Showing posts with label complex carbs. Show all posts
Showing posts with label complex carbs. Show all posts

Friday, May 21, 2010

Good Carbs Bad Carbs

Fad diets are great for three things—making the originator of the diet rich, making people spend a lot of money, and confusing the heck out of people. Dictionary.com defines "Fad" as a temporary fashion, notion, manner of conduct, etc., especially one followed enthusiastically by a group.
-
The success of a fad diet or fitness trend is usually not measured by the number of people who make healthy lasting life-changing habits. No, their success is usually measured by how much money they rake in. They're usually enough curious people that end up trying the method or product that monetarily the trend is a success. Often fads do produce an initial positive change that stirs-up a lot of hype, but usually the fad is not something that a person can stick with long term and incorporate into a life-long habit. The problem this causes is that the public tends to remember that initial change not that it didn't have a lasting effect. So, even long after the fad has past, the original thinking (or lack there of) that went along with the fad tends to hang around. That's kind of what happened with the No-Carb-Craze. There are still people that shy away from any kind of carb because they think they're all bad.

In general, people want that quick fix. We've all been suckered into one gimmick or another. I've owned an Ab Roller and yes a Health Rider too. Now that I look back and picture me on the Health Rider contraption, I think I must have looked like an overgrown kid on an adult hobby horse. And to think that thing cost almost $400! I bet more than a few of you have a Thigh Master hidden away on a closet shelf too! I remember when I was a kid, one of my mom's friends had a vibration belt machine. I think the theory was you could jiggle the fat away!

The '80s saw the low-fat craze which was followed in the '90s by the no-carb craze. There was even a store down the street from my home that was a Carb-Free Store. Luckily, People are finally coming out of the ban-the-Carbs-era, but it's amazing how many individuals still think carbs are the bad guys. The reality is that anything can be the bad guy if you over indulge. Carbohydrates are essential to your survival.

Actually one theory sports scientists have as to why many marathoners bonk around mile 20 is that the brain goes into protective mode when it thinks it's in danger of running out of carbs. So, to protect itself, the brain actually fatigues the muscles causing you to slow down, hence protecting those important carbs.

But even if you're not running a marathon, carbs are essential to your diet. According to Dietary Reference Intake (DRI) guidelines, your total caloric intake should be comprised of 45%-65% carbs. For simplicity let's just say 50%. So for a 2000 calorie diet, that's about 1000 calories.

So what is your DRI for carbs? In order to determine this, you need to know how many calories you consume in a day. You can do this a couple of ways. One way is to keep a log of your daily eating. Simply list (hand written in a journal or electronically on a spreadsheet) all the foods you eat each day for 3 days. Pick three days that represent your typical eating habits. Don't include a day that contains unusual eating such as attending a pot-luck-dinner or a dinner party where you may eat more than you normally would. Then use a calorie-counter book to list the calories for each food listed. Most of the new books include calories for common fast foods and prepackaged foods too. Or you can use a site like FitDay.com. This site is free and you can keep track of all your foods by using their extensive food data base as well as adding in your own foods that may not be listed. This site not only will keep track of calories, it can generate reports on other areas such as vitamin and mineral deficiencies.

Once you know the total calories for each of the three days, calculate the average for the three days to determine your daily Total Energy Intake. Your Total Energy Intake could be too low, just right, or too high. To determine the appropriate Total Energy Intake for someone with your height, weight, and activity level [click here] to use the Daily Calorie Needs Calculator. Compare your actual Total Energy Intake with the Daily Calorie Needs Calculator result. Are you in the ballpark? Do you need to eat more? Cut back?

Once you know what your daily caloric intake is (or should be) all you have to do is take 50% of your total daily calories and that's the number of calories you need each day from carbs. (If you want to have a range of calories to work with, multiply the Total Energy Intake by 45% and 65%. For a 2000 calorie diet, the carb-calorie range would be 900-1300 calories)

Nutrition labels usually list carbs in grams not in calories, but it can easily be converted. One gram of carbs equals four calories. So, a food that has 20g of carbs is going to contain 80 calories from those carbs. And thinking of it in the inverse relationship, if you're wondering how many grams of carbs equal 1000cals (your daily requirement of carbs for a 2000cal daily diet), just divide 1000 by 4 and you'll get 250 grams. So about about 1000 calories of your 2000-calorie daily diet will come from carbs and that equates to about 250 grams of carbs. (Keep in mind that you need to replace 2000 with whatever The Daily Calorie Needs Calculator computes as your daily caloric need.)

Cool. Now that you know the percent of daily calories that should come from carbs and you know how many grams of carbs that equals, there's one more thing you need to keep in mind—not all carbs are alike. The ban-all-carbs craze of the 90s (for the most part) categorized all carbs as bad. But, that you see, was the fad's "gimmick"—Eat Meat, Not Bread. It was a lot easier for the consumer to remember. And so began the dawn of the lettuce-wrapped burgers. Funny thing is that lettuce is actually a carb. Perfect example of what we're still trying to overcome today—over generalization of carbohydrates.

There's a lot of science and fancy words I could throw at you—saccharides, monosaccharides, disaccharides, polysaccharides, glucose, fructose, galactose, sucrose, lactose, maltose, and on and on. But the main thing to know is that all carbs consist of different types of sugar units (saccharides). What makes carbs good or bad depends on the number and type of sugar units it contains.

Simple carbs consist of one or two units of simple sugar. Because of this, they are very easy to digest and digest quickly. As a result, simple carbs are fast-acting. Ever notice how quickly you get a burst of energy after eating a candy bar? Problem is unless you put that energy to use with some type of physical activity, most likely those calories will be stored as fat. Eating too many simple carbs combined with a sedentary lifestyle are two of the biggest causes of obesity and adult onset diabetes today. I think sports nutritionist Nancy Clark says it best, "Carbohydrates are not fattening; excess calories are fattening."
-
Simple carbs are mainly represented by highly refined, processed, and packed foods such as cakes, cookies, crackers, white bread, candy, sugary soft drinks, fruit drinks, table sugar, corn syrup, pastries, fast foods, etc. Only about 10% of your daily carbs should come from simple carbs. 10% of 250 grams is only 25 grams. It's amazing how quickly you can use up or go beyond your 10% simple sugar limit:
Little Debbie Mini Powdered Doughnuts = 19g
REESE'S Peanut Butter Cups (2 cups) = 21g
Hershey Bar = 25g
Snickers Bar = 30g
Mountain Dew (12oz can) = 46g
Coke (12 oz can) = 39g
Coke (Medium from McDonalds) = 58g
Coke (32 oz Big Gulp Fountain Drink) = 91g


Complex carbohydrates contain long chains made up of three or more single sugar units. Because of this, they take longer for your body to digest and as a result will stay with you and provide energy for the long haul. You still need to be physically active or even complex carbs can eventually be stored as fat, but it takes longer to do so. As a runner, you most likely will have put those complex carb calories to good use during your runs.
-
Complex carbs include unprocessed, unrefined, whole grains (wheat, oatmeal, corn, brown and wild rice, etc.), nuts, seeds, dried beans, vegetables, and fruits. Complex carbs are also better than simple carbs because they contain many other vitamins, minerals and phytochemicals. Some complex carbs even provide other health benefits. Oatmeal for example, has been shown to help lower total cholesterol levels.

You have to be on your toes as a shopper. There are lots of grain products masquerading as whole-grain or whole wheat. Marketing gurus are quite clever in disguising what's really in their products. Just because it's brown doesn't mean it's whole-wheat or whole-grain. Some products contain caramel coloring to give it that brown whole-wheat/grain look. Also, steer clear of products using phrases such as "wheat", "enriched wheat flour", "multigrain", "5-grain", "rye", "made with whole wheat", "made with whole grain", or "contains the goodness of whole grain." Unless it says 100% whole grain or 100% whole wheat, it's probably not. Check the ingredients on the label. The closer to the front of the list the more it contains. Look for breads that have at least 3 grams of fiber. If you're at your local bagel shop or bakery, ask them to tell you about their whole-grain and whole-wheat products. In my experience they're more than willing to share with you what goes into their various offerings.

Carbs are an important link in a complex electrical and chemical chain of events that produce energy on which your body runs. Think energy in, energy out. As long as you're fueling your body properly and you're physically active, you'll be putting that fuel to good use and weight gain will be easier to avoid. It's when a higher percentage of simple carbs are ingested and a more sedentary lifestyle is adopted that weight gain will take hold.

Saturday, April 3, 2010

Fuel Your Engine With Quality Foods and Keep Fatigue at Bay

Yesterday, I posted somewhat of a check list to help you determine the possible source(s) of your running or training fatigue—overtraining, improper hydration, lack of sleep, low iron levels, lack of post-run refueling. Good nutrition for everyday running as well as during your training can also play an important part in keeping fatigue at bay.

USDA National guidelines specify that your daily caloric intake should consist of 45-65% carbs, 20-35% fat and 10-35% protein. The trick is making sure that those percentages consist of the right types of carbs, fats, and protein.

The fad diets of the late 90's and early 2000's had us all believing that carbs were our worst enemy. Fact is your body runs on carbs. Without carbs your brain couldn't function properly. As with most things, however, there's a good side and bad side to carbs. Unfortunately most Americans consume far too many of the bad or simple carbs (refined and processed grains and sugar). Cakes, doughnuts, pastries, white bread, candy, yada, yada, yada. More than likely if it's packaged and the first ingredient is sugar, it's not going to be good for you. There are several reasons these foods are bad. First simple carbs usually have a high GI (glycemic index) and can spike your blood sugar levels. You'll have that burst of energy and then soon after crash. Not only will it leave you feeling tired and fatigued, you'll soon feel hungry again and you'll be grabbing for something else to eat. Also, unless you're going to be active soon after eating those simple carbs, those calories will more than likely not be burned and will turn into fat. Foods consisting of simple carbs also often pack a double-whammy of being loaded with saturated fat or even trans fats both of which can lead to high cholesterol. Increased fat and a sedentary lifestyle can lead to obesity and for some to Type 2 diabetes. See a vicious cycle here?

The good or complex carbs that are found in whole grain foods take longer for your body to process. Because it takes longer, it leaves you more satisfied and it also allows your body to make use of those calories as energy. Foods high in complex carbs tend not to be loaded with extra sugar and/or fat. Being active is also important even if you're eating complex carbs. If you're sedentary, even those good carbs can turn to fat. But if you're active, those carbs will be the fuel to sustain that active lifestyle.

Simple carbs aren't all bad. If you need a little pick-me-up, the sugar fructose, found in fruits, vegetables, and honey can provide an immediate source of energy. This type of simple carb is much better for you than that candy bar, because the fruits and veggies also are nutrient dense. So along with that fructose, you're also getting a lot of vitamins and minerals as well as fiber. Speaking of fiber, eating a diet rich in fiber will help decrease your chance of colon cancer as well as help keep you "regular." A "clean" system will also help keep you from feeling sluggish. Who wants to run with an extra "load" anyway?

A diet high in fatty foods can also make you feel sluggish. That's why it's not recommended to eat much fat before a run...it can literally slow you down. Just like with carbs, there are "good guys" and "bad guys" for fats. Good fats are comprised of the liquid or soft monounsaturated and polyunsaturated fats and Omega 3 fatty acids. These types of fats play an important role in your overall good health. Monounsaturated fats include olive oil, canola oil, peanut oil, avocados, nuts, seeds. Polyunsaturated fats include vegetable oils (i.e., safflower, corn, sunflower, soy and cottonseed oils), nuts, and a variety of seeds. Omega 3 fatty acids are found in foods such as salmon, mackerel, herring, flaxseeds, flax oil, and walnuts.

Saturated fats and trans fats are the bad guys. Both of these types of fats increase the amount of cholesterol in your blood and a high level of cholesterol in your blood is associated with increased risk of coronary heart disease. Saturated fats are found in animal products (i.e., meat, poultry, seafood, eggs, dairy products, lard, butter), and coconut, palm and other tropical oils. Trans fats need to be avoided altogether. Now your body actually does need some saturated fat. Choosing leaner cuts of meat, turkey, and chicken will help keep the amount of saturated fat to a minimum. As a rule of thumb, try to limit your daily intake of saturated fats to about 7% of your total daily calories.

Trans fats include partially hydrogenated vegetable oils, commercial baked goods (i.e., crackers, cakes, cookies), fried foods (i.e., doughnuts, French fries), shortening, many types of margarine. Your daily intake of trans fats should be less than 1% (preferably 0%!). The remaining fat in your diet should come from sources of monounsaturated and polyunsaturated fats.

Protein is important because it provides the amino acids needed for building and maintaining your body tissue. There are 20 amino acids. Eleven of these amino acids (dispensable) can be made by the body. Nine of them however (indispensable amino acids), come from a variety of food sources. Foods that are high quality or complete protein sources have all nine of the indispensable amino acids. Animal food sources are complete proteins. Soy and quinoa (pronounced keen-wa)are the only plant food sources containing complete proteins. Other plant food sources are considered incomplete proteins because they are missing one or more of the indispensable amino acids. Combining plant food sources can create a complete protein such as combining beans and rice or peanut butter and bread.

Food really is the fuel on which our bodies run. If you're putting in premium food, then your engine will purr like a kitten. Put in the low-grade stuff and you're engine might just stall. Making sure you fuel your body throughout the day is key as well. Many people skip breakfast or eat very little for breakfast and then wonder why they poop out before lunch. Breakfast truly is the most important meal of the day. It's your first fueling.

Eating 5 or 6 mini-meals is a great way to provide the energy you need throughout the day. Think about it. You skip breakfast and so you're starving by lunch. If you skimp on lunch, then you're more than likely going to stop by the convenient store on the way home and load up on simple carbs (which won't satisfy you). So by dinner time you're so ravenous that you lose all control and before you know it you've eaten dinner plus that half gallon of Rocky Road!

If you eat each meal (breakfast, lunch, and dinner) and have a midmorning, midafternoon, and post dinner snack, you'll keep that engine (your metabolism) firing all day long which actually will have you burning more calories. Lowfat traditional or Greek yogurt, peanut butter on whole wheat bread, a handful of almonds, fruit, raw veggies, granola bars...all of these make great snacks. Now, keep in mind that eating more frequently doesn't mean eating more calories. You're still eating the same amount of calories, just spread out over smaller meals throughout the entire day.