powder, and salt; add the milk, oil, and vanilla. Mix until smooth. (Add nuts.)

3. Pour into an 8x8" square pan that is nonstick, lightly oiled, or treated with cooking spray.

4. Combine the brown sugar, 1/4 cup cocoa, and hot water. Gently pour this mixture on top of the batter in the pan.

5. Bake at 350° for 40 minutes, or until lightly browned and bubbly.

Yield: 9 servings
Total calories: 2,100
Calories per serving: 230

Nutrients % Grams
Carbohydrate 46 grams
Protein 3
Fat 4

Protein, Carbs & Endurance Running: Finding the Right Balance - http://www.runohio.com/read_feature/athlete%E2%80%99s-kitche...

Electrolytes: What are they? - http://www.runohio.com/read_feature/athlete%E2%80%99s-kitche...

What’s New in the Healthy Food Scene? - http://www.runohio.com/read_feature/what%E2%80%99s-new-healt...

Engineered Sports Foods: Convenience or Necessity? - http://www.runohio.com/read_feature/engineered-sports-foods-...

Holiday Gift Ideas: Yummy Sports Foods! - http://www.runohio.com/read_feature/athlete%E2%80%99s-kitche...
Frequently Asked Sports Nutrition Questions - http://www.runohio.com/read_feature/athlete%E2%80%99s-kitche...

Sports Nutrition Guidelines - http://www.runohio.com/read_feature/athlete%E2%80%99s-kitche...

Sports Nutrition News from ACSM - http://www.runohio.com/read_feature/athlete%E2%80%99s-kitche...

The Beat Goes On: Heart Health and Nutrition - http://www.runohio.com/read_feature/athlete%E2%80%99s-kitche...

Nancy Clark's Sports Nutrition Guidebook - http://www.runohio.com/read_feature/nancy-clarks-sports-nutr...

Sports Nutrition News from The American College of Sports Medicine http://www.runohio.com/read_feature/athletes-kitchen-sports-...

Winning Nutrition Books: Good Gifts for Good Health
http://www.runohio.com/read_feature/athletes-kitchen-winning...

Carbs: Quick, Slow or Confusing? - http://www.runohio.com/archive/features/07-02-07Athletes_Kit...

Fishing For Health - http://www.runohio.com/archive/features/01-07AthletesKitchen...

Fluid Facts for Runners - http://www.runohio.com/archive/features/07-02-07-A-Athletes_...

Carbo-loading: Tips for Endurance Athletes - http://www.runohio.com/archive/features/01-07AthletesKitchen...

Sports Nutrition News from The American College of Sports Medicine - http://www.runohio.com/archive/features/07-13-06Nutrition.ht...

EXERCISE & WEIGHT CONTROL: Myths, Truths, and Gender Differences - http://www.runohio.com/archive/features/03-13-06Athletes_Kit...

Sports Nutrition Tidbits - http://www.runohio.com/archive/features/04-10-06Nutrition.ht...

Energy bars: Costly Bar Convenient - http://www.runohio.com/archive/features/03-13-06Athletes_Kit...

Holiday Gifts from The Athlete's Kitchen - http://www.runohio.com/archive/features/12-05Athltes_Kitchen...

Loafing Around: Bread & Runners - http://www.runohio.com/archive/features/12-05Athltes_Kitchen...

Caffeine and Athletes - http://www.runohio.com/archive/features/09-05_athletes_kitch...

Building Muscle: Tricks of the Trade - http://www.runohio.com/archive/features/07-05Athletes_kitche...

Sports Nutrition News from ACSM - http://www.runohio.com/archive/features/06-05Athletes_kitche...

Salt and Runners: Shake it or Leave it? http://www.runohio.com/archive/features/05-05Athletes_kitche...

Eating for Endurance: What, When and Why http://www.runohio.com/archive/features/03-05-Athletes_Kitch...

The Link to Longevity http://www.runohio.com/archive/features/03-05-Athletes_Kitch...

For Junk Food Junkies: Newtrition Resolutions http://www.runohio.com/archive/features/01-05-athletes-kitch...

Sports Nutrition News from the American Dietetic Association - http://www.runohio.com/archive/features/The-Athletes-Kitchen...

When Food is the Foe: Disordered Eating in Runners - http://www.runohio.com/archive/features/09-20-04Athletes_kit...

Peanut Butter: A Super Sports Food - http://www.runohio.com/archive/features/09-20-04Athletes_kit...

How to Eat Well: A Primer for Athletes http://www.runohio.com/archive/features/08-04Athletes_Kitche...

Athletes: Abandon Atkinds, Not Carbs http://www.runohio.com/archive/features/05-17-04The_Athletes...

Questions Sports Parents Ask: What Should I Feed my Athletic Kids? http://www.runohio.com/archive/features/05-17-04The_Athletes...

Tips for Older Runners http://www.runohio.com/archive/features/01-24-04The_Athletes...

Nancy Clark's Sports Nutrition Guidebook http://www.runohio.com/archive/features/01-24-04naNCY_CLARKS...

The Gift of Good Food for you and your Friends
http://www.runohio.com/archive/features/01-24-04The_Athletes...

Breakfast is for Champions http://www.runohio.com/archive/features/03-17-03Athletes_kit...

Preventing Fatigue During Long Runs http://www.runohio.com/archive/features/03-17-03Athletes_kit...

Carbohydrate Bashing: A Passionate Pastime http://www.runohio.com/archive/features/01-01-01Athletes_Kit...

Alcohol & Athletes: A User's Guide http://www.runohio.com/archive/features/01-02-03ATHLETES_KIT...

Recommended Reading: Good Books That Make Great Gifts
http://www.runohio.com/archive/features/11-01-02Athletes_Kit...

Surfing the Web for Nutrition Information http://www.runohio.com/archive/features/10-01-02athletes_kit...

Value Meals: The High Price of Fast Foods http://www.runohio.com/archive/features/09-01Athletes_Kitche...

Disordered Eating, Food Obsessions & Compulsive Exercise: There's another way to live!
http://www.runohio.com/archive/features/07-01-02The_Athletes...

Foods to Keep Your Body Healthy –
http://www.runohio.com/archive/features/03-09-02The-Athletes...