TRANSPOSICION DE LOS GRANDES VASOS (TGV)
D- TGV: Switch Arterial:
Macros
Right below calories in our umbrella of importance is macronutrition. You see, unfortunately, calories don’t tell the entire story. Intuitively, we all know that 3000 calories of bread do not have the same effect on the body as, say, 3000 calories of chicken breast.
There’s just something about steak. Amirite?
Photo: wisegeek.com
One of the reasons this is the case is that the food we eat are primarily composed of three
macronutrients: proteins, fats, and carbohydrates. Fiber is another quasi-macronutrient of importance to us in powerlifting nutrition. Technically, it is a type of carbohydrate.
We’ll address each of these macronutrients one by one in order to better understand their importance in powerlifting nutrition.
Before we get too far ahead of ourselves, it is important to note that entire books can, and have, been written on the subjects we are about to VERY briefly discuss. Nutrition is like a rabbit hole. In terms of complexity, it can go just about as far and as deep as you’re personally inclined to go. For our purposes, we’re going to try to focus on the information that is of practical importance to powerlifting nutrition
specifically. The amazing and varied complexity of the entire topic of protein is going to be left to experts far more qualified than myself.
Protein
What it is actually important to know is that your body is completely reliant on dietary protein. That is, even if you get enough calories, you will still die eventually if you don’t consume any protein. Proteins are the very building blocks of life. Dietary protein contributes to the maintenance, restoration, and function of virtually every important organ in your body.
Typical dietary protein sources include chicken breast, tuna, eggs/egg whites, turkey breast, protein powder, beef, fish, cottage cheese, and milk. Please keep in mind that many foods have multiple macronutrients in them. Milk, for example, has protein, carbs, and fats in it. When we get to talking about tracking macronutrients, remember that all of these should be accounted for and not just the protein.
Meat is my favorite source of protein.
Photo: rivesqualitymeat.com
Back in the health and fitness world, you probably know that dietary protein is also necessary to help build new muscle tissues. Not only is dietary protein necessary to help build new muscle tissues, but it is also necessary to preserve what has already been built.
Again this primer on protein could easily consume another one-hundred pages. We’re not going to do that. If you want to learn everything there is to know about protein, I’d recommend Lyle McDonald’s protein book. For now, instead, let’s focus on the key take-away here: you HAVE to eat protein both to survive and to excel as a powerlifter.
Protein Needs
Protein needs vary significantly between populations. In the United States, the FDA recommendations for daily protein intake are 60-80g depending on gender. Now, this may be appropriate for your average sedentary individual, but this number grossly underestimates the optimal amount of protein for the average powerlifter.
The traditional way to prescribe protein needs is based on body weight. A recent research review conducted in part by Dr. Eric Helms, who is both a PhD and an actively competing bodybuilder and powerlifter, would suggest that appropriate daily levels also depend on whether or not an individual is currently in a caloric surplus or a caloric deficit. In a surplus, slightly less protein is needed: ~0.8g-1.0g/lb or ~1.8-2.2g/kg. In a caloric deficit more protein is required to maintain muscle mass: ~1.1-1.4g/lbs or
~2.3g-3.1g/kg.
However, research done by Dr. Layne Norton, and several others, has recently indicated that muscle protein synthesis, specifically, is optimized on a per-feeding basis. That is, beyond a certain limit, dietary protein consumed in one sitting does not contribute to further muscle protein synthesis. This is not to say that the protein isn’t used by the body at all, but merely that it isn’t used for further muscle building.
This research indicates that muscle protein synthesis may be optimized by consuming ~3-5g of Leucine every ~4-6 hours. Leucine is an amino acid which is a constituent of most proteins. The gist of the research is that the body does not become fully re-sensitized to amino acids in the blood stream for the aforementioned ~4-6 hour period because levels remain elevated until that time. If more protein is consumed before this sensitivity is regained, you receive a muted response in terms of maximally stimulating further muscle protein synthesis. In short, you don’t build as much muscle.
Photo: simplyshredded.com
While some in the fitness community debate the strength of the research supporting these findings, I’ve personally found adopting Dr. Norton’s suggested practices as measurably effective both in terms of my strength and the overall amount of muscle I am able to carry at any given time. As such, I will echo his recommendations. If you personally disagree, protein needs can be determined using the traditional body weight metrics.
In simple terms, “getting enough protein” for powerlifting means eating ~4-6 meals per day that contain 30-50g of protein because this is approximately how much it takes to get 3-5g of Leucine per meal. If you’re towards the smaller side, you’ll need less leucine to elicit the optimal response. If you’re bigger, you’ll need more. Regardless, this all adds up to approximately 120g-300g of protein per day.
Personally, I’d recommend shooting for 5 meals per day of 30-50g of protein. Use your bodyweight as a rough guide to help you determine the total amount that you’ll split between the meals. For example, a 200lbs male might consume a total of 200g of protein consisting of five 40g meals. A 150lbs female might consume 150g of protein consisting of five 30g meals.
As you can see, when you get down to putting this into practice, it isn’t too terribly difficult.
Fat
Much like protein, dietary fat is essential for life. Dietary fat contains “essential fatty acids” (EFAs) that the body simply cannot synthesize on its own. A certain amount of dietary fat is also needed to optimize your hormonal milieu, joint health, brain function, and a whole host of other bodily functions. In short, you cannot go without fat. And, really, who would want to? Fat is one of the reasons most of our favorite foods taste so good.
Typical dietary fat sources include nuts, butter, cooking oil, avocado, and chocolate. Many cuts of meat also have generous portions of fat.
Nuts are a very common source of fats.
Photo: huffingtonpost.com
In short, we need fat to survive, keep our health in check, and to keep ourselves sane when dieting.
Fat Needs
Unlike protein, fat needs are a bit harder to pinpoint in terms of grams consumed. Your primary goals with fat intake are making sure you meet your needs for EFAs, keeping fat above reasonable minimums for health purposes, and ensuring you’re actually able to comply with your diet plan. An ultra-low fat diet tends to be a diet that we cannot adhere to in the long term.
In general, for most powerlifting populations, an appropriate level of fat is going to be anywhere from 15-30% of total caloric intake. The reason for the wide range in potential levels of fat intake has entirely to do with circumstances. However, as a reasonable minimum, ~0.3g/lbs or ~0.6g/kg is as low as you’re going to be able to push things without experiencing long term issues related to under-consumption of fat.
When a powerlifter is dieting, and trying to lose weight, it is important to keep carbohydrate levels high enough that hard training can be sustained. In order to keep carbohydrate levels up, even while calories
levels are declining, it can be useful to use the lower end of the fat range when calculating how many grams to eat. This is really a matter of asset allocation: you reallocate some calories to carbs and, in order to do so, you have to take away from fat. You can’t change protein because your protein needs are based on maintaining your hard earned muscle mass.
For lifters who are not dieting, it makes sense to use a higher level of fat intake. It just simply isn’t necessary to use lower fat levels because you’ll have enough calories to work with that your carbohydrate levels will be high regardless.
If you’re an older athlete, or someone who just doesn’t respond well to carbohydrates, consider the higher levels of fat in the above range. As in everything, there is room for individuality. Remember, as I’ve repeatedly said, nutrition is a very deep and complex topic. These are general guidelines for large populations of powerlifters. You, however, are a specific individual. While the chances are that you are one of the many for whom these general guidelines work very well for, there is the off chance that you’d be better served with something very different. This is where coaching can come into play to help you optimize your training and nutrition.
In general, for the vast majority of circumstances, you’re going to want about 20-25% of your total caloric intake to come from fat. And, again, as a reasonable minimum do not drop things below ~0.3g/lb or ~0.6g/kg for a lengthy period of time (or possibly at all).
Carbohydrates
I guess we finally get to talk about carbohydrates and glycogen, eh? Woohoo!
Of the macronutrients we’ve discussed thus far, carbohydrates are the only one that is technically
“unnecessary” for survival. Even without dietary carbohydrates, you can survive. While glucose is typically used to fuel brain function, and glucose requires glycogen which requires dietary carbohydrate intake, the body is capable of producing an alternative fuel called “ketone bodies” through the process of “ketosis”.
You see, when you don’t eat carbs, and you only consume fats and proteins, your body enters the aforementioned state of ketosis. In an incredibly oversimplified generalization, ketosis is essentially a process by which your body begins to use fat as its main fuel source for everything (through ketone bodies). Many people have successfully used “keto diets” in order to accelerate their fat loss efforts.
There is even some research to suggest that being in ketosis may have performance benefits for endurance athletes.
However, as powerlifters, “keto diets” are not favorable, in my opinion, for a variety of reasons. Keep in mind that, again, we’re keeping this as simple as possible. If you want the in-depth discussion on keto, the man to go to is Lyle McDonald who literally wrote the book on the subject.
High intensity, anaerobic exercise, such as lifting heavy ass weights, is primarily fueled by ATP
(adrenosine triphosphate). ATP is created through a variety of cellular processes not all of which require the use of glycogen. With that said, as you begin to deplete your initial ATP stores, the body begins to preferentially break down glycogen in order to synthesize new ATP for further efforts. If you’re eating a
low-carb diet, this just doesn’t happen because you have little or no glycogen stored in the muscles to fuel the process. While you may not notice a decrease in performance in your initial sets, your ability to sustain a high workload will generally suffer quite noticeably. If you cannot train as hard or as long, you cannot become as strong and you will not be able to maintain as much of your previously earned strength or muscle mass.
Additionally, there is some evidence to suggest, albeit statistically insignificant, that consuming carbohydrates with protein slightly enhances the total muscle protein synthesis stimulated by that particular feeding.
As such, carbohydrates, in my eyes, are both critical to performance enhancement in terms of sustaining and increasing your workload and weight management in terms of maximizing the amount of muscle you gain or keep while dieting.
Carbohydrate Needs
It is important to remember the primary purpose that carbohydrates serve in powerlifting nutrition: fuel hard training. Now, if you were so inclined, you could probably determine, with semi-reasonable
accuracy, approximately how much glycogen your training was consuming. From there, you could plot out exactly how many carbs you needed, how much protein you needed, and then you could allocate the rest of your calories towards fat. You’ve probably already noticed that isn’t the approach I’ve advocated in this book and there are several reasons why.
First of all, if you’ve read ProgrammingToWin, you know that I STRONGLY endorse an autoregulated training style. With an autoregulated training style, I never know exactly how much work I’m going to do in a given session. Additionally, I’m constantly striving to push myself to do more work and harder work than I’ve ever done before. In other words, there is variance in how much glycogen I go through in any given training session. Further, I typically train six days per week.
Rather than trying to approximate exactly how many carbohydrates I need to properly fuel my training, I prefer to set my protein intake, then set my fat intake as a percentage of my total caloric intake, and I allocate literally everything else to carbohydrate intake. Using this method, my carbohydrate intake is as high as it can possibly get. Whether I am dieting or gaining weight, because my carbs are kept “high”, I’m likely to have enough glycogen in the tank to perform long, hard training sessions. Because of this type of allocation of macronutrients, many of my athletes, including myself, have actually experienced strength gains while dieting. Because we have a plethora of carbohydrates in our diet, we have enough energy to occasionally set volume and workload personal records even while in a caloric deficit. If you set volume personal records, rep and max records aren’t too far around the corner.
Again, let’s remember all the benefits of a full glycogen tank:
1) Water is required to store glycogen in the muscles. This added size improves your leverages under the bar.
2) When your glycogen tank is full, you have all the resources you need to produce ATP and survive long, hard, grueling workouts without hitting a wall.
3) Dietary carbohydrates may increase muscle protein synthesis when consumed at the same time as dietary protein.
For all these reasons, in terms of carbohydrate needs, I recommend using all of the calories you have left after accounting for protein and fat needs.
Fiber
Technically speaking, fiber is a type of carbohydrate. Essentially though, fiber is the indigestible material that is found in plants, fruits, whole grains, and a variety of other foods. The “substance” of fiber is such that it resists our natural digestive enzymes. While we can glean some energy from the processing of dietary fiber, for the most part, fiber’s real job is to act as “nature’s broom”. This undigested material pushing through our digestive system helps us “clean out”. Hey man, in the end, fiber makes it easier to poop.
In all seriousness, a certain level of fiber is necessary for gut health. With that said, you can definitely take it too far. Consuming TOO much fiber can potentially blunt nutrient absorption and actually impede proper bowel movements.
To keep food quality high in your diet, and to keep your gut in check, I’d recommend keeping your fiber intake between 10-20% of your total carbohydrate intake. That is, for every ~100g of carbs you
consume, try not to eat less than 10g of fiber and try not to eat more than 20g. This general rule of thumb will serve you well in 99% of situations. Keep in mind that this recommendation is not additional fiber on top of your carbohydrate intake but rather this fiber recommendation is made as a percentage of whatever your total carbohydrate intake already is.
The Relative Importance of Energy Balance and Macronutrition
Before we move on to the next chapters, I want to expound upon the relative importance of what we’ve covered thus far. Perhaps the single most important objective I had when I decided to offer a basic primer on nutrition in these earlier chapters was to help you clarify what matters most when designing a nutritional protocol for powerlifting.
With that in mind, please pay attention to what I’m about to say next: getting your caloric intake and macronutrition handled correctly is responsible for at least 80% of your progress nutritionally speaking.
To reiterate and state it differently, once you’ve got the correct caloric intake and macronutrient breakdown in your diet, you can only make marginal improvements to your nutrition protocol through virtually any other means.
I don’t know how else I can put this other than to say that, relative to macronutrition and energy
balance, supplements, meal frequency, nutrient timing, and food quality just aren’t that important. They just aren’t. While 99% of “diets” differentiate themselves using the four aforementioned properties and qualities, realistically, they are the factors least responsible for your nutritional success or failure.
Don’t forget your calories. Don’t forget your macros. Everything else matters a lot less.