Fueling your body takes effort. It’s much easier to run out the door without breakfast, stop at a fast food restaurant for lunch, and throw some money in a vending machine for a snack loaded with refined carbohydrates and trans fat rather than taking the time to plan ahead so you are putting high nutrient foods in your “tank,” so to speak. Think about the last time you were on a long trip; did you take some healthy options or did you rely on the myriad of “health foods” that rest areas or planes offer? Maybe at work you’ve been burning the candle at both ends and not doing what it takes to perform at your peak; either physically or mentally. We’ve all probably found ourselves in these types of situations. Fortunately there are options.

When talking with folks about weight loss, weight gain, or just health, I always recommend they are prepared for anything. You never know when you’re going to be driving home from work for a seemingly normal day to go home and eat dinner, when you get a flat. Or maybe there is unexpected traffic from an accident. Next thing you know, you get home one hour later than expected, and you’re now so hungry you’ll eat anything that gets in the way—even if it’s the door to get into the house.

Like meal replacement powders, nutrition bars should be part of your “safety” arsenal and are great as snacks to keep you going in the middle of the day. Plugging in a blender in your car or on an airplane doesn’t always work so well, but pulling a bar out of your glove compartment does. Of course real food is the best option for all meals of the day; I’m not recommending replacing all your real foods with snack bars, but on occasion they can surely make life easier (and healthier) if you compare them to other available options. The only problem with many “nutrition” bars is that they are nothing more than a well-packaged candy bar, that tastes like you’re choking down chocolate covered chalk. So how do you pick a bar that suits your needs?

First or all, just like with foods, take a look at the nutrition label. Remember that the order of ingredients dictates how much of each is in the product. The first ingredient on the label is the one that is most abundant in the product and the further down the list, the less that is actually in there. If trying to gain some lean body mass, pick a bar that provides a good amount of total calories and is a good source of high quality protein. Bars are notoriously high in low quality protein; if hydrolyzed gelatin is one of the first ingredients, put the bar back. Let’s dissect some of the most popular ingredients in many bars.

Here’s a very brief synopsis of a few proteins you may see gracing the sides of bars.

Whey Protein
Before getting into some different components of whey, it’s important to first describe whey protein itself. Whey protein is taken directly from cheese production (think Little Miss Muffet, eating her curds and whey). The product is clarified, to remove the most or all of the fat and lactose, and dried into a white powder. The extent of isolation and purification then determines what type of whey is produced.

Whey Protein Concentrate (WPC)
WPC is one of the cheapest methods of whey production, leaving some other non-protein components in the powder in addition to protein itself. When compared to more expensive forms of whey protein, it contains a little less protein per gram, which is why it is less expensive, but this does not make it a useless form of protein. Whey protein concentrate has some specific components in it that are otherwise filtered out with the isolate.

Whey Protein Isolate (WPI)
WPI is more expensive because gram for gram, it contains more protein than other forms of whey. It also has higher levels of some immunoglobins and certain amino acids than other forms of whey.

Casein Protein
Casein protein is commonly found in dairy products (think lumps in cottage cheese). Casein is actually the curds part of the separated cheese (Little Miss Muffet apparently wasn’t happy referring to her curds as casein, she preferred to eat her curds and whey because it sounded catchier in the famous children’s poem). Because casein is highest in dairy products, it’s not surprising that it also contains more lactose than whey protein.

Protein Hydrolysates (all inclusive for all hydrolyzed proteins)
Hydrolyzed proteins are ones that have been enzymatically broken down. This process makes the protein more easily digestible because there is less work for your GI tract. Proponents of this form of protein promote its ability to be absorbed more rapidly (because it is essentially pre-digested).

Soy Protein
Soy protein is commonly used in many different bars. Soy offers another unique mix of amino acids. Soy is one of the higher quality plant proteins and its inclusion should not be shunned.

Now, depending on the type of nutrition plan you may be following (e.g., low or high carb), only certain bars may fit into your plan. Some bars include more carbohydrates; here are some of the more popular carbs included.

Whole Carbohydrates
Some of the better bars available use whole oats as a source of carbohydrates; oats are loaded with fiber and nutrients, so they’re great to have in a bar (and should be part of your meal plan, too).

Maltodextrin
Maltodextrin is a common glucose polymer (chain of glucose molecules) that is one of the more prevalent carbohydrates added to many bars. It is relatively inexpensive, causes a rapid rise in blood sugar (recommended post-workout) and adds sweetness (i.e. flavor).

Essential Fatty Acids (EFA’s)
Essential fatty acids are one of the more recent additions to quality bars. They are often added as peanuts, sunflower oil and/or flax seed, although flax seed. EFA’s are typically included to slow the rapid rise in blood sugar following a meal and for their known health benefits.

There are also a few ingredients you need to keep an eye out for and avoid like the plague. First and foremost is hydrogenated or partially hydrogenated oil. Companies often add hydrogenated oils to their products because it is a cheap way to make their product taste good; unfortunately they don’t include a coupon for an angioplasty too because too much hydrogenated oil (which give a nice dose of artery-clogging trans-fatty acids) is not heart healthy. The American diet is already filled with too many trans fatty acids; when someone is finally trying to make a healthy adjustment, like replacing a fast food meal or vending machine snack with a healthy bar, they would be shooting themselves in the foot. Unfortunately these are found in many bars, but should be avoided like the plague! There is no dietary requirement for trans fats, they are more harmful than saturated fats, they negatively effect blood lipids, and have been correlated to cardiovascular disease risk!

Similarly, high fructose corn syrup is a cheap sweetener used in many products that permeates most of the foods on store shelves. Unfortunately, it has also made its way too many bars. High quality products have never and will never contain such ingredients.

Again, snack bars should not be the mainstay of anyone's diet, no matter who you are; however, they can definitely make a nice addition for convenience alone - and many of them actually taste great. If you have you hold your nose, jump up and down, and almost pass-out just to choke down your chalky bar, it’s not going to have much benefit due to lack of compliance. On the contrary, if you have a product that is enjoyable and contains most of the positive aforementioned ingredients discussed, you’re in luck. Remember to read the labels and pick the product that best suits your needs in the categories of taste, convenience, and value.

Dr. Chris Mohr RD, PhD is a health nutrition consultant to a number of media outlets and corporations including Discovery Health Channel, Clif Bar, Waterfront Media, and Fit Fuel. He has authored and co-authored several textbooks and textbook chapters, including consulting with LL Cool J on "LL Cool J's Platinum Workout" (Rodale Press, 2006). He is also co-creator of Meal Plans 101 nutrition software.

 
 

I once discussed how eating more frequently could be better for weight loss. While this may be important to many of you, others may be more concerned with enhancing performance, strength gains, and gaining lean body mass. It is those of you for whom this article is geared towards. This week I’ll discuss why eating the right foods more frequently will undoubtedly make you bigger and stronger—and this isn’t some over hyped ad; it’s real life, based on science.

You’ve probably heard that breakfast is the most important meal of the day. While this if difficult to refute, pre- and post-workout nutrition are tied for a close second, with “during” nutrition just a nose behind. Refueling immediately post-workout is probably not a new concept. Working out depletes glycogen (the storage form of carbohydrate) and promotes protein breakdown (catabolism). Eating the proper nutrients soon after a workout will help replenish this glycogen and enhance protein building (anabolism). Always remember that working out is merely a stimulus needed to enhance muscle growth and recovery. However it’s the actual time between workouts when your muscles grow.

The late Mike Mentzer used a great analogy when discussing training. Lifting weights is like digging a hole in your muscles. If you continue to train and train without allowing for adequate recovery, the hole, per se, will only get bigger. Although he was speaking more in terms of overtraining, this same philosophy can be adopted to nutrition. If you continue to train and don’t feed your body the nutrients it needs (adequate energy via macronutrients and nutrient dense foods), the hole will continue to grow deeper. Refueling the body allows for growth (i.e., you fill the hole from training with new lean body mass). Ultimately, overtime this hole will not only “fill in” but will begin to overcompensate by overflowing or, growing larger by building more lean body mass. Extrapolating this example to nutrition and what you now know happens during rest, you should be well-aware that post-workout nutrition is crucial for recovery. Since this is not a new discovery, this article will concentrate more on pre- and post-workout nutrition. Several recent studies have demonstrated the importance of this concept, so let’s take a look.

As I mentioned, training results in muscle protein breakdown; therefore, it makes sense that the higher the baseline protein status, the less negative impact training would have. To look at this simplistically, if you start at 100% protein status and go down to 50% from training, it would be better than starting at 50% and going down to 0% from training. In the second example you would always be trying to get up to 100%, whereas if you consistently fed your body the nutrients it needs, you would be better off.

A recent study investigated whether ingestion of a supplement (6 grams of essential amino acids and 35 grams of sucrose) taken immediately before or after a training bout would alter the net protein balance in muscle. Interestingly, the authors noticed a significantly greater increase in those taking the pre-workout supplement compared to those taking a post-workout supplement. It appears that the mechanism here is there were more amino acids (remember these are the building blocks of protein) available for the working muscle. Moreover, this effect carried over so that there was enhanced availability of amino acids for at least the first hour of the workout. So, you ask, “what if my workouts last more than an hour?”

Well, maybe it’s time to refeed your body some more nutrients during your workout. Why should you hinder your workout because your muscles are tired, hungry, and just plain beat up? Race car drivers have the fastest, top notch cars available. However, during the Indy 500, for example, they need to stop to refuel. Think of your muscles as race cars; you don’t give them the fuels they need and they won’t perform.

So now the question is not only if you should feed your body before and/or during a workout, but what should you feed your body at these times. As I discussed in the previous study, participants received 6 grams of essential amino acids (equivalent to approximately 12-15 grams of whole proteins) and 35 grams of sucrose (carbohydrate). In terms of protein, there are obviously a million choices. But I don’t think gnawing on a filet mignon on your way to the gym is intelligent. As you are all aware, there are also a number of protein powders available (whey, casein, soy, etc). Furthermore, the processing of these proteins differs too (hydrolysates, isolates, and concentrates). Wow, this is starting to get a bit technical. Let’s cut to the chase.

Studies have shown that whey protein, when consumed independent of any other foods, is absorbed more rapidly than casein protein. Although most of the time foods are often combined with one another, it’s safe to say whey is generally absorbed more rapidly. In terms of the various processing methods, taking one over the other will not make or break your muscle gains. Therefore, if taking a protein supplement prior to a workout, it would be best to take a quality whey protein supplement. Similarly, if taking a product during or after a workout, whey would take the cake. This is because you want a protein that’s rapidly available to your muscles. You don’t want to be sitting at the gym with a stomach full of protein powder sloshing around. Try a set of squats like that! With that said, mixing whey protein with some carbohydrates (either via powder or your favorite carbohydrate product—not soda!) would be wise.

There are a number of pre-designed formulas on the market. In general it would be best to stick with a carbohydrate:protein ratio of approximately 3 or 4:1 (e.g., for every 30 or 40 grams of carbohydrate, you should have 10 grams of protein). This could be a great thing to drink slowly on the way to the gym and continue to sip throughout your workout. Then, be sure to consume sufficient energy immediately after your workout and continue to refeed your body throughout the day. Of course whole foods provide more nutrients than any supplement can provide, but carbohydrate:protein supplements are much more applicable and easily digested, so are useful immediately before, during and after workouts.

So now let’s get back to the frequency of eating statement from the beginning. Utilizing the recommendations from my last piece on meal frequency, plus those in this column, one would be eating about 8 times per day. Without getting into meal specifics, here’s an example of a day:

Meal 1
Breakfast

Meal 2
Pre-workout drink

Workout

Meal 3
During workout drink

Meal 4
Post-workout drink

Meal 5
Lunch

Meal 6
Afternoon snack

Meal 7
Dinner

Meal 8
Evening snack

Of course when I use the word “snack” I am referring to a nutrient dense food, such as low-fat yogurt, fruit, etc. rather than what most American’s consider as snacks. As long as your energy intake is sufficient for muscle growth and enhanced recovery, but not so high it’s resulting in fat storage, you’re on the way to a new you. The best judge of that is the mirror; not the scale or anyone else. Only you can set goals for yourself and shoot to achieve those; don’t let anyone or anything get in your way.

Until next time, here’s to good health!

Dr. Chris Mohr RD, PhD is a health nutrition consultant to a number of media outlets and corporations including Discovery Health Channel, Clif Bar, Waterfront Media, and Fit Fuel. He has authored and co-authored several textbooks and textbook chapters, including consulting with LL Cool J on "LL Cool J's Platinum Workout" (Rodale Press, 2006). He is also co-creator of Meal Plans 101 nutrition software.